Biological carbon fertilizer capable of promoting fertilizer efficiency

A technology of biochar and fertilizer efficiency, applied in the direction of fertilizer mixture, nitrogen fertilizer, potash fertilizer, etc., can solve the problems of less nutrients, low specific surface area, and less microporous structure, and achieve the goal of increasing organic matter content, large specific surface area, and high adsorption performance Effect

Inactive Publication Date: 2017-01-11
刘建伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although biochar can be used as a fertilizer, it has less microporous structure, lower specific surface area, and retains less nutrients including trace elements, so it is generally necessary to add other fertilizers when using it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A biochar fertilizer capable of improving fertilizer efficiency is made from the following raw materials in parts by weight:

[0020] 60kg of biochar, 10kg of urea, 10kg of diammonium phosphate, 10kg of potassium sulfate, and 6kg of additives.

[0021] The biochar is prepared by pyrolyzing cotton stalks under the protection of nitrogen, grinding and sieving.

[0022] The temperature of the oxygen barrier pyrolysis is 400° C., and the time is 3-6 hours.

[0023] The biochar has a particle size of 0.8mm, a density of 0.8g / cm3, and a maximum water absorption of 450g / Kg.

[0024] The auxiliary agent is formed by mixing molten urea and water according to a mass ratio of 1:2.

[0025] A kind of preparation method of above-mentioned biochar fertilizer that can improve fertilizer efficiency, comprises the steps:

[0026] (1) Weigh the raw materials according to the ratio, and mix the raw materials evenly to obtain the mixture;

[0027] (2) Send the mixture into cracking equ...

Embodiment 2

[0029] A biochar fertilizer capable of improving fertilizer efficiency is made from the following raw materials in parts by weight:

[0030] 70kg of biochar, 11kg of urea, 11kg of diammonium phosphate, 11kg of potassium sulfate, and 8kg of additives.

[0031] The biochar is prepared by pyrolyzing corn stalks under the protection of nitrogen, grinding and sieving.

[0032] The temperature of the oxygen barrier pyrolysis is 450° C., and the time is 4.5 hours.

[0033] The biochar has a particle size of 1mm, a density of 0.9g / cm3, and a maximum water absorption of 450g / Kg.

[0034] The auxiliary agent is formed by mixing molten urea and water according to a mass ratio of 1:2.

[0035] A kind of preparation method of above-mentioned biochar fertilizer that can improve fertilizer efficiency, comprises the steps:

[0036] (1) Weigh the raw materials according to the ratio, and mix the raw materials evenly to obtain the mixture;

[0037] (2) Send the mixture into the cracking equ...

Embodiment 3

[0039] A biochar fertilizer capable of improving fertilizer efficiency is made from the following raw materials in parts by weight:

[0040] 80kg of biochar, 12kg of urea, 12kg of diammonium phosphate, 12kg of potassium sulfate, and 10kg of additives.

[0041] The biochar is prepared by pyrolyzing wheat straw under the protection of nitrogen, grinding and sieving.

[0042] The temperature of the oxygen barrier pyrolysis is 500° C., and the time is 6 hours.

[0043] The biochar has a particle size of 1.2 mm, a density of 1 g / cm3, and a maximum water absorption of 450 g / Kg.

[0044] The auxiliary agent is formed by mixing molten urea and water according to a mass ratio of 1:2.

[0045] A kind of preparation method of above-mentioned biochar fertilizer that can improve fertilizer efficiency, comprises the steps:

[0046] (1) Weigh the raw materials according to the ratio, and mix the raw materials evenly to obtain the mixture;

[0047] (2) Send the mixture into the cracking e...

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Abstract

The invention discloses a biological carbon fertilizer capable of promoting fertilizer efficiency. The biological carbon fertilizer is characterized by being prepared from the following raw materials in parts by weight: 60 to 80kg of biological carbon, 10 to 12kg of urea, 10 to 12kg of diammonium phosphate, 10 to 12kg of potassium sulphate and 6 to 10kg of additives. According to the invention, the biological carbon fertilizer takes crop straw as raw material components, and the straws used as the raw materials are low in cost and readily available in sources, and crushed into biological carbon powder through dehydration and deoxygenation and a way of high-temperature carbonization, the carbonization effect is good, and the carbon content is more than 25%, so that the straw carbonization rate is effectively improved, the carbon fertilizer is high in yield, the application effect is good, and heavy metals in soil can be passivated to improve the activity of soil microorganisms. The biological carbon fertilizer has a larger specific surface area and improves the organic matter content in the soil; as the low-cost non-chemical fertilizer, the product of the invention can provide a guarantee on yields of organic agriculture and green agriculture, and is further simple in preparation method, controllable and easy in implementation.

Description

technical field [0001] The invention relates to the fields of high-value comprehensive utilization of biomass resources and environmental pollution control, in particular to a biochar fertilizer capable of improving fertilizer efficiency. Background technique [0002] No matter in the fields of food crops or commercial crops, fertilization has been used for a long time to improve crop yield and quality. From the earliest application of farm organic fertilizers to the application of inorganic fertilizers, and then to the application of organic-inorganic compound fertilizers. Fertilizer type, fertilization amount and ratio have a great impact on the yield and quality of food crops or economic crops. Although traditional fertilizers, especially organic-inorganic compound fertilizers, have played a good role in increasing crop yields. However, traditional fertilizers have an unreasonable ratio of ingredients and nutrients, which can hardly restore soil fertility, improve soil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
CPCC05B7/00C05C9/00C05D1/02C05D9/00
Inventor 刘建伟
Owner 刘建伟
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