CN114982414A - Method for improving carbon sequestration potential of soil by using organic fertilizer - Google Patents

Method for improving carbon sequestration potential of soil by using organic fertilizer Download PDF

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Publication number
CN114982414A
CN114982414A CN202210712347.3A CN202210712347A CN114982414A CN 114982414 A CN114982414 A CN 114982414A CN 202210712347 A CN202210712347 A CN 202210712347A CN 114982414 A CN114982414 A CN 114982414A
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China
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soil
organic fertilizer
carbon sequestration
improving
parts
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CN202210712347.3A
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Chinese (zh)
Inventor
宋丹
王吉磊
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Liaoning Agricultural Development Service Center
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Liaoning Agricultural Development Service Center
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Priority to CN202210712347.3A priority Critical patent/CN114982414A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00—Methods for working soil
    • A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C21/00—Methods of fertilising, sowing or planting
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D1/00—Fertilisers containing potassium
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Soil Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Environmental Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Pest Control & Pesticides (AREA)
  • Mechanical Engineering (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a method for improving soil carbon sequestration potential by using an organic fertilizer, which belongs to the technical field of soil improvement and specifically comprises the following steps: 1) ridging in a soil carbon sequestration area, then burying biochar into furrows, applying an organic fertilizer, and then planting green manure crops; 2) after the green manure crops are harvested, the straws are crushed, mixed with organic fertilizer and then spread on the ground, and the soil is turned deeply, so that the crops can be planted. According to the invention, the organic fertilizer is matched with the biochar and the green manure crops for use, so that the carbon sequestration surface area of soil aggregates is increased, the carbon sequestration capacity of soil is improved, the soil fertility and air permeability are improved, the growth of the crops is facilitated, and the yield of the crops can be obviously increased.

