CN110922254A - Agricultural rare earth containing precipitation inhibitor and preparation method and application thereof - Google Patents

Agricultural rare earth containing precipitation inhibitor and preparation method and application thereof Download PDF

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CN110922254A
CN110922254A CN201911323339.4A CN201911323339A CN110922254A CN 110922254 A CN110922254 A CN 110922254A CN 201911323339 A CN201911323339 A CN 201911323339A CN 110922254 A CN110922254 A CN 110922254A
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rare earth
precipitation inhibitor
agricultural rare
agricultural
earth containing
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付洪斌
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C11/00—Other nitrogenous fertilisers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a preparation method of agricultural rare earth containing a precipitation inhibitor, which is characterized by comprising the following steps: the method comprises the following steps: (1) beneficial symbiotic thallus with the activity of more than or equal to 100 hundred million cfu/g and taking gamma polyglutamic acid as a carrier is used as an agricultural rare earth precipitation and precipitation inhibitor, the beneficial symbiotic thallus is liquid, and the pH value is less than 5; (2) mixing the agricultural rare earth precipitation inhibitor with agricultural rare earth; (3) and (3) mixing the product obtained in the step (2) with magnesium sulfate and zinc sulfate. The invention takes the gamma polyglutamic acid as a carrier, has water absorption capacity of 30-80 times, beneficial symbiotic bacteria are absorbed by the gamma polyglutamic acid and wrap the outer layer of agricultural rare earth, a saturated local environment with pH less than 5 is generated, the rare earth is inhibited from precipitating and separating out under the condition of alkaline soil, insoluble substances are converted into water-soluble effective nutrients which can be absorbed and utilized by plants, and the yield increasing effect of the invention reaches an extremely obvious level when the invention is applied to all crops, vegetables and various economic crops.

Description

Agricultural rare earth containing precipitation inhibitor and preparation method and application thereof
Technical Field
The invention belongs to the technical field of rare earth agriculture, and particularly relates to agricultural rare earth containing a precipitation inhibitor, and a preparation method and application thereof.
Background
The rare earth agricultural technology has a development history of decades in China, and the application technology level goes ahead of the world. As is well known, rare earth chlorides (Ho) for agricultural use2O3/TREO) and agricultural rare earth nitrate [ RE (NO)3)3·6H2O]The rare earth salt is water-soluble and can be absorbed and utilized by crops, and the crops are stimulated to increase the large amount of N, P, K absorption and increase the yield. The solubility of the rare earth salts is related to the pH value, when the pH value of the aqueous solution is more than 6, the rare earth is completely precipitated and can not be hydrolyzed, namely, the rare earth salts can not be absorbed and utilized by crops; the root of the crop creates a local environment with pH less than 5 for the agricultural rare earth, the utilization rate of the agricultural rare earth is greatly improved, and the agricultural rare earth cultivation method becomes an innovative technology in the field of agricultural rare earth.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an agricultural rare earth containing a precipitation inhibitor and a preparation method and application thereof, wherein gamma polyglutamic acid is used as a carrier and has water absorption capacity of 30-80 times, beneficial symbiotic bacteria are absorbed by the gamma polyglutamic acid and wrap the outer layer of the agricultural rare earth, a saturated local environment with pH less than 5 is generated, the precipitation of the rare earth under the condition of alkaline soil is inhibited, insoluble substances are converted into water-soluble effective nutrients which can be absorbed and utilized by plants, and the yield increasing effect of the agricultural rare earth is extremely remarkable when the agricultural rare earth is applied to all crops, vegetables and various economic crops.
The technical scheme adopted by the invention is as follows: a preparation method of agricultural rare earth containing a precipitation inhibitor is characterized by comprising the following steps: the method comprises the following steps:
(1) the beneficial symbiotic thallus with the activity more than or equal to 100 hundred million cfu/g and using gamma polyglutamic acid as a carrier is used as an agricultural rare earth precipitation and precipitation inhibitor, the beneficial symbiotic thallus is liquid, the pH is less than 5, and the weight ratio of the gamma polyglutamic acid to the beneficial symbiotic thallus is 1: 20-30;
(2) the agricultural rare earth precipitation inhibitor is mixed with agricultural rare earth in a weight ratio of 1: 1-1.5.
(3) And (3) mixing the product obtained in the step (2) with magnesium sulfate and zinc sulfate, wherein the weight ratio is 6: 9-12: 4-7.
The final product prepared by the steps can be solid or can be dissolved in water with the pH value of 4-4.5 to form liquid.
