Special slow-release fertilizer for sugarcane and preparation method of slow-release fertilizer

A technology of slow-release fertilizers and sugarcane, applied in the field of slow-release fertilizers and their preparation, can solve the problems of not obvious increase in production, and achieve the effects of improving slow-release performance, promoting growth, and improving utilization efficiency

Inactive Publication Date: 2018-08-21
合肥卓畅农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the incr

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example 1

[0041] The present embodiment provides a slow-release fertilizer dedicated to sugarcane. The slow-release fertilizer dedicated to sugarcane includes an inner core and a coating layer covering the surface of the inner core;

[0042] The inner core includes the following raw materials in parts by weight: 42 parts by weight of urea, 5 parts by potassium dihydrogen phosphate, 12 parts by magnesium humate, 4 parts by acidified attapulgite, and 3.2 parts by nitrogen fertilizer synergist;

[0043] The coating layer includes the following raw materials in parts by weight: 32 parts of sodium alginate oligosaccharide, 1.3 parts of binder, 15 parts of glycerol ester copolymer, and 3 parts of phosphogypsum.

[0044] As a preferred solution, the weight of the binder is 20% of the total weight of the coating layer.

[0045] As a preferred solution, the binder is a mixture of polyvinyl alcohol and attapulgite clay.

[0046] As a preferred solution, the mass ratio of the polyvinyl alc...

Example Embodiment

[0056] Example 2

[0057] The present embodiment provides a slow-release fertilizer dedicated to sugarcane. The slow-release fertilizer dedicated to sugarcane includes an inner core and a coating layer covering the surface of the inner core;

[0058] The inner core includes the following raw materials in parts by weight: 23 parts by weight of urea, 11 parts by potassium dihydrogen phosphate, 8 parts by magnesium humate, 9 parts by acidified attapulgite, and 1.8 parts by nitrogen fertilizer synergist;

[0059] The coating layer includes the following raw materials in parts by weight: 15 parts of sodium alginate oligosaccharide, 3.2 parts of binder, 7 parts of glycerol ester copolymer, and 9 parts of phosphogypsum.

[0060] As a preferred solution, the weight of the binder is 16% of the total weight of the coating layer.

[0061] As a preferred solution, the binder is a mixture of polyvinyl alcohol and attapulgite clay.

[0062] As a preferred solution, the mass ratio of the polyvinyl alco...

Example Embodiment

[0072] Example 3

[0073] The present embodiment provides a slow-release fertilizer dedicated to sugarcane. The slow-release fertilizer dedicated to sugarcane includes an inner core and a coating layer covering the surface of the inner core;

[0074] The inner core includes the following raw materials in parts by weight: 25 parts by weight of urea, 7 parts by potassium dihydrogen phosphate, 9 parts by magnesium humate, 6 parts by acidified attapulgite, and 1.9 parts by nitrogen fertilizer synergist;

[0075] The coating layer includes the following raw materials in parts by weight: 22 parts of sodium alginate oligosaccharides, 1.9 parts of binder, 12 parts of glycerol ester copolymer, and 6 parts of phosphogypsum.

[0076] As a preferred solution, the weight of the binder is 17% of the total weight of the coating layer.

[0077] As a preferred solution, the binder is a mixture of polyvinyl alcohol and attapulgite clay.

[0078] As a preferred solution, the mass ratio of the polyvinyl alc...

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PUM

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Abstract

The invention provides a special slow-release fertilizer for sugarcane and a preparation method of the slow-release fertilizer. The slow-release fertilizer comprises an inner core and an enveloping layer covering the surface of the inner core. According to the slow-release fertilizer, ingredients of the inner core and the enveloping layer are adjusted; and the inner core adopts urea, monopotassiumphosphate, magnesium humate, acidified attapulgite and a nitrogenous fertilizer synergist as the ingredients that are matched according to corresponding quantities to provide nutritional ingredientssuch as a carbon source, a nitrogen source and inorganic elements required by sugarcane growth and promote the growth. The enveloping layer adopts sodium alginate oligosaccharide, a binding agent, a glycerol-ester copolymer and phosphogypsum as ingredients; the enveloping layer is prepared by taking sodium alginate oligosaccharide as a main material and binding sodium alginate oligosaccharide, theglycerol-ester copolymer and the phosphogypsum via the binding agent; the ingredients of the inner core can be released slowly in a long-acting manner for the sugarcane growth; and the utilization ratio of the fertilizer and the yield are increased.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a slow-release fertilizer specially used for sugarcane and a preparation method thereof. Background technique [0002] Sugarcane is the main sugar crop in my country. It is widely planted in tropical and subtropical regions of China and plays an irreplaceable role in promoting economic development and social stability in production areas. Sugarcane is a C4 crop, which has the characteristics of long growth period, high yield, and high nutrient consumption. It is an economic crop that requires a large amount of fertilizer. Studies have shown that each ton of sugarcane needs to absorb 1.5-2.0kg of nitrogen, 1.0-1.5kg of phosphorus, and 2.0-2.5kg of potassium from the soil. Fertilizer has become the most important means of production for sugarcane. [0003] The Chinese patent with the application number CN201711097044.0 is named as a sugarcane planting fertilizer, a...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCC05B7/00C05G3/00C05G3/80C05G3/90C05G5/30C05C9/00C05D3/02C05D9/00C05F11/02
Inventor 解正来
Owner 合肥卓畅农业科技有限公司
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