CN111607407A - Lignite mineral source soil conditioner and preparation method thereof - Google Patents
Lignite mineral source soil conditioner and preparation method thereof Download PDFInfo
- Publication number
- CN111607407A CN111607407A CN202010544024.9A CN202010544024A CN111607407A CN 111607407 A CN111607407 A CN 111607407A CN 202010544024 A CN202010544024 A CN 202010544024A CN 111607407 A CN111607407 A CN 111607407A
- Authority
- CN
- China
- Prior art keywords
- lignite
- soil conditioner
- content
- soil
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
- C05F11/02—Other organic fertilisers from peat, brown coal, and similar vegetable deposits
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Abstract
The invention relates to a lignite mineral source soil conditioner and a preparation method thereof. The lignite mineral source soil conditioner comprises, by weight, more than 30% of organic matter, more than 7% of humic acid and less than 30% of water. The soil conditioner is prepared by taking a lignite ore source as a raw material through an oxygen-deficient high-temperature cracking process. The beneficial effects are as follows: the mineral lignite is used as a raw material, and has the characteristics of complete hydrolysis and biochemical actions in the nature, enrichment of humic acid, cellulose, lignin, organic compounds and the like in the diagenetic process. Has the effects of increasing soil organic matters, improving soil properties, maintaining fertilizer and water, reducing heavy metal ions absorbed by crops, promoting crop metabolism and balancing soil microbial environment.
Description
Technical Field
The invention relates to the technical field of soil conditioner preparation, in particular to a lignite mineral source soil conditioner and a preparation method thereof.
Background
Soil is an important resource on which people rely to live, but with the continuous development of economy and society, although chemical agriculture solves the yield problem, the soil is seriously damaged, and the soil degradation is increasingly obvious. How to improve the soil quality, repair degraded soil and improve the soil productivity becomes an important problem to be solved urgently. Many research reports indicate that the soil conditioner is an important product in the soil improvement technology, can coordinate the solid-liquid-gas three-phase proportion in soil, improve the biological activity of the soil, increase the release of soil nutrients, effectively regulate the pH value of the soil, promote the root growth and the plant development of crops, improve the disease resistance, the antibacterial property and the stress resistance of the crops, improve the fruit quality of the crops, and create good environmental conditions for realizing high quality, high yield and stable yield of agriculture; meanwhile, the soil conditioner can also decompose residual chemical fertilizers and pesticides in soil and plants, and chelate the pollution of heavy metals to the environment. The soil conditioner is reasonably used, so that the soil degradation can be effectively relieved, and the soil quality is improved.
According to the definition of agricultural industry standard NY/T3034-2016 of the people's republic of China, the soil conditioner is a material added into soil to improve the physical, chemical and/or biological properties of the soil, and is suitable for improving the soil structure, reducing the saline-alkali harm of the soil, adjusting the pH value of the soil, improving the water condition of the soil, repairing the polluted soil and the like. The research of the soil conditioner starts at the end of the 19 th century, and more single raw materials such as potash feldspar, zeolite, fly ash and sludge are researched aiming at the soil of arid, semiarid and saline-alkali soil, but the single raw materials have negative effects such as unbalance of soil acidity and alkalinity and damage of soil microbial environment, and cannot be used for a long time, and meanwhile, the quality of the soil is affected by overhigh mineral content, the soil is damaged, and the effect of improving the soil cannot be achieved.
Lignite is mineral coal with a relatively low coalification degree, is an initial product of organic biogenic rock which is transformed by dehydration and compaction after peat deposition, and is named because the appearance is brown or dark brown. Lignite has a large reserve, but has been difficult to use as a coal due to its disadvantages of high moisture and high ash content. However, lignite contains humic acid and organic matters and can be used as a soil conditioner, but the existing method for preparing the soil conditioner by using lignite is to directly adopt a mode of compounding lignite with other raw materials or fermenting after compounding, only the soil conditioner is completed based on a mode of physically mixing or adding lignite, harmful ingredients and beneficial ingredients possibly existing in the raw materials can be reserved and are difficult to absorb by crops, and the soil conditioner has defects in the aspects of improving soil properties, preserving fertilizer and water and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a lignite mineral source soil conditioner and a preparation method thereof. The soil conditioner is prepared by taking mineral lignite as a raw material, utilizing the characteristics that the mineral lignite completes hydrolysis and biochemical action (organic matter degradation process) in nature, and enriches humic acid, cellulose, lignin, organic compounds and the like in the diagenesis process, and adopting an oxygen-deficient high-temperature cracking process. Has the effects of increasing soil organic matters, improving soil properties, maintaining fertilizer and water, reducing heavy metal ions absorbed by crops, promoting crop metabolism and balancing soil microbial environment.
