Dedicated carbon-based fertilizer for cotton fields and preparation method thereof

A carbon-based fertilizer, cotton field technology, applied in the application, nitrogen fertilizer, potash fertilizer and other directions, can solve the problem of not being suitable for cotton planting, etc., and achieve the effect of improving the utilization rate of chemical fertilizers, enriching nutrients, and increasing the content

Inactive Publication Date: 2019-03-08
QINGDAO AGRI UNIV
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  • Abstract
  • Description
  • Claims
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  • Dedicated carbon-based fertilizer for cotton fields and preparation method thereof

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Embodiment 1

[0029] The biochar-based fertilizer in this embodiment is a special carbon-based fertilizer for cotton fields.

[0030] Crush the gypsum, bentonite and cotton straw biochar, pass the gypsum and bentonite through a 100-mesh sieve, and pass the cotton straw biochar through a 60-mesh sieve.

[0031] The amount of biochar-based fertilizer for cotton dedicated to 100 kg is as follows: mix 16.2 kg of diammonium phosphate, 4.7 kg of urea, 6 kg of potassium sulfate (K2O-50), 30 kg of cotton straw biochar, 12 kg of gypsum and 12 kg of bentonite Come together and stir well to obtain a fertilizer mixture. The temperature of the fertilizer mixture is heated to 60° C., and the water content of the fertilizer mixture is 4 to 10%.

[0032] The fertilizer mixture is firstly granulated with a drum granulator, and then shaped and granulated with a disc granulator to obtain fertilizer granules. In order to match the conveying capacity of the conveyor belt with the output of the drum granulator...

Embodiment 2

[0035] The biochar-based fertilizer in this embodiment is a special carbon-based fertilizer for cotton fields.

[0036] Crush the gypsum, bentonite and cotton straw biochar, pass the gypsum and bentonite through a 100-mesh sieve, and pass the cotton straw biochar through a 60-mesh sieve.

[0037] The addition amount of biochar-based fertilizer for 100 kg of cotton is as follows: mix 16.2 kg of diammonium phosphate, 4.7 kg of urea, 6 kg of potassium sulfate (K2O-50), 35 kg of cotton straw biochar, 9 kg of gypsum and 9 kg of bentonite Come together and stir well to obtain a fertilizer mixture. Heating makes the temperature of the fertilizer mixture at 65°C, and the water content of the fertilizer mixture is 4-10%.

[0038] The fertilizer mixture is firstly granulated with a drum granulator, and then shaped and granulated with a disc granulator to obtain fertilizer granules. In order to match the conveying capacity of the conveyor belt with the output of the drum granulator, th...

Embodiment 3

[0041] The biochar-based fertilizer in this embodiment is a special carbon-based fertilizer for cotton fields.

[0042] Crush the gypsum, bentonite and cotton straw biochar, pass the gypsum and bentonite through a 100-mesh sieve, and pass the cotton straw biochar through a 60-mesh sieve.

[0043] The amount of biochar-based fertilizer for cotton dedicated to 100 kg is as follows: mix 16.2 kg of diammonium phosphate, 4.7 kg of urea, 6 kg of potassium sulfate (K2O-50), 40 kg of cotton straw biochar, 7 kg of gypsum and 7 kg of bentonite Come together and stir well to obtain a fertilizer mixture. Heating makes the temperature of the fertilizer mixture at 70°C, and the water content of the fertilizer mixture is 4-10%.

[0044] The fertilizer mixture is firstly granulated with a drum granulator, and then shaped and granulated with a disc granulator to obtain fertilizer granules. In order to match the conveying capacity of the conveyor belt with the output of the drum granulator, the...

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Abstract

The invention discloses a dedicated carbon-based fertilizer for cotton fields and a preparation method thereof. The dedicated carbon-based fertilizer for the cotton fields is prepared from the following raw materials in parts by weight: 15 to 18 parts of diammonium phosphate, 2 to 5 parts of urea, 2 to 5 parts of potassium sulfate, 30 to 45 parts of cotton straw biochar, 8 to 16 parts of gypsum and 8 to 16 parts of bentonite. The preparation method comprises the following steps: step 1, carbonizing the cotton stalks in an oxygen limit mode under 450 to 550 DEG C to prepare biomass charcoal andmeanwhile, evenly spraying pyroligneous on the prepared biomass charcoal; step 2, sieving the bentonite and gypsum by a 100-mesh sieve and sieving the cotton stalk biomass charcoal by a 60-mesh sieve; step 3, mixing all the raw materials together and evenly stirring to prepare a carbon-based fertilizer mixture; step 4, preparing the carbon-based fertilizer mixture into fertilizer particles; step5, utilizing a drying machine to dry the fertilizer particles to obtain the carbon-based fertilizer for cotton straws.

Description

technical field [0001] The invention relates to the technical field of biochar-based fertilizer preparation, in particular to a special carbon-based fertilizer for cotton fields and a preparation method thereof. Background technique [0002] Chemical fertilizers have the advantages of ensuring grain production and increasing production. However, there are also phenomena such as low utilization rate of chemical fertilizers and long-term application of a large number of chemical fertilizers to soil compaction and acidification. [0003] Biochar is a porous substance with good adsorption properties. The combined application of biochar and chemical fertilizers can improve the utilization rate of chemical fertilizers and increase food production. However, different types of soil contain different organic matter and nitrogen, phosphorus and potassium nutrients; different crops also have their own characteristics in absorbing nutrients. Therefore, it is necessary to develop a spe...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/00C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05C9/00C05D1/02C05D3/00C05D9/00
Inventor 崔德杰于桂玲宋祥云柳新伟曾路生
Owner QINGDAO AGRI UNIV
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