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

A biochar, potato technology, applied in the application, fertilizer form, fertilization device and other directions, can solve the problems of inability to meet the growth and development of crops, limited nutrients, etc., and achieve the effect of improving application value, high volatile components, and low aromatic components.

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 potato, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 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.

[0032] 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 , 6.5 parts of polyaspartic acid, 12 parts of bamboo stock, 13.5 parts ...

Embodiment 2

[0036] 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.

[0037] 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 , 7 polyaspartic acid, 13 parts of bamboo, 12 parts of bitter bark vine, 10.5...

Embodiment 3

[0041] 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.

[0042] 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 , 8 polyaspartic acid, 14 stock, 13 bitter bark vi...

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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 potato, 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, 6-8 parts of polyaspartic acid, 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, 40-50 parts of potassium fertilizer, 2-4 parts of trace element fertilizer, 8-14 parts of compound bacteria, 2-6 parts of a urease inhibitor, 3-7 parts of a soil regulator, and an appropriate amount of water. The special biochar-based slow release fertilizer of the present invention can effectively increase the yield of potato.

Description

technical field [0001] The invention belongs to the technical field of fertilizer processing, in particular to a special biochar-based slow-release fertilizer for potatoes and a preparation method thereof. Background technique [0002] Potatoes, also known as potatoes, ground eggs, yams, etc., are perennial herbaceous plants of the family Solanaceae, with edible tubers, oblate or 15-80 cm high, spherical, glabrous or sparsely pubescent. Potatoes are the fourth most important food crop globally, after wheat, rice and corn. Potato tubers contain 8-29% of starch, protein, minerals and vitamins and other nutrients. They have good yield and wide adaptability. They have gradually become an important food, vegetable, feed and industrial raw material for human beings, and have been included in the One of our staple food. It can be said that the potato will be one of the most promising main crops in the 21st century. [0003] During the growth of potatoes, nutrients are needed to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/04C05G5/00C05G3/60C05G3/80
CPCC05G3/00C05G3/60C05G3/80
Inventor 陈燕蓉
Owner 陈燕蓉
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