The invention provides a lignite mineral source soil conditioner, which adopts the technical scheme that:
the lignite mineral source soil conditioner comprises, by weight, more than 30% of organic matter, more than 7% of humic acid and less than 30% of water.
Preferably, the soil conditioner is prepared by using a lignite ore source as a raw material through an oxygen-deficient pyrolysis process; the soil conditioner has an organic matter content of more than 45% and a humic acid content of more than 7%.
Further, the organic matter content of the soil conditioner is more than 35%, and the humic acid content is more than 10%; further, the content of organic matters in the soil conditioner is more than 55%, and the content of humic acid is more than 12%.
Preferably, the particle size of the soil conditioner is less than 3 mm, the organic matter content of the soil conditioner is more than 40%, and the humic acid content is more than 8%.
Preferably, the soil conditioner is actually nontoxic when evaluated by the acute oral toxicity classification standard, and the soil conditioner is acidic.
Preferably, the soil conditioner roundworm egg mortality is greater than 98%; the soil conditioner has the mercury content of less than 5mg/kg, the arsenic content of less than 10mg/kg, the cadmium content of less than 10mg/kg, the lead content of less than 50mg/kg and the chromium content of less than 50 mg/kg.
A preparation method of a lignite mineral source soil conditioner comprises the steps of crushing a lignite raw material of a mineral source, feeding the crushed lignite raw material into a hot blast stove, controlling the temperature in the hot blast stove to be 500-.
Preferably, the ore source lignite raw material is crushed to the particle size of less than 1 cm and then sent into the hot blast stove.
Preferably, the lignite is cooled by discharging to a water tank for water cooling or discharging to a slag cooler for air cooling.
Preferably, the cooled lignite is dehydrated to the moisture content of below 30%;
and crushing the dehydrated material to a particle size of less than 3 mm.
Preferably, the lignite feedstock is derived from herbaceous, moss or woody carboniferous plants.
The implementation of the invention comprises the following technical effects:
the preparation method of the lignite mineral source soil conditioner adopts an oxygen-deficient pyrolysis process, separates out harmful substances such as volatile components and tar components in lignite, discharges the harmful substances along with hot flue gas, activates humic acid, and improves soil organic matter content by more than 30 percent. The content of humic acid in the soil conditioner is more than 7 percent, the soil conditioner is acidic, the pH value of the soil can be effectively reduced, the alkali soil nutrient deficiency symptom is relieved, and the soil conditioner and the fertilizer are applied together, can promote nitrogen, dissolve phosphorus and release potassium, and realize yield increase. The soil conditioner obtained by the oxygen-deficient pyrolysis process is more beneficial to crop absorption, improves soil properties, and maintains fertilizer and water.
The death rate of ascarid eggs of the soil conditioner obtained by the invention is more than 98 percent, the number of faecal coliform bacteria is less than 100 per gram, and the soil conditioner can reduce soil-borne diseases and insect pests and improve beneficial microbial floras of soil. The soil conditioner has the mercury content of less than 5mg/kg, the arsenic content of less than 10mg/kg, the cadmium content of less than 10mg/kg, the lead content of less than 50mg/kg and the chromium content of less than 50 mg/kg. The content of harmful heavy metals is low, the heavy metal accumulation of the soil can not be caused after the soil is applied to the soil for a long time, and the long-term sustainable utilization and production of the soil are facilitated.