Description

Method for improving carbon sequestration potential of soil by using organic fertilizer
Technical Field
The invention relates to the field of soil improvement, in particular to a method for improving the carbon sequestration potential of soil by using an organic fertilizer.
Background
The soil carbon sink is an important path for reducing carbon emission and relieving global climate change. In the global carbon cycle, the soil carbon reservoir is 5 times as large as that of forests and other vegetation, and 3 times as large as that of atmospheric air. 60% of carbon in the soil carbon reservoir exists in soil in the form of organic matters, and the huge soil carbon storage amount is CO in the atmosphere 2 The level of (c) has a significant effect.
However, the basic national situation of China is that many people have less land, and the rapid urbanization process causes a great reduction in the cultivated land and faces the dilemma of cultivated land loss and quality reduction. The newly reclaimed farmland generally has the problem of low soil fertility, 80 percent of original organic carbon of surface soil is mineralized and decomposed in the soil disturbance process, and the organic carbon reserve of the soil is extremely low and is only 40-60 percent of that of a normal farmland.
Therefore, how to provide a method capable of effectively improving the carbon sequestration potential of soil is a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a method for improving the carbon sequestration potential of soil by utilizing an organic fertilizer, so as to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
a method for improving the carbon sequestration potential of soil by using an organic fertilizer comprises the following steps:
1) ridging a soil carbon sequestration area, burying biochar into furrows, applying an organic fertilizer, and planting green manure crops;
2) after the green manure crops are harvested, the straws are crushed, mixed with organic fertilizer and then spread on the ground, and the soil is turned deeply, so that the crops can be planted.
Preferably, the organic fertilizer in the steps 1) and 2) comprises the following raw materials in parts by weight:
20-55 parts of cow dung, 10-35 parts of sheep dung, 60-80 parts of plant straws, 15-20 parts of plant ash, 10-15 parts of bean cakes and 1-2 parts of microbial bacteria.
Preferably, the microorganism bacteria comprise bacillus thuringiensis and nocardia, and the ratio of the inoculation amount of the bacillus thuringiensis to the inoculation amount of the nocardia is (3-7): 1.
Preferably, the application amount of the organic fertilizer in the step 1) is 65-80kg per mu.
Preferably, the ridge height of the ridges in the step 1) is 10-25cm, the bottom width is 55-65cm, and the ridge distance is 50-60 cm.
Preferably, the biochar in the step 1) is prepared by taking straws as raw materials; the green manure crops comprise one or more of vetch, alfalfa, tamarisk, sesbania and miscanthus.
Preferably, the mixing ratio of the straws and the organic fertilizer in the step 2) is 1 (5-7).
Preferably, the thickness of the flat sprinkling in the step 2) is 5-10 cm; the deep ploughing depth is 20-50 cm.
Preferably, the method further comprises the following steps:
3) after harvesting the crops in the previous season every year, flatly spraying organic fertilizer on the ground surface, deeply turning to soil, and then planting the crops in the next season.
Preferably, the thickness of the flat-sprinkling organic fertilizer in the step 3) is 8-13 cm; the deep ploughing depth is 20-50 cm.
The invention discloses a method for improving soil carbon sequestration potential by using an organic fertilizer, which improves the soil structure, increases the carbon sequestration surface area of soil aggregates, increases fertility, loosens the soil, improves the soil permeability, is beneficial to the update of crop roots and improves the carbon sequestration capacity of the soil. The simple substance carbon in the charcoal powder used in the invention can be fixed in the soil basically and irreversibly, thus increasing the carbon sink of the soil, and moreover, the charcoal has fluffy characteristic, so that the porosity structure of the soil can be increased rapidly, and the ventilation effect of the soil is improved. In addition, the green manure crops planted in the invention can provide fertilizer sources for crops and improve soil fertility, and after the straws and the organic fertilizer are deeply turned into the soil, the microorganisms in the organic fertilizer can promote the straws to be thoroughly decomposed, so that soil organic matters are further improved, the carbon sequestration capacity of the soil is improved, and the growth of the crops is facilitated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The present invention will be described in further detail with reference to specific embodiments in order to make the above objects, features and advantages more apparent and understandable.
A method for improving the carbon sequestration potential of soil by using an organic fertilizer comprises the following steps:
1) ridging in a soil carbon sequestration area, then burying biochar into furrows, applying an organic fertilizer, and then planting green manure crops;
2) after the green manure crops are harvested, the straws are crushed, mixed with organic fertilizer and then spread on the ground, and the soil is turned deeply, so that the crops can be planted.
In some embodiments of the present invention, the organic fertilizer in steps 1) and 2) comprises the following raw materials in parts by weight:
20-55 parts of cow dung, 10-35 parts of sheep dung, 60-80 parts of plant straws, 15-20 parts of plant ash, 10-15 parts of bean cakes and 1-2 parts of microbial bacteria. The conventional organic fertilizer has certain effect on improving the carbon sequestration potential of soil, but the further improvement is not easy on the basis, and the inventor finds that the improvement effect of different types of organic fertilizers on the carbon sequestration potential of soil is far from each other through experimental research, the different kinds of organic fertilizers are compounded in different proportions, so that the effect of improving the carbon fixation effect of the soil is far from each other, therefore, the invention creatively selects 20-55 parts of cow dung, 10-35 parts of sheep dung, 60-80 parts of plant straws, 15-20 parts of plant ash, 10-15 parts of bean cakes and 1-2 parts of microbial bacteria to form the compound organic fertilizer, when used alone, the organic fertilizer has no obvious difference with the conventional organic fertilizer of the same type in improving the soil carbon fixation effect, but when the fertilizer is used together with biochar and green manure crops, the soil carbon sequestration effect is obviously improved.
In some embodiments of the invention, the microorganism comprises bacillus thuringiensis and nocardia, and the ratio of the inoculum size of bacillus thuringiensis to nocardia is (3-7): 1.