The beneficial symbiotic thallus includes active photosynthetic bacteria, lactic acid bacteria, yeast, gram-positive actinomycetes and filamentous bacteria.
The gamma polyglutamic acid has a relative molecular weight of 2 ten thousand units and water absorption capacity of 30-80 times of the weight of the gamma polyglutamic acid.
The agricultural rare earth is agricultural nitric acid rare earth or agricultural chlorinated rare earth.
The agricultural rare earth containing the precipitation inhibitor is applied to all crops, vegetables and various cash crops, and specifically comprises the following components: the agricultural rare earth containing the precipitation inhibitor and the organic fertilizer are fermented and then used, the fermentation time is 15-25 days, and the agricultural rare earth containing the precipitation inhibitor and the organic fertilizer can be cured, wherein the mixing proportion of the agricultural rare earth containing the precipitation inhibitor and the organic fertilizer is 20-25 kg per mu and 2000-2500 kg per mu;
or the agricultural rare earth containing the precipitation inhibitor is mixed with an N/P/K inorganic fertilizer for use, and the consumption per mu of the agricultural rare earth containing the precipitation inhibitor is 20-25 kg;
or the agricultural rare earth containing the precipitation inhibitor can be dissolved into liquid to be directly used, and the daily consumption of the agricultural rare earth containing the precipitation inhibitor is 20-25 kg per mu.
The application mechanism is as follows: the water absorption characteristic that the agricultural gamma polyglutamic acid is more than 1: 30-80 times is utilized to be used as a carrier of beneficial symbiotic bacteria such as active photosynthetic bacteria, lactic acid bacteria, saccharomycetes, gram-positive actinomycetes and the like to become an agricultural rare earth precipitation inhibitor. According to the material mixing step of the invention, after the beneficial symbiotic bacteria of liquid are mixed with the agricultural gamma polyglutamic acid, the water content of the beneficial symbiotic bacteria with the pH value less than 4 is absorbed by the gamma polyglutamic acid, and after the beneficial symbiotic bacteria are mixed with the agricultural rare earth, the agricultural rare earth is wrapped by the precipitation inhibitor with the pH value less than 4. Under the combined action of the agricultural rare earth containing the precipitation inhibitor and the crop root acid, the pH value of the soil and the water which are touched by the crop root system is less than 5 through the ways of acidification, chelation, ion exchange, reduction and the like, thereby ensuring that the water-soluble rare earth is absorbed by the cropsHarvesting, transferring and utilizing the fertilizer, stimulating the crops to improve the absorption of nutrients such as N, P, K and the like, and further achieving the purpose of increasing the yield of the crops. The active photosynthetic bacteria, lactic acid bacteria, yeast, gram-positive actinomycetes, filamentous bacteria and other beneficial symbiotic bacteria using gamma polyglutamic acid as carrier have positive effects on activation and absorption of insoluble nutrients while being used as agricultural rare earth precipitation inhibitor, wherein P is inhibited2O5(phosphorus pentoxide), K2Degradation (precipitation) of O (potassium oxide). In the process, insoluble substances are converted into water-soluble effective nutrients which can be absorbed and utilized by plants through approaches of acidification, chelation, ion exchange, reduction and the like, so that the effectiveness and the utilization rate of the nutrients are improved.
Compared with the prior art, the invention has the beneficial effects that: the gamma polyglutamic acid is used as a carrier, and symbiotic thalli such as active photosynthetic bacteria, lactic acid bacteria, saccharomycetes, gram-positive actinomycetes, filamentous bacteria of a fermentation system and the like are used as the agricultural rare earth precipitation inhibitor, so that the utilization rate of agricultural rare earth is greatly improved, and the additive effect of crops on the large-amount absorption of N, P, K is promoted. According to the atomic energy of Chinese academy of agricultural sciences15N、32P、141Trace marker assay of Ce, N (Nitrogen), P2O5(phosphorus pentoxide), K2The utilization rate of O (potassium oxide) is respectively increased by 47.56%, 13.68% and 63.48%. By verifying that crops such as corn, rice, sorghum, wheat, sugarcane, beet, cotton, peanut, soybean, silage corn, cucumber, Chinese cabbage, tomato, grape and the like exceed ten million mu of crops for 5 continuous years, the average yield is increased by 16.4%. Wherein the rice has a polished rice rate increased by 4.66% and a protein content increased by 3.37%; the contents of protein, lysine and starch in the corn kernels are respectively increased by 0.76%, 8.82% and 1.11%; the sugar contents of the sugarcane and the beet are respectively increased by 2.84 percent and 2.35 percent; the yield of the grapes is increased by 53 percent, the yield of the cucumbers is increased by 29 percent, and the yield is increased to an extremely obvious level. The beneficial symbiotic thallus, namely the beneficial symbiotic thallus is matched with the gamma polyglutamic acid to be used as an agricultural rare earth precipitation inhibitor, and simultaneously the beneficial symbiotic thallus has the functions of enhancing plant metabolism, promoting photosynthesis and strengthening a leaf protection film,the remarkable characteristic of promoting the root system to be developed can promote the mature period of the crops to be 5-10 days ahead. The method is the most effective intervention measure for solving the problem of insufficient accumulated temperature of crops.