The soil conditioner provided by the invention is a product which is processed by a scientific process and takes natural lignite rich in organic matters and humic acid as a main raw material, has three very remarkable soil conditioning performances of water retention, fertilizer increase and air permeability, and can break soil hardening, loosen soil, improve soil air permeability, reduce soil volume weight, promote soil microbial activity and enhance soil fertilizer water permeability; it can improve soil and control desert. The water retention and drought resistance are realized, the disease resistance of crops is enhanced, the crop yield is improved, the quality of agricultural products is improved, the original ecology of the crops is recovered, and the survival rate of tree planting and the yield of the agricultural products are greatly improved; improve the quality of agricultural and forestry products and restore the natural appearance of the agricultural and forestry products. The fertilizer is completely pollution-free, pollution-free and free of biological hormone, is different from various chemical fertilizers, pesticides, leaf fertilizers and biological hormones in the international market, and is a novel green production material.
Detailed Description
The present invention will be described in detail with reference to the following examples, which are intended to facilitate the understanding of the present invention and should not be construed as limiting in any way.
Example 1
According to the lignite mineral source soil conditioner provided by the embodiment, by weight, the organic matter content of the soil conditioner is more than 30%, the humic acid content is more than 7%, and the water content is less than 30%. The soil conditioner is prepared by taking a lignite ore source as a raw material through an oxygen-deficient high-temperature cracking process. Organic matter refers to all carbon-containing compounds except carbonates. The soil conditioner is produced by taking mineral lignite as a raw material, utilizing the characteristics that the mineral lignite completes hydrolysis and biochemical action in the nature, and enriches humic acid, cellulose, lignin, organic compounds and the like in the diagenetic process and adopting an oxygen-deficient high-temperature cracking process. Has the effects of increasing soil organic matters, improving soil properties, maintaining fertilizer and water, reducing heavy metal ions absorbed by crops, promoting crop metabolism and balancing soil microbial environment. The water content is limited to be less than 30%, which is beneficial to long-term storage and can not deteriorate.
Further, the particle size of the soil conditioner is less than 3 mm, the organic matter content of the soil conditioner is more than 50%, and the humic acid content is more than 7%. The soil conditioner is actually nontoxic when evaluated by the acute oral toxicity grading standard, and the soil conditioner is acidic. The death rate of roundworm eggs in the soil conditioner is more than 98 percent; the soil conditioner has the mercury content of less than 5mg/kg, the arsenic content of less than 10mg/kg, the cadmium content of less than 10mg/kg, the lead content of less than 50mg/kg and the chromium content of less than 50 mg/kg.
The embodiment also provides a preparation method of the lignite mineral source soil conditioner, lignite is taken from coal mines of Mueller mountain Star village in Yunnan province, and coal-forming plants are woody plants in the third and later periods. Specifically, the ore source lignite raw material is crushed and then sent into a hot blast furnace, the temperature in the hot blast furnace is 500-. The ore source lignite is crushed and then evenly fed into a hopper of a hot blast stove, the oxygen content in the hot blast stove is controlled to be less than 5%, the low oxygen content is controlled to prevent beneficial components in the lignite from burning, the reduction of the nutrient content of a soil conditioner is avoided, the lignite can be prevented from exploding at high temperature, under the condition of high temperature and oxygen deficiency, harmful substances such as volatile components and tar components in the lignite are separated out, the harmful components are discharged along with hot flue gas, humic acid can be activated, and ascarid eggs can be killed at high temperature.
Preferably, the ore source lignite raw material is crushed to the particle size of less than 1 cm and then is sent into a hot blast stove; experimental research shows that the lignite raw material is crushed to the particle size of less than 1 cm, so that harmful substances such as volatile components, tar components and the like in the lignite are separated out in the oxygen-deficient pyrolysis treatment link, and the dehydration of the lignite with high water content and the activation of humic acid are facilitated. The lignite is cooled by discharging to a water tank for water cooling or discharging to a slag cooler for air cooling. The water cooling or air cooling mode has low cost and is beneficial to large-scale production. Dewatering the cooled lignite to a water content of below 30% (by weight); the treated lignite is continuously dehydrated, so that the lignite is beneficial to long-term storage and cannot deteriorate. Crushing the dehydrated material to a particle size of less than 3 mm; and packaging the crushed lignite to obtain the soil conditioner. Experimental research shows that the dehydrated materials are crushed to the particle size of less than 3 mm, the soil adjusting effect is better, and beneficial ingredients are more beneficial to being absorbed by crops.
