Special biochar-based slow release fertilizer for corn, and preparation method thereof

A biochar, special fertilizer technology, applied in the application, fertilization device, fertilizer mixture and other directions, can solve the problems of limited nutrients and can not meet the growth and development of crops, and achieve high utilization rate, not easy to leaching, and improve water permeability. Effect

Inactive Publication Date: 2019-06-04
陈燕蓉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biochar can improve the soil, improve the soil environment, etc., but the nutrients contained in biochar itself are limited, which cannot meet the needs of crop growth and development.

Method used

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  • Special biochar-based slow release fertilizer for corn, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of biochar composite material: Dissolve KOH in water, add 55 parts of forestry processing product waste, 60 parts of livestock and poultry manure, and 7.5 parts of bentonite, stir evenly, transfer to a closed high-pressure reactor, and put it in a pressure of 2.7MPa and a temperature of Pressurize and impregnate at 240°C for 3.5h, cool to room temperature and place in a tube furnace. 2 -NH 3 Under protection, heat at a rate of 8°C / min to 600°C for 2.0 hours in air isolation, then cool to room temperature to obtain a biochar composite material, pulverize and sieve the biochar composite material to obtain a biochar composite material powder.

[0030] Mixing of materials: after dissolving 25 parts of sodium carboxymethyl starch in water, with step 1) biochar composite material powder, 4.5 parts of sepiolite, 22 parts of spider silk, 3 parts of lime powder, 20 parts of pseudophysalis powder , 12 parts of sausage, 13.5 parts of bitter bark vine, 11.5 parts of hy...

Embodiment 2

[0034] Preparation of biochar composite material: Dissolve KOH in water, add 52 parts of forestry processing product waste, 58 parts of livestock and poultry manure, 6 parts of bentonite, stir evenly, transfer to a closed high-pressure reactor, and put it under pressure of 2.8MPa and temperature of Pressurize and impregnate at 220°C for 4 hours, cool to room temperature and place in a tube furnace. 2 -NH 3 Under protection, heat at a rate of 7°C / min to 530°C for 1.5h in the absence of air, then cool to room temperature to obtain a biochar composite material, pulverize and sieve the biochar composite material to obtain a biochar composite material powder.

[0035] Mixing of materials: after dissolving 22 parts of sodium carboxymethyl starch in water, with step 1) biochar composite material powder, 4 parts of sepiolite, 28 parts of spider silk, 2 parts of lime powder, 17 parts of pseudophysalis powder , 13 parts of sausage, 12 parts of bitter bark vine, 10.5 parts of hydrangea,...

Embodiment 3

[0039] Preparation of biochar composite material: Dissolve KOH in water, add 58 parts of forestry processing product waste, 50 parts of livestock and poultry manure, 6.5 parts of bentonite, stir evenly, transfer to a closed high-pressure reaction kettle, and put it in a pressure of 2.6MPa and a temperature of Pressurize and impregnate at 250°C for 3 hours, cool to room temperature and place in a tube furnace, in N 2 -NH 3 Under protection, heat at a rate of 6°C / min to 500°C for 3.0 hours in air isolation, and then cool to room temperature to obtain a biochar composite material. The biochar composite material is pulverized and sieved to obtain a biochar composite material powder.

[0040] Mixing of materials: after dissolving 20 parts of sodium carboxymethyl starch in water, with step 1) biochar composite material powder, 6 parts of sepiolite, 30 parts of spider silk, 2.5 parts of lime powder, 15 parts of pseudophysalis powder , 14 parts of sausage, 13 parts of bitter bark vin...

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PUM

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Abstract

The invention belongs to the technical field of fertilizer processing, and relates to a special biochar-based slow release fertilizer for corn, and a preparation method thereof, wherein the raw materials comprise, by weight, 50-60 parts of forestry processing product waste, 50-60 parts of livestock and poultry manure, 4-6 parts of sepiolite, 6-8 parts of bentonite, 20-25 parts of sodium carboxymethyl starch, 20-30 parts of spider silk, 2-3 parts of lime powder, 15-20 parts of Nicandra physaloides powder, 10-15 parts of Polygonum aviculare L, 12-14 parts of Celastrus angulatus Maxim, 10-12 parts of catchweed bedstraw herb, 20-25 parts of nitrogen fertilizer, 10-12.5 parts of phosphorus fertilizer, 30-37.5 parts of potassium fertilizer, 2-4 parts of trace element fertilizer, 8-14 parts of compound bacteria, 3-5 parts of agricultural rare earth, 1-2 parts of a nitrification inhibitor DMPP, 0.8-1.0 part of alpha-naphthaleneacetic acid, 0.1-1 part of S-abscisic acid, and a proper amount ofwater.

Description

technical field [0001] The invention belongs to the technical field of fertilizer processing, and relates to a special biochar-based slow-release fertilizer for corn and a preparation method thereof. Background technique [0002] Corn is an annual herbaceous plant belonging to the Poaceae Zea genus, with aliases: maize, cob, corn, rice, millet, corn, corn, pearl rice, bract reed, and big milo. Maize is an annual monoecious cross-pollinated plant with tall plants and strong stems. It is an important food crop and feed crop. It is also the crop with the highest total output in the world. Its planting area and total output are second only to rice and wheat. Corn has always been known as a longevity food, rich in protein, fat, vitamins, trace elements, cellulose, etc., and has great potential for developing high-nutrition, high-biological function foods. Corn is an important food crop in my country, and its per unit yield and total output have surpassed wheat and ranked second ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/02C05G3/04C05G3/08C05G3/60C05G3/80C05G3/90
CPCY02A40/22Y02P60/21
Inventor 陈燕蓉
Owner 陈燕蓉
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