Drawings
FIG. 1 is a flow chart of the preparation method of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The agricultural rare earth containing the precipitation inhibitor prepared by the invention can be mixed with organic fertilizer, can also be mixed with inorganic fertilizer containing N/P/K, and can also be dissolved into liquid to carry out drip irrigation, foliage spraying or following irrigation on crops.
Example 1
A preparation method of agricultural rare earth containing a precipitation inhibitor comprises the following steps:
(1) the beneficial symbiotic thallus with the activity more than or equal to 100 hundred million cfu/g and using gamma polyglutamic acid as a carrier is used as an agricultural rare earth precipitation and precipitation inhibitor, the beneficial symbiotic thallus is liquid, the pH value is less than 5, and the weight ratio of the gamma polyglutamic acid to the beneficial symbiotic thallus is 1: 20;
(2) mixing an agricultural rare earth precipitation inhibitor and agricultural rare earth nitrate according to a weight ratio of 1: 1;
(3) and (3) mixing the product obtained in the step (2) with magnesium sulfate and zinc sulfate according to the weight ratio of 6:9:7 to prepare the agricultural rare earth finished product containing the precipitation inhibitor.
Example 2
A preparation method of agricultural rare earth containing a precipitation inhibitor comprises the following steps:
(1) beneficial symbiotic thallus with the activity of more than or equal to 100 hundred million cfu/g and taking gamma polyglutamic acid as a carrier is used as an agricultural rare earth precipitation and precipitation inhibitor, wherein the beneficial symbiotic thallus is liquid, the pH value is less than 5, and the weight ratio of the gamma polyglutamic acid to the beneficial symbiotic thallus is 1: 30;
(2) mixing the agricultural rare earth precipitation inhibitor and agricultural rare earth chloride in a weight ratio of 1: 1.3;
(3) and (3) mixing the product obtained in the step (2) with magnesium sulfate and zinc sulfate, dissolving the mixture in water with the pH value of 4.5 to form a liquid state according to the weight ratio of 6:12:4, and preparing the agricultural rare earth finished product containing the precipitation inhibitor.
Example 3
A preparation method of agricultural rare earth containing a precipitation inhibitor comprises the following steps:
(1) the beneficial symbiotic thallus with the activity more than or equal to 100 hundred million cfu/g and using gamma polyglutamic acid as a carrier is used as an agricultural rare earth precipitation and precipitation inhibitor, the beneficial symbiotic thallus is liquid, the pH value is less than 5, and the weight ratio of the gamma polyglutamic acid to the beneficial symbiotic thallus is 1: 20;
(2) the agricultural rare earth precipitation inhibitor and the agricultural rare earth nitrate are mixed according to the weight ratio of 1: 1.1.
Example 4
A preparation method of agricultural rare earth containing a precipitation inhibitor comprises the following steps:
(1) beneficial symbiotic thallus with the activity of more than or equal to 100 hundred million cfu/g and taking gamma polyglutamic acid as a carrier is used as an agricultural rare earth precipitation and precipitation inhibitor, the beneficial symbiotic thallus is liquid, the pH value is less than 5, and the weight ratio of the gamma polyglutamic acid to the beneficial symbiotic thallus is 1: 23;
(2) the agricultural rare earth precipitation inhibitor and the agricultural rare earth chloride are mixed according to the weight ratio of 1:1.5, and are dissolved in water with the pH value of 4 to form liquid.
Example 5
According to the amount of fertilizer applied per mu, 20-25 kg of the agricultural rare earth containing the precipitation inhibitor prepared in the example 1 or 2 and 2-2.5 tons of organic fertilizer are mixed and fermented and cured for 20-25 days to form the green organic fertilizer. The soil hardening condition can be effectively improved, the soil is loosened, the soil air permeability is improved, the soil volume weight is reduced, the soil microbial activity is promoted, the soil fertilizer and water permeability is enhanced, the occurrence of diseases and insect pests such as blight, root rot, bacterial wilt, powdery mildew and the like is effectively inhibited, and the crop stress resistance is enhanced. The fertilizer is used as a base fertilizer, and additional fertilization is not needed in the growth process of crops.
