Special multi-stage controlled-release compound microbial fertilizer for rice and preparation method thereof

A compound microorganism and rice technology, applied in the field of multi-level controlled-release compound microbial fertilizer for rice and its preparation, can solve the problem of not being able to adapt to the complex growth environment of rice, the coating material not being able to adapt to the flooding environment of rice, slow-release fertilizer releasing nutrients and Microbial flora cannot fully conform to the absorption rules of rice nutrients, etc., to achieve the effects of reducing agricultural non-point source pollution, saving labor costs, and improving fertilizer utilization efficiency

Active Publication Date: 2022-04-12
SHANGHAI NUOTONG INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although slow-release fertilizers have many advantages, the slow-release fertilizers currently on the market are completely unable to adapt to the complex growth environment of rice: ①The slow-release fertilizers currently on the market are multi-layer slow-release fertilizers, which cannot precisely control the fertilizer according to the needs of rice. The law of fertilizer can meet the nutritional needs of rice immediately; ②The release of nutrients by slow-release fertilizer and the microbiome cannot fully meet the law of nutrient absorption by rice; ③The coating material of slow-release fertilizer cannot adapt to the flooded environment of rice.

Method used

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  • Special multi-stage controlled-release compound microbial fertilizer for rice and preparation method thereof
  • Special multi-stage controlled-release compound microbial fertilizer for rice and preparation method thereof
  • Special multi-stage controlled-release compound microbial fertilizer for rice and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Special multi-level controlled-release compound microbial fertilizer for rice, its structure from inside to outside is as follows: figure 1 As shown, it includes: rice booting fertilizer layer 1, dry field nutrient bacterial agent layer 2, water-soluble sensitive layer 3 with a pH value greater than or equal to 6, rice seedling fertilizer layer 4 with a pH value less than 6, paddy field biocontrol bacterial agent layer 5, hydrolyzed bag Film layer 6, decomposed microorganism / organic fertilizer layer 7;

[0038] Prepare the materials to form the layers:

[0039] The first layer is paddy rice booting fertilizer layer 1, and used material is the mixture of nitrogen fertilizer, phosphorus fertilizer, potash fertilizer, silicon fertilizer, zinc fertilizer, and the weight ratio of nitrogen fertilizer, phosphorus fertilizer, potash fertilizer, silicon fertilizer, zinc fertilizer is 60:10:15:10: 5. The nitrogen fertilizer used is potassium nitrate, the phosphate fertilizer is ...

Embodiment 2

[0054] Special multi-stage controlled release compound microbial fertilizer for rice, its structure is identical with embodiment 1;

[0055] Prepare the materials to form the layers:

[0056] The first layer is paddy rice booting fertilizer layer 1, and used material is the mixture of nitrogen fertilizer, phosphorus fertilizer, potash fertilizer, silicon fertilizer, zinc fertilizer, and the weight ratio of nitrogen fertilizer, phosphorus fertilizer, potash fertilizer, silicon fertilizer, zinc fertilizer is 60:15:15:15: 5. The nitrogen fertilizer used is urea, the phosphate fertilizer is monoammonium phosphate, the potassium fertilizer is potassium nitrate, the silicon fertilizer is sodium silicate, and the zinc fertilizer is EDTA-Zn. Mix these five fertilizers evenly for use;

[0057] The second layer is dry field nutrient bacterial agent layer 2, and the nutritional bacterium agent used is Bacillus megaterium bacterial powder and jelly-like Bacillus bacterial powder, and the ...

Embodiment 3

[0066] Special multi-stage controlled release compound microbial fertilizer for rice, its structure is identical with embodiment 1;

[0067] Prepare the materials to form the layers:

[0068] The first layer is paddy rice booting fertilizer layer 1, and used material is the mixture of nitrogen fertilizer, phosphorus fertilizer, potash fertilizer, silicon fertilizer, zinc fertilizer, and the weight ratio of nitrogen fertilizer, phosphorus fertilizer, potash fertilizer, silicon fertilizer, zinc fertilizer is 60:10:15:10: 5. The selected ammonium chloride, phosphate fertilizer is monoammonium phosphate, potash fertilizer is potassium nitrate, silicon fertilizer is potassium silicate, and zinc fertilizer is zinc sulfate. Mix these five fertilizers evenly for use;

[0069] The second layer is dry field nutrient bacterial agent layer 2, and the nutritional bacterium agent used is Bacillus megaterium bacterial powder and jelly-like Bacillus bacterial powder, and the mass ratio of the...

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Abstract

The invention relates to a special multi-stage controlled-release compound microbial fertilizer for rice and a preparation method thereof. The special multi-stage controlled-release compound microbial fertilizer structurally comprises a rice booting fertilizer layer, a dry farmland nutrient microbial agent layer, a water-soluble sensitive layer with the pH value larger than or equal to 6, a rice seedling fertilizer layer with the pH value smaller than 6, a paddy field biocontrol microbial agent layer, a hydrolysis coating layer and a decomposed microorganism/organic matter fertilizer layer from inside to outside in sequence. Wherein the water-soluble sensitive layer with the pH value greater than or equal to 6 is made of one or more of cellulose acetate phthalate, hydroxypropyl methylcellulose acetate succinate, a methacrylic acid copolymer L100, a methacrylic acid copolymer S100 and a methacrylic acid copolymer L100; wherein the hydrolysis coating layer is made of one or more of Arabic gum, gelatin and peach gum. The compound microbial fertilizer disclosed by the invention can release required nutrients according to soil environment control in different growth periods of rice, meets nutrient requirements of the whole growth period of the rice, and improves the utilization rate of the fertilizer.

Description

technical field [0001] The invention relates to the fields of fertilizer technology and crop planting technology, in particular to a special multi-stage controlled-release compound microbial fertilizer for rice and a preparation method thereof. Background technique [0002] As an important food source in China, rice generally needs to be fertilized 3 to 5 times in a growth cycle, while the utilization rate of nitrogen fertilizer in my country is about 30%, especially the characteristics of flooded growth of rice fields, resulting in most of the fertilizers being drained during the draining period. Fertilization with water, insufficient fertility leads to secondary topdressing, these excess nutrients are lost in the environment through leakage, runoff and volatilization, causing serious pollution to soil, water and the atmosphere. [0003] Compared with traditional conventional fertilizers, slow-release fertilizers have the advantages of long fertilizer effect, slow fertilizer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/40C05G3/60C05G3/80C05G3/90C05G5/12C05G5/30
Inventor 阚雨晨闫龙翔陈露严瑾黄璐璐
Owner SHANGHAI NUOTONG INFORMATION TECH CO LTD
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