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

A biochar and special fertilizer technology, applied in application, fertilization equipment, fertilizer mixture, etc., can solve the problems of limited nutrients and inability to meet the growth and development of crops, and achieve the effect of less pollution, less artificial labor, and less leaching

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 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 3Under 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.

[0031] 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 bamboo shoots, 13.5 parts of bitter bark vine, 11.5 parts ...

Embodiment 2

[0035] 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.

[0036] 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 watermelon, 12 parts of bitter bark vine, 10.5 parts of hydrang...

Embodiment 3

[0040] 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.

[0041] 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 water chestnut, 13 parts of bitter b...

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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 Cunninghamia lanceolata, 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, 30-60 parts of nitrogen fertilizer, 14-28 parts of phosphorus fertilizer, 16-48 parts of potassium fertilizer, 2-4 parts of trace element fertilizer, 8-14 parts of compound bacteria, and a proper amount of water. The special biochar-based slow release fertilizer of the present invention has characteristics of environmental protection, no pollution,low leaching loss and good fertilizer efficiency, and can promote the nutrient absorption of Cunninghamia lanceolata.

Description

technical field [0001] The invention belongs to the technical field of fertilizer processing, in particular to a biochar-based slow-release special fertilizer for Chinese fir and a preparation method thereof. Background technique [0002] Chinese fir is a subtropical evergreen tree that grows fast, is light and tough, and is easy to process. It is a unique fast-growing commodity tree species and has a long planting history in my country. Chinese fir likes light and has relatively high requirements on soil. It likes fertile, deep, loose and well-drained soil. Guangxi has a subtropical monsoon climate, with abundant rainfall and distinct wet and dry seasons. The annual precipitation is between 1000 and 2000mm. The winter is short and the soil is deep and fertile, making it a good environment for the growth of Chinese fir. However, with the lapse of time of Chinese fir planting, people found that the soil fertility declined significantly during the cultivation process of Chine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCC05G3/00C05G3/90Y02A40/22Y02P60/21
Inventor 陈燕蓉
Owner 陈燕蓉
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