Preferably, the lignite feedstock is derived from herbaceous, moss and woody carboniferous plants. Alternatively, the lignite is moved horizontally in a hot blast furnace in a non-fluidized manner. Specifically, horizontal non-fluidization means that the pulverized coal flows in a horizontal direction in the hot blast furnace, and the hot blast does not form fluidization with the lignite.
Example 2
The preparation method of the lignite mineral source soil conditioner comprises the steps of crushing mineral source lignite raw materials until all particle sizes are smaller than 1 cm, sending the crushed raw materials into a hot air furnace, wherein the temperature in the hot air furnace is 1300 ℃, the oxygen content in the hot air furnace is smaller than 5%, carrying out oxygen-deficient high-temperature cracking on the lignite in the hot air furnace, and cooling the lignite by discharging the lignite into a slag cooler for air cooling, and dehydrating the cooled lignite until the water content is below 30% (by weight); crushing the dehydrated material to a particle size of less than 3 mm; and packaging the crushed lignite to obtain the soil conditioner.
Through detection, the content of organic matters in the obtained soil conditioner is more than 49%, the content of humic acid is more than 7.1%, the soil conditioner is evaluated to be actually nontoxic through an acute oral toxicity grading standard, and the soil conditioner is acidic. The death rate of roundworm eggs in the soil conditioner is more than 98 percent; the soil conditioner has the mercury content of less than 5mg/kg, the arsenic content of less than 10mg/kg, the cadmium content of less than 10mg/kg, the lead content of less than 50mg/kg and the chromium content of less than 50 mg/kg.
Example 3
The preparation method of the lignite mineral source soil conditioner comprises the steps of crushing mineral source lignite raw materials until all particle sizes are smaller than 1 cm, sending the crushed lignite raw materials into a hot air furnace, wherein the temperature in the hot air furnace is 800 ℃, the oxygen content in the hot air furnace is smaller than 3%, carrying out oxygen deficiency pyrolysis on the lignite in the hot air furnace, and cooling the lignite by discharging the lignite into a water tank for water cooling, wherein the water content of the cooled lignite is below 30% (by weight); crushing the dehydrated material until the particle size is less than 3 mm; and packaging the crushed lignite to obtain the soil conditioner.
Through detection, the organic matter content of the obtained soil conditioner is more than 55.2%, the humic acid content is more than 9.3%, the soil conditioner is actually non-toxic according to the evaluation of the acute oral toxicity classification standard, and the soil conditioner is acidic. The death rate of roundworm eggs in the soil conditioner is more than 98 percent; the soil conditioner has the mercury content of less than 5mg/kg, the arsenic content of less than 10mg/kg, the cadmium content of less than 10mg/kg, the lead content of less than 50mg/kg and the chromium content of less than 50 mg/kg.
Example 4
The preparation method of the lignite mineral source soil conditioner comprises the steps of crushing mineral source lignite raw materials until all particle sizes are smaller than 1 cm, sending the crushed raw materials into a hot air furnace, wherein the temperature in the hot air furnace is 500 ℃, the oxygen content in the hot air furnace is smaller than 3%, carrying out oxygen-deficient high-temperature cracking on the lignite in the hot air furnace, and cooling the lignite by discharging the lignite into a slag cooler for air cooling, and dehydrating the cooled lignite until the water content is below 30% (by weight); crushing the dehydrated material to a particle size of less than 3 mm; and packaging the crushed lignite to obtain the soil conditioner.