The present invention is not particularly limited in the source of the bacterial species, and the bacterial species may be isolated by itself or purchased directly, and the technical effects of the present invention can be achieved as long as the ratio of the bacterial species to the inoculum size of Bacillus thuringiensis and Nocardia is (3-7): 1. In some embodiments of the invention, it is preferred to purchase Bacillus thuringiensis and Nocardia directly.
In some embodiments of the invention, the application amount of the organic fertilizer in the step 1) is 65-80kg per mu.
In some embodiments of the invention, the ridges in step 1) have a ridge height of 10-25cm, a bottom width of 55-65cm, and a ridge spacing of 50-60 cm.
If not specifically stated, the present invention does not specifically limit the type of the biochar, and optionally, the biochar is prepared from crop straws or forest, wood and grass, and in some embodiments of the present invention, the biochar in step 1) is prepared from straws as a raw material; the green manure crops comprise one or more of vetch, alfalfa, tamarisk, sesbania and miscanthus.
In some embodiments of the invention, the mixing ratio of the straws and the organic fertilizer in the step 2) is 1 (5-7).
If not specifically stated, the thickness of the flat sprinkling fertilizer is not particularly limited by the invention, and the conventional application amount of the organic fertilizer is met, and in some embodiments of the invention, the thickness of the flat sprinkling fertilizer in the step 2) is 5-10 cm; the depth of the deep ploughing is not particularly limited as long as the conventional application mode of the organic fertilizer is satisfied, and in some embodiments, the depth of the deep ploughing is preferably 20-50 cm.
In some embodiments of the invention, the method for improving the carbon sequestration potential of soil by using the organic fertilizer further comprises the following steps:
3) after harvesting the crops of the previous season every year, organic fertilizer is horizontally sprayed on the ground surface and deeply ploughed to soil, and then the crops of the next season are planted.
The thickness of the flat spraying fertilizer is not particularly limited if not specifically stated, and the conventional application amount of the organic fertilizer is met, and in some embodiments of the invention, the thickness of the flat spraying organic fertilizer in the step 3) is 8-13 cm; the present invention has no particular limitation on the depth of the deep ploughing, unless otherwise specified, as long as the conventional application manner of the organic fertilizer is satisfied, and in some embodiments of the present invention, the depth of the deep ploughing in step 3) is preferably 20 to 50 cm.
The technical solution of the present invention will be described in detail below with reference to specific examples. The straw biochar in the following examples is biochar obtained by calcining corn straws. The specific preparation method is conventional technology, and is not described herein. The cow dung and the sheep dung are dry dung obtained by conventional sun-curing fermentation, and the specific method adopts a method well known in the field, is not the protection point of the invention, and is not described herein.
Example 1
A method for improving the carbon sequestration potential of soil by using an organic fertilizer comprises the following steps:
1) preparing an organic fertilizer: uniformly mixing 32 parts of cow dung, 23 parts of sheep dung, 70 parts of plant straws, 17 parts of plant ash, 13 parts of bean cakes, 1 part of bacillus thuringiensis and 0.2 part of nocardia, and then carrying out aerobic fermentation at the temperature of lower than 60 ℃ until the temperature is not increased any more to obtain an organic fertilizer;
2) ridging in a soil carbon sequestration area, wherein the height of each ridge is 10-25cm, the bottom width is 55-65cm, and the ridge interval is 50-60 cm;
3) burying straw biochar into furrows during ridging, then applying organic fertilizer, and planting vetch, alfalfa, tamarix chinensis, sesbania and Chinese silvergrass in the last 3-4 months;
4) harvesting after the green manure crops are mature, crushing the straws, mixing the crushed straws with organic fertilizers according to the proportion of 1:5, flatly spraying the mixture on the ground until the thickness is 5-10cm, deeply turning the soil for 20-50cm, planting corns in the middle and late April, and carrying out conventional field management.
Example 2
A method for improving the carbon sequestration potential of soil by using organic fertilizer is different from the method in the embodiment 1:
the organic fertilizer in the step 1) comprises the following raw materials in parts by weight:
20 parts of cow dung, 12 parts of sheep dung, 63 parts of plant straws, 15 parts of plant ash, 10 parts of bean cakes, 0.75 part of bacillus thuringiensis and 0.25 part of nocardia.
Example 3
A method for improving the carbon sequestration potential of soil by using an organic fertilizer is different from that in the embodiment 1:
the organic fertilizer in the step 1) comprises the following raw materials in parts by weight:
45 parts of cow dung, 17 parts of sheep dung, 67 parts of plant straws, 18 parts of plant ash, 11 parts of bean cakes, 1.75 parts of bacillus thuringiensis and 0.25 part of nocardia.
Example 4
A method for improving the carbon sequestration potential of soil by using organic fertilizer is different from the method in the embodiment 1:
the organic fertilizer in the step 1) comprises the following raw materials in parts by weight:
55 parts of cow dung, 33 parts of sheep dung, 80 parts of plant straws, 20 parts of plant ash, 15 parts of bean cakes, 1.75 parts of bacillus thuringiensis and 0.25 part of nocardia.
Comparative example 1
A soil treatment method, different from example 1:
the organic fertilizer is replaced by urea and nitrogen-phosphorus-potassium compound fertilizer.
Comparative example 2
A soil treatment method, different from example 1:
biochar is not added in the step 3).
Comparative example 3
A soil treatment method, different from example 1:
no green manure crop is planted in the step 3), and the step 4) does not include a step of applying organic fertilizer.
Technical effects
The first year corn yield and soil carbon fixation after harvesting of the planted corn in examples 1-4 and comparative example 1 are shown in table 1:
amount of solid carbon (t. hm) -2 ·a -1 ) Yield (kg 667 m) -2 )
Example 1 7.53 859
Example 2 7.16 837
Example 3 7.22 841
Example 4 7.45 828
Comparative example 1 3.05 630
Comparative example 2 5.63 723
Comparative example 3 4.11 715
According to the embodiments, experiments prove that the organic fertilizer is matched with the biochar and the green manure crops for utilization, so that the soil is used for carbon fixationThe amount reaches 7.16-7.53 t.hm -2 ·a -1 Is obviously higher than that of comparative examples 1-3; and the yield of the corn reaches 828-859 kg/mu. Therefore, the method provided by the invention can effectively improve the carbon sequestration potential of the soil and obviously provide the crop yield.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (10)

