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Preparation method of compound slow-release fertilizer capable of improving yield of paddy rice

A slow-release fertilizer and yield technology, applied in nitrogen fertilizer, potash fertilizer, phosphate fertilizer and other directions, can solve the problems of unscientific fertilization, low yield, improper fertilizer management, etc., and achieve the effect of good coating effect, high utilization rate and reduction of loss.

Inactive Publication Date: 2018-02-23
来安县薜必英家庭农场
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing technology is planting rice, the yield is often low due to improper fertilizer management and unscientific fertilization, which needs to be solved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a compound slow-release fertilizer for improving rice yield, comprising the steps of:

[0023] S1, 60g ammonium sulfur nitrate, 50g ammonium chloride, 30g diammonium phosphate, 26g phosphate rock powder, 15g potassium halite, 18g carnallite, 12g coal gangue, 8g zeolite powder were stirred for 10min, and the stirring speed was 400r / min. Stirring temperature is 125°C to obtain prefabricated material A;

[0024] S2. Stir 90g of chicken manure, 16g of shell carbon powder, 12g of diatomaceous earth, 4g of manganese humate, 8g of ammonium molybdate, and 4g of hexaurea iron trinitrate for 25 minutes at a stirring speed of 400r / min and at a stirring temperature of 85°C , to obtain prefabricated material B;

[0025] S3. In the state of stirring, add 95g of preform A to 150g of preform B. After the addition is complete, adjust the temperature to 110°C and stir for 16min at a stirring speed of 300r / min. Spray down, cool down, spray into 8g anti-caking coat...

Embodiment 2

[0028] A method for preparing a compound slow-release fertilizer for improving rice yield, comprising the steps of:

[0029] S1, 70g ammonium sulfur nitrate, 30g ammonium chloride, 40g diammonium phosphate, 20g phosphate rock powder, 23g potassium halite, 10g carnallite, 18g coal gangue, 4g zeolite powder were stirred for 20min, and the stirring speed was 200r / min, The stirring temperature is 145°C to obtain preform A;

[0030] S2. Stir 70g of chicken manure, 22g of fruit shell carbon powder, 6g of diatomaceous earth, 8g of manganese humate, 4g of ammonium molybdate, and 8g of hexaurea iron trinitrate for 15 minutes at a stirring speed of 550r / min and at a stirring temperature of 65°C , to obtain prefabricated material B;

[0031] S3. In the state of stirring, add 80g of preform A to 160g of preform B. After the addition is complete, adjust the temperature to 120°C and stir for 8 minutes at a stirring speed of 450r / min. Spray down, cool down, spray into 4g anti-caking coatin...

Embodiment 3

[0034] A method for preparing a compound slow-release fertilizer for improving rice yield, comprising the steps of:

[0035] S1, 62g ammonium sulfur nitrate, 45g ammonium chloride, 32g diammonium phosphate, 24g phosphate rock powder, 18g potassium halite, 16g carnallite, 14g coal gangue, 7g zeolite powder were stirred for 12min, and the stirring speed was 350r / min, The stirring temperature is 130°C to obtain preform A;

[0036] S2. Stir 85g of chicken manure, 18g of fruit shell carbon powder, 10g of diatomaceous earth, 5g of manganese humate, 7g of ammonium molybdate, and 5g of hexaurea iron trinitrate for 22min at a stirring speed of 450r / min and at a stirring temperature of 80°C , to obtain prefabricated material B;

[0037] S3. In the state of stirring, add 90g of preform A to 152g of preform B. After the addition is complete, adjust the temperature to 112°C and stir for 14min at a stirring speed of 350r / min. Spray down, cool down, spray into 7g anti-caking coating agent ...

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PUM

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Abstract

The invention discloses a preparation method of compound slow-release fertilizer capable of improving the yield of paddy rice. The preparation method comprises the following steps: stirring ammonium sulfate nitrate, ammonium chloride, diammonium phosphate, phosphate rock powder, sylvite, carnallite, coal gangue and zeolite powder to obtain a pre-prepared material A; stirring chicken manure, shellcarbon powder, diatomite, manganese humate, ammonium molybdate and [Fe(H2NCONH2)6](NO3)3 to obtain a pre-prepared material B; under a stirring state, adding the pre-prepared material A into the pre-prepared material B; after adding all the pre-prepared material A, regulating the temperature; stirring, granulating and cooling; spraying an anti-caking film coating agent to obtain the compound slow-release fertilizer capable of improving the yield of the paddy rice. The anti-caking film coating agent is prepared by adopting the following technology: stirring rice protein, talcum powder and an ethanol solution; adding sodium alkyl sulfonate and 1,2-ethanedithiol and continually stirring; raising temperature, and continually stirring; cooling to obtain the anti-caking film coating agent.

Description

technical field [0001] The invention relates to the technical field of slow-release fertilizers, in particular to a method for preparing compound slow-release fertilizers for improving rice yield. Background technique [0002] Fertilizer is a class of substances that provide one or more essential nutrients for plants, improve soil properties, and increase soil fertility. There are many types of fertilizers, including chemical fertilizers such as nitrogen, phosphorus, and potassium, organic fertilizers such as soybean meal, chicken manure, and agricultural waste, biological fertilizers such as biological bacteria, and medium and trace elements such as silicon, magnesium, iron, boron, and selenium. Fertilizers are varied, and different crops have different requirements for fertilizers due to different growth habits and different growth stages. [0003] When the existing technology is planting rice, the yield is often low due to improper fertilizer management and unscientific ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05G3/20C05G3/80C05G5/30C05B17/00C05C1/00C05C3/00C05C5/00C05D1/02C05D9/00C05F3/00C05F11/02
Inventor 薛必英
Owner 来安县薜必英家庭农场
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