Through detection, the organic matter content of the obtained soil conditioner is more than 58.4%, the humic acid content is more than 12.6%, the soil conditioner is actually non-toxic according to the evaluation of the acute oral toxicity classification standard, and the soil conditioner is acidic. The death rate of roundworm eggs in the soil conditioner is more than 98 percent; the soil conditioner has the mercury content of less than 5mg/kg, the arsenic content of less than 10mg/kg, the cadmium content of less than 10mg/kg, the lead content of less than 50mg/kg and the chromium content of less than 50 mg/kg.
Example 5
The preparation method of the lignite mineral source soil conditioner comprises the steps of crushing mineral source lignite raw materials until all particle sizes are smaller than 1 cm, sending the crushed raw materials into a hot air furnace, wherein the temperature in the hot air furnace is 1200 ℃, the oxygen content in the hot air furnace is smaller than 5%, carrying out oxygen deficiency pyrolysis on the lignite in the hot air furnace, and cooling the lignite by discharging the lignite into a water tank for water cooling, wherein the water content of the cooled lignite is below 30% (by weight); crushing the dehydrated material to a particle size of less than 3 mm; and packaging the crushed lignite to obtain the soil conditioner.
Through detection, the organic matter content of the obtained soil conditioner is greater than 56.4%, the humic acid content is greater than 12.1%, the soil conditioner is actually non-toxic according to the evaluation of the acute oral toxicity classification standard, and the soil conditioner is acidic. The death rate of roundworm eggs in the soil conditioner is more than 98 percent; the soil conditioner has the mercury content of less than 5mg/kg, the arsenic content of less than 10mg/kg, the cadmium content of less than 10mg/kg, the lead content of less than 50mg/kg and the chromium content of less than 50 mg/kg.
In order to further illustrate the effect of the soil conditioner prepared by the invention, the prepared product is subjected to field experiments, and the experimental arrangement is as follows:
test one:
1. test site: the Yiyuanjianglianwangchai in the city of shangjinjing of Yunnan province, the test crop is potato 'Qingshu No. 9', the soil is red soil, and the basic data are as follows:
| sample identification | PH | Organic matter (g/kg) | Hydrolyzable Nitrogen (mg/kg) | Available phosphorus (mg/kg) | Quick-acting potassium (mg/kg) |
| Soil(s) | 5.16 | 54.4 | 60 | 7.3 | 146 |
2. The test treatments were as follows:
the test adopts a random block arrangement test design, three treatments are designed and repeated for three times, the area of a cell (2.40m multiplied by 8.33m), the row spacing of the planted plants is 20cm multiplied by 20cm, 500 plants are planted in each cell, 16667 plants are planted per mu, protective rows are arranged around the cells, and watering is carried out according to a conventional method.
Treatment 1: 40kg of calcium superphosphate per mu is used as base fertilizer hole application and blank;
and (3) treatment 2: 40kg of calcium superphosphate per mu is used as base fertilizer for hole application, and 10 kg of compound fertilizer 15-15-15 per mu is used as additional fertilizer for hole application;
and (3) treatment: 40kg of calcium superphosphate per mu is used as base fertilizer for hole application, 300 kg of soil conditioner per mu is used as base fertilizer for scattered application, 10 kg of compound fertilizer per mu is used as top dressing for hole application, 15-15-15.
3. The results of the tests are shown in the table
By carrying out variance analysis on the yield of the 'sweet potato No. 9' of different processed potatoes, the yield difference between the repetitions is not significant, and the yield difference between the processing is obvious and reaches a very significant level. As can be seen by comparing the yield of each treatment by the least significant difference method, the yield difference between the treatment 3 and the treatment 1 is significant; the difference in yield between treatment 3 and treatment 2 was also significant.
Experiments show that the potato 'sweet potato No. 9' has the effect of increasing the yield after the soil conditioner is applied.
4. Soil changes before and after the test are as follows:
the test shows that the organic matter content is obviously increased after the soil conditioner is applied to the soil.
And (2) test II:
1. test site: the experimental crop of the nyu nianyang mountain in the city of the disc of Guizhou province is potato 'sweet potato No. 9', the soil is yellow soil, and the basic data are as follows:
2. the test treatments were as follows:
the test adopts a random block arrangement test design, three treatments are designed and repeated for three times, the area of a cell (2.40m multiplied by 8.33m), the row spacing of the planted plants is 20cm multiplied by 20cm, 500 plants are planted in each cell, 16667 plants are planted per mu, protective rows are arranged around the cells, and watering is carried out according to a conventional method.
