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Efficient environment-friendly nitrogen fertilizer based on biomass charcoal and production process thereof

A technology of biochar and production process, applied in nitrogen fertilizer, organic fertilizer, cyanamide fertilizer, etc., can solve the problem of low nitrogen utilization rate, and achieve the effect of high nitrogen utilization rate, high activity and stability, and high dispersion

Inactive Publication Date: 2016-09-28
GUANGDONG DAZHONG AGRI SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the nitrogen fertilizer products currently on the market have low nitrogen use efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A high-efficiency and environment-friendly nitrogen fertilizer based on biochar, wherein the high-efficiency and environment-friendly nitrogen fertilizer is made from the following raw materials in parts by weight:

[0068] Urea 100 parts

[0069] 1 part biochar

[0070] Phosphoric acid 0.1 part

[0071] Dicyandiamide 1 part

[0072] Starch gel 0.5 part.

[0073] The particle size of the biochar is 1 μm.

[0074] A production process of high-efficiency and environment-friendly nitrogen fertilizer based on biochar, comprising the following steps:

[0075] (1) Grinding biochar into powder;

[0076] (2) Mixing the ground biochar powder and phosphoric acid evenly to obtain a biochar mixture;

[0077] (3) Add dicyandiamide to urea and mix evenly to obtain a urea mixture;

[0078] (4) Mix the biochar mixture and the urea mixture evenly to obtain mixture A;

[0079] (5) Add starch gel into mixture A and mix well to obtain mixture B;

[0080] (6) The mixture B is granu...

Embodiment 2

[0088] The difference between this embodiment and above-mentioned embodiment 1 is:

[0089] A high-efficiency and environment-friendly nitrogen fertilizer based on biochar, wherein the high-efficiency and environment-friendly nitrogen fertilizer is made from the following raw materials in parts by weight:

[0090] Urea 100 parts

[0091] Biochar 2 parts

[0092] Phosphoric acid 0.2 part

[0093] Dicyandiamide 2 parts

[0094] Starch gel 0.8 parts.

[0095] The particle size of the biochar is 20 μm.

[0096] In the step (1), the particle size of the ground biochar powder is 20 μm.

[0097] In the step (2), the mass volume ratio of biochar powder and phosphoric acid is 2:0.2, and the mass fraction of phosphoric acid is 88%.

[0098] In the step (3), the amount of dicyandiamide added is 2% of the urea mass.

[0099] In the step (4), the mass ratio of the biochar mixture to the urea mixture is 2.2:102.

[0100] In the step (5), the amount of starch gel added is 0.8% of the...

Embodiment 3

[0103] The difference between this embodiment and above-mentioned embodiment 1 is:

[0104] A high-efficiency and environment-friendly nitrogen fertilizer based on biochar, wherein the high-efficiency and environment-friendly nitrogen fertilizer is made from the following raw materials in parts by weight:

[0105] Urea 100 parts

[0106] 3 parts biochar

[0107] Phosphoric acid 0.3 parts

[0108] Dicyandiamide 3 parts

[0109] 1 part starch gel.

[0110] The particle size of the biochar is 50 μm.

[0111] In the step (1), the particle size of the ground biochar powder is 50 μm.

[0112] In the step (2), the mass volume ratio of biochar powder and phosphoric acid is 3:0.3, and the mass fraction of phosphoric acid is 90%.

[0113] In the step (3), the amount of dicyandiamide added is 3% of the urea mass.

[0114] In the step (4), the mass ratio of the biochar mixture to the urea mixture is 3.3:103.

[0115] In the step (5), the amount of starch gel added is 1% of the mas...

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Abstract

The invention relates to the technical field of fertilizer, in particular to an efficient environment-friendly nitrogen fertilizer based on biomass charcoal and a production process thereof. The efficient environment-friendly nitrogen fertilizer is prepared from, by weight, 100 parts of urea, 1-5 parts of biomass charcoal, 0.1-0.5 part of phosphoric acid, 1-5 parts of dicyandiamide and 0.5-1.5 parts of starch gel. The efficient environment-friendly nitrogen fertilizer has a slow release function and is long-acting, ammonia gas volatilization speed is low, leaching loss of nitrate is small, the nitrogen fertilizer can be efficiently absorbed by plants, and the nitrogen use ratio is large.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a high-efficiency and environment-friendly nitrogen fertilizer based on biomass charcoal and a production process thereof. Background technique [0002] Fertilization has become one of the indispensable technical measures of agricultural production, contributing more than half of crop production. The utilization rate of fertilizers in China has always been relatively low. For example, the average utilization rate of nitrogen fertilizers for current crops is only about 30%, which is nearly 20 percentage points lower than that of developed countries. This is due to the unscientific fertilization methods on the one hand, and the fertilizer itself on the other hand. characteristics. It is urgent to improve fertilizer utilization efficiency, and research and development of new multifunctional fertilizers is one of the important ways to improve fertilizer utilization efficiency. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCC05B17/00C05G3/00C05G3/80C05G3/90C05C7/00C05C9/00C05C11/00C05F11/00C05G5/12Y02P60/21Y02A40/22
Inventor 邸洪杰罗伯特·弗拉纳根王海龙刘兴元林小明
Owner GUANGDONG DAZHONG AGRI SCI CO LTD
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