1. A method for improving the carbon sequestration potential of soil by using an organic fertilizer is characterized by comprising the following steps:
1) ridging a soil carbon sequestration area, burying biochar into furrows, applying an organic fertilizer, and planting green manure crops;
2) after the green manure crops are harvested, the straws are crushed, mixed with the organic fertilizer and then spread on the ground, and then the soil is turned deeply, so that the crops can be planted.
2. The method for improving the carbon sequestration potential of soil by using the organic fertilizer as claimed in claim 1, wherein the organic fertilizer in the steps 1) and 2) comprises the following raw materials in parts by weight:
20-55 parts of cow dung, 10-35 parts of sheep dung, 60-80 parts of plant straws, 15-20 parts of plant ash, 10-15 parts of bean cakes and 1-2 parts of microbial bacteria.
3. The method for improving the carbon sequestration potential of soil by utilizing the organic fertilizer as claimed in claim 2, wherein the microorganism bacteria comprise bacillus thuringiensis and nocardia, and the inoculation amount ratio of the bacillus thuringiensis to the nocardia is (3-7): 1.
4. The method for improving the carbon sequestration potential of soil by using the organic fertilizer as claimed in claim 1, wherein the application amount of the organic fertilizer in the step 1) is 65-80kg per mu.
5. The method for improving the carbon sequestration potential of soil by using the organic fertilizer as claimed in claim 1, wherein in the step 1), the ridge height of the ridge is 10-25cm, the bottom width is 55-65cm, and the ridge spacing is 50-60 cm.
6. The method for improving the carbon sequestration potential of soil by using the organic fertilizer as claimed in claim 1, wherein the biochar in the step 1) is prepared by using straws as a raw material; the green manure crops comprise one or more of vetch, alfalfa, tamarisk, sesbania and miscanthus.
7. The method for improving the carbon sequestration potential of the soil by using the organic fertilizer as claimed in claim 1, wherein the mixing ratio of the straw and the organic fertilizer in the step 2) is 1 (5-7).
8. The method for improving the carbon sequestration potential of the soil by utilizing the organic fertilizer as claimed in claim 1, wherein the thickness of the horizontal sprinkling in the step 2) is 5-10 cm; the deep ploughing depth is 20-50 cm.
9. The method for improving the carbon sequestration potential of soil by using the organic fertilizer as claimed in claim 1, further comprising the following steps of:
3) after harvesting the crops of the previous season every year, organic fertilizer is horizontally sprayed on the ground surface and deeply ploughed to soil, and then the crops of the next season are planted.
10. The method for improving the carbon sequestration potential of soil by using the organic fertilizer as claimed in claim 9, wherein the thickness of the horizontally sprayed organic fertilizer in the step 3) is 8-13 cm; the deep ploughing depth is 20-50 cm.
CN202210712347.3A 2022-06-22 2022-06-22 Method for improving carbon sequestration potential of soil by using organic fertilizer Pending CN114982414A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116584327A (en) * 2023-07-17 2023-08-15 中国农业科学院农业资源与农业区划研究所 Method for reducing carbon footprint in rice production by cooperation of green manure and sodium 2-chloroethyl sulfonate
TWI822643B (en) * 2022-10-12 2023-11-11 新生永續顧問有限公司 Planting method for increasing soil organic matter and carbon sinks