Treatment 1: 40kg of calcium superphosphate per mu is used as base fertilizer hole application and blank;
and (3) treatment 2: 40kg of calcium superphosphate per mu is used as base fertilizer for hole application, and 10 kg of compound fertilizer 15-15-15 per mu is used as additional fertilizer for hole application;
and (3) treatment: 40kg of calcium superphosphate per mu is used as base fertilizer for hole application, 300 kg of soil conditioner per mu is used as base fertilizer for scattered application, 10 kg of compound fertilizer per mu is used as top dressing for hole application, 15-15-15.
3. The results of the tests are shown in the table
By carrying out variance analysis on the yield of the 'sweet potato No. 9' of different processed potatoes, the yield difference between the repetitions is not significant, and the yield difference between the processing is obvious and reaches a very significant level. As can be seen by comparing the yield of each treatment by the least significant difference method, the yield difference between the treatment 3 and the treatment 1 is significant; the difference in yield between treatment 3 and treatment 2 was significant.
Experiments show that the potato 'Qingshu No. 9' has certain yield increasing effect after being applied with the soil conditioner.
4. Soil changes before and after the test are as follows:
the test shows that the organic matter content of the soil is increased after the soil conditioner is applied to the soil.
And (3) test III:
1. test site: the test crop is potato '9 # green potato', the soil is sandy loam, and the basic data are as follows:
2. the test treatments were as follows:
the test adopts a random block arrangement test design, three treatments are designed and repeated for three times, the area of a cell (2.40m multiplied by 8.33m), the row spacing of the planted plants is 20cm multiplied by 20cm, 500 plants are planted in each cell, 16667 plants are planted per mu, protective rows are arranged around the cells, and watering is carried out according to a conventional method.
Treatment 1: 40kg of calcium superphosphate per mu is used as base fertilizer hole application and blank;
and (3) treatment 2: 40kg of calcium superphosphate per mu is used as base fertilizer for hole application, and 10 kg of compound fertilizer 15-15-15 per mu is used as additional fertilizer for hole application;
and (3) treatment: 40kg of calcium superphosphate per mu is used as base fertilizer for hole application, 300 kg of soil conditioner per mu is used as base fertilizer for scattered application, 10 kg of compound fertilizer per mu is used as top dressing for hole application, 15-15-15.
3. The results of the tests are shown in the table
By carrying out variance analysis on the yield of the 'sweet potato No. 9' of different processed potatoes, the yield difference between the repetitions is not significant, and the yield difference between the processing is obvious and reaches a very significant level. As can be seen by comparing the yield of each treatment by the least significant difference method, the yield difference between the treatment 3 and the treatment 1 is significant; the difference in yield between treatment 3 and treatment 2 was significant.
Experiments show that the potato 'Qingshu No. 9' has certain yield increasing effect after being applied with the soil conditioner.
4. Soil changes before and after the test are as follows:
the test shows that the organic matter content of the soil is increased after the soil conditioner is applied to the soil.
Through the tests of the same fertilization method on different places, different soils and the same crop, the soil conditioner disclosed by the invention is proved to improve the soil, improve the organic matters of the soil, improve the nutrient absorption of the crop and improve the alkaline soil property, and the yield of the crop can be obviously improved by matching with the inorganic fertilizer for application.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A lignite mineral source soil conditioner is characterized in that: by weight, the content of organic matters in the soil conditioner is more than 30%, the content of humic acid is more than 7%, and the water content is less than 30%.
2. The lignite mine source soil conditioner as claimed in claim 1, wherein: the soil conditioner is prepared by taking a lignite ore source as a raw material through an oxygen-deficient high-temperature cracking process; the soil conditioner has an organic matter content of more than 40% and a humic acid content of more than 8%.