Example 6
The agricultural rare earth containing the precipitation inhibitor prepared in the embodiment 3 or 4 is dissolved into liquid to be directly used, and the using amount of each mu of crops is 20-25 kilograms. Can be used for carrying out drip irrigation, foliage spraying or following irrigation on crops. Due to the action of the rare earth, the occurrence of plant diseases and insect pests can be effectively inhibited.
Example 7
A special fertilizer for wheat. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing a precipitation inhibitor is mixed with an inorganic fertilizer for use, wherein the N (nitrogen) is 11.2 kg, the P2O5 (phosphorus pentoxide) is 5kg, and the K2O (potassium oxide) is 11.6 kg, and the mixture is used as a base fertilizer or an additional fertilizer. Due to the action of the rare earth, the occurrence of plant diseases and insect pests can be effectively inhibited. The wheat (grain) is increased by 8.0% when the wheat (grain) is continuously used for 5 years.
Example 8
The special fertilizer for the corn. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing a precipitation inhibitor is mixed with an inorganic fertilizer for use, wherein 8 kg of N (nitrogen), 3.3 kg of P2O5 (phosphorus pentoxide) and 8 kg of K2O (potassium oxide) are used as a base fertilizer or an additional fertilizer. Due to the action of the rare earth, the occurrence of diseases can be effectively inhibited. The corn (kernel) can be continuously used for 5 years, and the average yield of the corn (kernel) is increased by 15.8 percent.
Example 9
Is a special fertilizer for grapes. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing a precipitation inhibitor is mixed with an inorganic fertilizer for use, the amount of N (nitrogen) is 11 kg, the amount of P2O5 (phosphorus pentoxide) is 4 kg, the amount of K2O (potassium oxide) is 15 kg, and the mixture is used as a base fertilizer before frost and an additional fertilizer after spring. Due to the action of the rare earth, the occurrence of diseases can be effectively inhibited. When the grape wine is continuously used for 5 years, the average yield of the grape (fresh weight) is increased to 53.6 percent.
Example 10
A special fertilizer for silage corns. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing a precipitation inhibitor is mixed with an inorganic fertilizer for use, wherein the N (nitrogen) is 5.3 kg, the P2O5 (phosphorus pentoxide) is 17 kg, and the K2O (potassium oxide) is 3.3 kg, and the mixture is used as a base fertilizer or an additional fertilizer. The green corn (fresh straw) can be continuously used for 5 years, and the average yield of the green corn (fresh straw) is increased by 10.6 percent.
Example 11
Is used as special fertilizer for cotton. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing a precipitation inhibitor is mixed with an inorganic fertilizer for use, wherein the N (nitrogen) is 8 kg, the P2O5 (phosphorus pentoxide) is 3 kg, and the K2O (potassium oxide) is 8.6 kg, and the mixture is used as a base fertilizer or an additional fertilizer. Due to the action of the rare earth, the occurrence of plant diseases and insect pests can be effectively inhibited. When the cotton is used for 5 years continuously, the average yield of the cotton (lint cotton) is increased by 9.2 percent.
Example 12
A special fertilizer for beet. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing a precipitation inhibitor is mixed with an inorganic fertilizer for use, wherein the N (nitrogen) is 13.3 kg, the P2O5 (phosphorus pentoxide) is 6 kg, and the K2O (potassium oxide) is 20 kg, and the mixture is used as a base fertilizer or an additional fertilizer. When the sugar beet is continuously used for 5 years, the average yield of the sugar beet (sugar production) is increased by 14.0 percent.
Example 13
A special fertilizer for tomato. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing the precipitation inhibitor is mixed with inorganic fertilizer for use, wherein the amount of N (nitrogen) is 9.3 kg, the amount of P2O5 (phosphorus pentoxide) is 4.3 kg, and the amount of K2O (potassium oxide) is 12.6 kg, and the mixture is used as base fertilizer or additional fertilizer. When the tomato is continuously used for 5 years, the average yield of the tomato (fresh weight) is increased by 20.4 percent.
Example 14
Is used as a special fertilizer for rice. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing the precipitation inhibitor is mixed with inorganic fertilizer for use, the amount of N (nitrogen) is 6.6 kg, the amount of P2O5 (phosphorus pentoxide) is 3.3 kg, and the amount of K2O (potassium oxide) is 10.6 kg, and the mixture is used as base fertilizer or additional fertilizer. Due to the action of the rare earth, the occurrence of plant diseases and insect pests can be effectively inhibited. When the rice is continuously used for 5 years, the average yield of the rice (grains) is increased by 13.4 percent.
