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Special control-release fertilizer for resin coated bagasse and preparation thereof

A technology of controlled-release fertilizer and sugarcane, which is applied in the direction of fertilization methods, application, nitrogen fertilizer, etc., can solve the problems of intensifying the fixation of nutrient ions by the soil, reducing the utilization rate of fertilizers, and losing the effectiveness of sugarcane, so as to prevent excessive reproductive growth, The effect of reducing the frequency of fertilization and promoting lodging resistance

Active Publication Date: 2009-01-07
广东金正大生态工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fertilizers currently used are mainly quick-acting chemical fertilizers, which dissolve quickly. If a large amount of fertilizer is applied near the root zone before planting, the nutrient concentration in the soil solution will be too high, and the phenomenon of "root burning" will occur. The immobilization of nutrient ions by soil makes nutrients lose their availability to sugarcane and reduces fertilizer use efficiency
There is no report on the special controlled-release fertilizer for sugarcane and its preparation method at present

Method used

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  • Special control-release fertilizer for resin coated bagasse and preparation thereof

Examples

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Effect test

Embodiment 1

[0047] Embodiment 1: Controlled release fertilizer special for sugarcane, total nutrient: nitrogen, phosphorus pentoxide, potassium oxide content are respectively 19%, 10%, 19%, all are percentage by mass. The raw material components are as follows:

[0048] 6% thermoplastic resin coated potassium nitrate 140kg

[0049] 7% thermoplastic resin coated potassium nitrate 140kg

[0050] 5% thermoplastic resin coated ammonium phosphate 35kg

[0051] 4% thermoplastic resin coated urea 50kg

[0052]5% thermoplastic resin coated urea 60kg

[0053] 6% thermoplastic resin coated urea 70kg

[0054] 8% thermoplastic resin coated urea 35kg

[0055] Potassium sulfate compound fertilizer 465kg

[0056] Zinc sulfate 5kg.

[0057] The preparation method is that the above-mentioned raw materials are put into a blender and stirred for 5-10 minutes, and fully mixed to obtain the product. Then the mixed fertilizer is sent to the metering and packaging machine for metering and packaging.

Embodiment 2

[0058] Embodiment 2: special controlled-release fertilizer for sugarcane, total nutrient: nitrogen, phosphorus pentoxide, potassium oxide content are respectively 17%, 10%, 21%, all are percentage by mass. The raw material components are as follows:

[0059] 6% thermoplastic resin coated potassium nitrate 165kg

[0060] 7% thermoplastic resin coated potassium nitrate 165kg

[0061] 5% thermoplastic resin coated ammonium phosphate 35kg

[0062] 4% thermoplastic resin coated urea 30kg

[0063] 5% thermoplastic resin coated urea 50kg

[0064] 6% thermoplastic resin coated urea 60kg

[0065] 8% thermoplastic resin coated urea 25kg

[0066] Potassium sulfate compound fertilizer 465kg

[0067] Zinc sulfate 5kg.

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Abstract

The invention relates to a special controlled-release fertilizer used for sugarcane and a manufacturing method thereof. The fertilizer is made by compounding 6 per cent thermoplastic resin-coated potassium nitrate, 7 per cent thermoplastic resin-coated potassium nitrate, 5 per cent thermoplastic resin-coated ammonium phosphate, 4 per cent thermoplastic resin-coated urea, 5 per cent thermoplastic resin-coated urea, 6 per cent thermoplastic resin-coated urea, 8 per cent thermoplastic resin-coated urea, potassium sulfate compound fertilizer, etc. The special controlled-release fertilizer used for sugarcane of the invention is manured once before sowing the sugarcane and the dressing is avoided; the invention has a good effect on increasing yield and can raise the utilization ratio of the fertilizer and save labor.

Description

technical field [0001] The invention relates to a method for producing a special controlled-release fertilizer for crops by using a thermoplastic resin coating, in particular to a special controlled-release fertilizer for resin-coated sugarcane and a preparation method thereof, belonging to the technical field of slow / controlled release fertilizers. Background technique [0002] Sugarcane is an important raw material for sugar production. In 2003, the world's total sugar production was 145.6 million tons, of which 70% was made of sugarcane. my country is an important producer of sucrose. In 2002, the planted area of ​​sugarcane was 121 hectares, ranking third in the world. Sugarcane is also a high-yield bioenergy crop with high biomass and high sugar content, which can be used not only for sugar refining, but also for direct production of alcohol. With the continuous development of science and technology, as an important energy crop, sugarcane has great development potentia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/08C05G1/00A01C21/00C05B7/00C05D1/02C05D9/02C05C9/00C05C5/02C05G3/90
Inventor 万连步张民王仕青郇恒星英磊
Owner 广东金正大生态工程有限公司
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