3. The lignite mine source soil conditioner as claimed in claim 1, wherein: the particle size of the soil conditioner is less than 3 mm, the organic matter content of the soil conditioner is more than 45%, and the humic acid content is more than 7%.
4. The lignite mine source soil conditioner as claimed in claim 1, wherein: the soil conditioner is actually nontoxic when evaluated by the acute oral toxicity grading standard, and the soil conditioner is acidic.
5. The lignite mine source soil conditioner as claimed in claim 1, wherein: the death rate of roundworm eggs in the soil conditioner is more than 98 percent; the soil conditioner has the mercury content of less than 5mg/kg, the arsenic content of less than 10mg/kg, the cadmium content of less than 10mg/kg, the lead content of less than 50mg/kg and the chromium content of less than 50 mg/kg.
6. A preparation method of a lignite mineral source soil conditioner is characterized by comprising the following steps: crushing the raw material of the ore source lignite, and then sending the crushed raw material into a hot blast stove, wherein the temperature in the hot blast stove is 500-1300 ℃, the oxygen content in the hot blast stove is less than 5%, carrying out oxygen-deficient pyrolysis on the lignite in the hot blast stove, and cooling, dehydrating and crushing the lignite subjected to the oxygen-deficient pyrolysis to obtain the soil conditioner.
7. The method for preparing the lignite mineral source soil conditioner according to claim 6, wherein the lignite mineral source soil conditioner comprises the following steps: crushing the ore source lignite raw material to the particle size of less than 1 cm, and then sending the crushed raw material into a hot blast stove.
8. The method for preparing the lignite mineral source soil conditioner according to claim 6, wherein the lignite mineral source soil conditioner comprises the following steps: the lignite is cooled by discharging to a water tank for water cooling or discharging to a slag cooler for air cooling.
9. The method for preparing the lignite mineral source soil conditioner according to claim 6, wherein the lignite mineral source soil conditioner comprises the following steps: dehydrating the cooled lignite until the water content is below 30%;
and crushing the dehydrated material to a particle size of less than 3 mm.
10. The method for preparing the lignite mineral source soil conditioner according to claim 6, wherein the lignite mineral source soil conditioner comprises the following steps: the brown coal raw material is from grass, moss or woody carbon-making plants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010544024.9A CN111607407A (en) | 2020-06-15 | 2020-06-15 | Lignite mineral source soil conditioner and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010544024.9A CN111607407A (en) | 2020-06-15 | 2020-06-15 | Lignite mineral source soil conditioner and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111607407A true CN111607407A (en) | 2020-09-01 |
Family
ID=72198845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010544024.9A Pending CN111607407A (en) | 2020-06-15 | 2020-06-15 | Lignite mineral source soil conditioner and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111607407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149777A (en) * | 2021-04-25 | 2021-07-23 | 中国热带农业科学院环境与植物保护研究所 | Secondary salinization soil conditioner for greenhouse vegetable field and application of secondary salinization soil conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732274A (en) * | 2012-07-17 | 2012-10-17 | 苏州劲仑能源科技有限公司 | Brown coal dry-distillation method using coal hot air furnace to supply heat |
| CN103074093A (en) * | 2013-01-30 | 2013-05-01 | 南京工业大学 | Integral process and system for directly drying and pyrolyzing lignite |
| CN105461369A (en) * | 2015-10-12 | 2016-04-06 | 于春开 | Preparation method and application of biochar bacterium fertilizer |
| CN108659909A (en) * | 2018-04-04 | 2018-10-16 | 云南中翼鼎东能源科技开发有限公司 | A kind of efficient upgrading system of lignite and its method for upgrading of sub-prime classification |
| CN109772264A (en) * | 2019-02-20 | 2019-05-21 | 谭祖陆 | A kind of preparation method of flue gas desulfurization activated coke |
| AU2019204665A1 (en) * | 2009-06-04 | 2019-07-18 | Oms Investments, Inc. | Plant growing material |
