Biochar-based fertilizer as well as preparation method and application thereof

A biochar and fertilizer technology, applied in the agricultural field, can solve the problems of inapplicable crops and single function, and achieve the effects of reducing nutrient loss, improving soil fertility, and preventing soil compaction.

Inactive Publication Date: 2020-08-11
INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, this application provides a biochar-based fertilizer that can control polluted soil and is suitable for crops, and solves the technical defect that the existing biochar-based fertilizer has a single function and cannot be applied to crops

Method used

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  • Biochar-based fertilizer as well as preparation method and application thereof
  • Biochar-based fertilizer as well as preparation method and application thereof
  • Biochar-based fertilizer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 of the present application provides the first biochar-based fertilizer, and the specific preparation method is as follows:

[0042] (1) take by weighing the biochar that the garden waste of 50 parts is made, the urea that the mass fraction is 15 parts, the calcium superphosphate that the mass fraction is 10 parts, the potassium chloride that the mass fraction is 17 parts, the mass fraction 3 parts of magnesium sulfate, 4 parts of potassium humate and 1 part of clay mineral in mass fraction, then stand-by:

[0043] (2) drying and pulverizing biochar, urea, superphosphate, potassium chloride, magnesium sulfate and potassium humate with a dryer to obtain a mixture for use;

[0044] (3) Add the mixture in step 2 to clay minerals, mix, stir evenly, adjust the water content, and then put it into a granulator to extrude and granulate to obtain a biochar-based fertilizer.

[0045] (4) detect the biochar-based fertilizer, the N+P of the embodiment of the applicatio...

Embodiment 2

[0047] The biochar-based fertilizer that embodiment 1 makes to the effect verification test of sweet potato, concrete steps are as follows:

[0048] Three treatment groups were set up in the experiment, namely:

[0049] Treatment group one ( figure 1 and figure 2 Marked as blank no-fertilizer group): blank no-fertilizer group;

[0050] Treatment group two ( figure 1 and figure 2 marked as conventional fertilization group): conventional fertilization group (N, P 2 o 5 、K 2 O dosage is divided into 14kg / 667m 2 、6kg / 667m 2 、20kg / 667m 2 );

[0051] Treatment group three ( figure 1 and figure 2 Marked as charcoal-based fertilizer group): the biochar-based fertilizer (N+P 2 o 5 +K 2 O≥20%, biochar C≥9%).

[0052] The test crop is the red sweet potato variety, and the test site is set in Guangzhou area. It was transplanted on August 19 and harvested on December 2. The whole growth period is 95 days. When harvesting, the output of sweet potato pieces is statistical...

Embodiment 3

[0054] Determination of the impact test of the biochar-based fertilizer that Example 1 makes on soil acidity and alkalinity (pH value), concrete steps are as follows:

[0055] Three treatment groups were set up in the experiment, namely:

[0056] Treatment group one ( image 3 Marked as blank no-fertilizer group): blank no-fertilizer group;

[0057] Treatment group two ( image 3 marked as conventional fertilization group): conventional fertilization group (N, P 2 o 5 、K 2 O dosage is divided into 14kg / 667m 2 、6kg / 667m 2 、20kg / 667m 2 );

[0058] Treatment group three ( image 3 Marked as charcoal-based fertilizer group): the biochar-based fertilizer (N+P 2 o 5 +K 2 O≥20%, biochar C≥9%).

[0059] The test crop is the red sweet potato variety, and the test site is set in Guangzhou area. It was transplanted on August 19 and harvested on December 2. The whole growth period is 95 days. When harvesting, take the soil of each treatment plot, measure the soil pH value, a...

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Abstract

The invention belongs to the technical field of agriculture, and particularly relates to a biochar-based fertilizer as well as a preparation method and an application thereof. The invention provides the biochar-based fertilizer. The biochar-based fertilizer comprises biochar, urea, calcium superphosphate, potassium chloride, magnesium sulfate, a soil conditioner and clay minerals. The invention further discloses the preparation method of the biochar-based fertilizer, which comprises the following steps: step 1, mixing biochar, urea, calcium superphosphate, potassium chloride, magnesium sulfateand a soil conditioner, and sequentially drying and crushing to obtain a mixture; and step 2, mixing the mixture with clay minerals, and granulating to obtain the biochar-based fertilizer. The invention provides the application of the biochar-based fertilizer in treatment of acidified soil and improvement of crop yield and vitamin C content. The invention provides the biochar-based fertilizer which can treat polluted soil and is suitable for crops, and the technical defects that an existing biochar-based fertilizer is single in function and cannot be suitable for various crops and soil improvement are overcome.

Description

technical field [0001] The application belongs to the technical field of agriculture, and in particular relates to a biochar-based fertilizer and its preparation method and application. Background technique [0002] Landscaping is valued by modern city managers and planners because of its obvious role in purifying the air, beautifying the environment, and alleviating the urban heat island effect. With the rapid development of my country's urbanization process, the urban landscaping area has increased on a large scale, resulting in a large amount of garden waste. Garden waste refers to plant residues such as leaves, branches, residual flowers and fruits produced by natural fall of garden plants or artificial pruning. Garden waste contains K, Na, Ca, Mg and other elements, and has the characteristics of high nutrient content, low harmful components, and strong availability. According to statistics, 10,000 street trees produce 600 tons of garden waste every year, and Beijing,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80
CPCC05B1/02C05G3/80C05C9/00C05D1/02C05D5/00C05D9/00C05F11/02
Inventor 黄庆刘忠珍魏岚黄连喜李翔黄玉芬陈伟盛
Owner INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
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