Example 15
Is used as a special fertilizer for sugarcane. According to the amount of fertilizer applied per mu, 20-25 kg of prepared agricultural rare earth containing a precipitation inhibitor is mixed with an inorganic fertilizer for use, wherein the N (nitrogen) is 8.6 kg, the P2O5 (phosphorus pentoxide) is 6 kg, and the K2O (potassium oxide) is 23 kg, and the mixture is used as a base fertilizer or an additional fertilizer. When the sugarcane is used for 5 years continuously, the average yield of the sugarcane (producing sugar) is increased by 16.6 percent.
The present invention has been described in detail with reference to the embodiments, but the description is only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The scope of the invention is defined by the claims. The technical solutions of the present invention or those skilled in the art, based on the teaching of the technical solutions of the present invention, should be considered to be within the scope of the present invention, and all equivalent changes and modifications made within the scope of the present invention or equivalent technical solutions designed to achieve the above technical effects are also within the scope of the present invention.

Claims (9)

1. A preparation method of agricultural rare earth containing a precipitation inhibitor is characterized by comprising the following steps: the method comprises the following steps:
(1) the beneficial symbiotic thallus with the activity more than or equal to 100 hundred million cfu/g and using gamma polyglutamic acid as a carrier is used as an agricultural rare earth precipitation and precipitation inhibitor, the beneficial symbiotic thallus is liquid, the pH is less than 5, and the weight ratio of the gamma polyglutamic acid to the beneficial symbiotic thallus is 1: 20-30;
(2) the agricultural rare earth precipitation inhibitor is mixed with agricultural rare earth in a weight ratio of 1: 1-1.5.
2. A process for producing an agricultural rare earth containing a precipitation inhibitor as claimed in claim 1, wherein: and (3) mixing the product obtained in the step (2) with magnesium sulfate and zinc sulfate according to the weight ratio of 6: 9-12: 4-7.
3. The process for producing agricultural rare earth containing a precipitation inhibitor as claimed in claim 1 or 2, wherein: the final product prepared by the steps can be solid or can be dissolved in water with the pH value of 4-4.5 to form liquid.
4. The process for producing agricultural rare earth containing a precipitation inhibitor as claimed in claim 1 or 2, wherein: the beneficial symbiotic thallus includes active photosynthetic bacteria, lactic acid bacteria, yeast, gram-positive actinomycetes and filamentous bacteria.
5. The process for producing agricultural rare earth containing a precipitation inhibitor as claimed in claim 1 or 2, wherein: the gamma polyglutamic acid has a relative molecular weight of 2 ten thousand units and water absorption capacity of 30-80 times of the weight of the gamma polyglutamic acid.
6. The process for producing agricultural rare earth containing a precipitation inhibitor as claimed in claim 1 or 2, wherein: the agricultural rare earth is agricultural nitric acid rare earth or agricultural chlorinated rare earth.
7. The agricultural rare earth containing a precipitation inhibitor obtained by the preparation method of the agricultural rare earth containing a precipitation inhibitor according to any one of claims 1 to 6.
8. The use of the agricultural rare earth containing precipitation inhibitor according to claim 7 in all kinds of crops, vegetables and commercial crops.
9. Use of an agricultural rare earth containing a precipitation inhibitor according to claim 8, wherein: the agricultural rare earth containing the precipitation inhibitor and the organic fertilizer are fermented and then used, the fermentation time is 15-25 days, and the agricultural rare earth containing the precipitation inhibitor and the organic fertilizer can be cured, wherein the mixing proportion of the agricultural rare earth containing the precipitation inhibitor and the organic fertilizer is 20-25 kg per mu and 2000-2500 kg per mu;
or the agricultural rare earth containing the precipitation inhibitor is mixed with the inorganic fertilizer containing N/P/K for use, and the consumption per mu of the agricultural rare earth containing the precipitation inhibitor is 20-25 kg;
or the agricultural rare earth containing the precipitation inhibitor can be dissolved into liquid to be directly used, and the daily consumption of the agricultural rare earth containing the precipitation inhibitor is 20-25 kg per mu.
CN201911323339.4A 2019-12-20 2019-12-20 Agricultural rare earth containing precipitation inhibitor and preparation method and application thereof Pending CN110922254A (en)

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Application publication date: 20200327