| CN110903135A (en) * | 2019-11-26 | 2020-03-24 | 云南中翼鼎东投资集团生物科技开发有限公司 | Organic-inorganic compound fertilizer and preparation method thereof |
-
2020
- 2020-06-15 CN CN202010544024.9A patent/CN111607407A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2019204665A1 (en) * | 2009-06-04 | 2019-07-18 | Oms Investments, Inc. | Plant growing material |
| CN102732274A (en) * | 2012-07-17 | 2012-10-17 | 苏州劲仑能源科技有限公司 | Brown coal dry-distillation method using coal hot air furnace to supply heat |
| CN103074093A (en) * | 2013-01-30 | 2013-05-01 | 南京工业大学 | Integral process and system for directly drying and pyrolyzing lignite |
| CN105461369A (en) * | 2015-10-12 | 2016-04-06 | 于春开 | Preparation method and application of biochar bacterium fertilizer |
| CN108659909A (en) * | 2018-04-04 | 2018-10-16 | 云南中翼鼎东能源科技开发有限公司 | A kind of efficient upgrading system of lignite and its method for upgrading of sub-prime classification |
| CN109772264A (en) * | 2019-02-20 | 2019-05-21 | 谭祖陆 | A kind of preparation method of flue gas desulfurization activated coke |
| CN110903135A (en) * | 2019-11-26 | 2020-03-24 | 云南中翼鼎东投资集团生物科技开发有限公司 | Organic-inorganic compound fertilizer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 林而达等: "《低碳农林业》", 31 December 2015, 中国环境出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149777A (en) * | 2021-04-25 | 2021-07-23 | 中国热带农业科学院环境与植物保护研究所 | Secondary salinization soil conditioner for greenhouse vegetable field and application of secondary salinization soil conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107142112B (en) | Biochar soil conditioner and preparation method thereof | |
| CN108130094B (en) | Sandy soil conditioner and application thereof | |
| CN109985891B (en) | Acidic tailing soil treatment method | |
| CN102321484A (en) | Organic environmentally-friendly soil conditioner for improving acidified or acid soil | |
| CN103058725A (en) | Method for quickly producing bio-organic fertilizer by using tobacco stalks and bio-organic fertilizer | |
| CN106518529A (en) | Compound biochar-based slow-release fertilizer and application method thereof | |
| CN102173942B (en) | Calcium-magnesium-containing organic mineral fertilizer and preparation method thereof | |
| CN103922866A (en) | Soil conditioner and preparation method thereof | |
| CN108059569B (en) | Ecological organic soil conditioner and preparation method thereof | |
| CN106416799A (en) | Vegetable culture medium | |
| CN111517890A (en) | Biochar-based fertilizer and preparation method and application thereof | |
| Naresh et al. | Effects of tillage, residue and nutrient management on soil organic carbon dynamics and its fractions, soil aggregate stability and soil carbon sequestration: A review | |
| CN111978118A (en) | Preparation and application methods of tea garden biomass carbon rod organic fertilizer | |
| CN107673902A (en) | It is a kind of to match somebody with somebody fertile auxiliary material and its production method with expelling parasite and slow releasing function | |
| CN101289339A (en) | Multiple organic humic acid spraying liquid fertilizer and preparation method | |
| CN108147916A (en) | A kind of phosphorus element fertilizer synergist and preparation method thereof | |
| CN111607407A (en) | Lignite mineral source soil conditioner and preparation method thereof | |
| CN110172350B (en) | Acid soil conditioner, preparation method thereof and method for improving acid soil | |
| CN109628106B (en) | Facility soil conditioner and application thereof | |
| CN110981636A (en) | Sand land water-saving fertilizer-maintaining material based on homologous plants and application thereof | |
| CN111635764A (en) | Composite matrix for ecological restoration and preparation method thereof | |
| CN104892143A (en) | Biological organic fertilizer and preparation method thereof | |
| CN108901753A (en) | A kind of crop seedling matrix and preparation method thereof | |
| CN108522217A (en) | A kind of vegetable seedling substrate and preparation method thereof | |
| Guo et al. | Effects of insect frass and distiller’s grains on physicochemical properties of saline alkali soil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200901 |
|
| RJ01 | Rejection of invention patent application after publication |