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CN105175180A (en) * 2015-08-07 2015-12-23 中国科学院东北地理与农业生态研究所 Method for improving saline alkali land by combination of biochar with organic fertilizer
CN106576486A (en) * 2016-12-27 2017-04-26 南京林业大学 Method of converting severely lost soil on a surface layer of a mudflat into a forest land in a quick and highly efficient manner
CN107509406A (en) * 2017-07-31 2017-12-26 山西省农业科学院农业环境与资源研究所 A kind of quick method for improving abandoned location of industry and mining soil carbon sequestration capacity using
US20210032538A1 (en) * 2019-08-01 2021-02-04 Institute Of Geochemistry, Chinese Academy Of Sciences Method for improving tobacco-planting soil by using biochar

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104641756A (en) * 2015-02-12 2015-05-27 山西省农业科学院农业环境与资源研究所 Method for increasing carbon sequestration capacity of soil of mining area
CN105175180A (en) * 2015-08-07 2015-12-23 中国科学院东北地理与农业生态研究所 Method for improving saline alkali land by combination of biochar with organic fertilizer
CN106576486A (en) * 2016-12-27 2017-04-26 南京林业大学 Method of converting severely lost soil on a surface layer of a mudflat into a forest land in a quick and highly efficient manner
CN107509406A (en) * 2017-07-31 2017-12-26 山西省农业科学院农业环境与资源研究所 A kind of quick method for improving abandoned location of industry and mining soil carbon sequestration capacity using
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI822643B (en) * 2022-10-12 2023-11-11 新生永續顧問有限公司 Planting method for increasing soil organic matter and carbon sinks
CN116584327A (en) * 2023-07-17 2023-08-15 中国农业科学院农业资源与农业区划研究所 Method for reducing carbon footprint in rice production by cooperation of green manure and sodium 2-chloroethyl sulfonate
CN116584327B (en) * 2023-07-17 2024-01-30 中国农业科学院农业资源与农业区划研究所 Method for reducing carbon footprint in rice production by cooperation of green manure and sodium 2-chloroethyl sulfonate

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Application publication date: 20220902

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