Special functional organic and inorganic controlled-release blended fertilizer for wheat in coast saline-alkali soil

A technology of saline-alkali land and fertilizer blending, applied in the directions of organic fertilizer, inorganic fertilizer, application, etc., can solve the problem of relatively little research on application effect, and achieve the effect of promoting the formation of soil aggregates, adjusting soil pH value, and improving fertilizer efficiency.

Inactive Publication Date: 2017-09-15
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are relatively few studies on the application effect of controlled-release fertilizers and slow-release fertilizers combined with humic acid on saline-alkali soil.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The raw materials used in this example are: 2200 kg of lignite humic acid, 70 kg of common urea, 260 kg of sulfur-added resin controlled release urea, 750 kg of superphosphate, 60 kg of potassium sulfate fertilizer, 10 kg of zinc sulfate fertilizer, and 10 kg of borax fertilizer ;

[0021] Two treatment groups A1 and A2 were established in the same wheat field for comparison:

[0022] Treatment A1: Fertilize the fertilizer prepared in this example at an application rate of 280 kg per mu. The method of fertilization is to evenly spread the fertilizer on the surface before sowing, and then plow to a depth of 15-20 cm. No topdressing is required.

[0023] Treatment A2: Compared with the above fertilization, it is the customary fertilization of farmers, specifically: the nutrient content of nitrogen, phosphorus and potassium is N-P 2 o 5 -K 2 O=15-15-15, fertilize 80 kilograms per acre as base fertilizer, and the method of fertilization is to spread evenly on the surface...

Embodiment 2

[0026] The raw materials used in this example are: 3000 kilograms of humic acid conditioning agent, 60 kilograms of common urea, 230 kilograms of sulfur-added resin controlled release urea, 600 kilograms of superphosphate, 50 kilograms of potassium sulfate fertilizer, 10 kilograms of zinc sulfate fertilizer, 10 kilograms of borax fertilizer Kilogram;

[0027] Select another wheat plot for experimentation, and set up two treatment groups B1 and B2 for comparison:

[0028] Treatment B1: Fertilize the fertilizer prepared in this example at an application rate of 250 kg per mu. The method of fertilization is to evenly spread the fertilizer on the surface before sowing, and then plow to a depth of 15-20 cm. No topdressing is required.

[0029] Treatment B2: Compared with the above fertilization, it is the customary fertilization of farmers, specifically: the nutrient content of nitrogen, phosphorus and potassium is N-P 2 o 5 -K 2 O=15-15-15, fertilize 80 kilograms per acre as ba...

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Abstract

The invention relates to a special functional organic and inorganic controlled-release blended fertilizer for wheat in coast saline-alkali soil. The blended fertilizer contains the following components in parts by mass: 2000-3600 parts of a humic acid conditioner, 60-100 parts of common urea, 200-280 parts of sulfur and resin controlled-release urea, 500-900 parts of calcium superphosphate, 50-100 parts of a potassium sulfate fertilizer, 5-15 parts of a zinc sulfate fertilizer and 5-15 parts of a borax fertilizer. The special formula fertilizer for wheat is prepared according to the salinity content situation of the coast saline-alkali soil and the characteristics of high alkalinity, low effective phosphorus content and extremely high rapidly available potassium content; the fertilizer has the soil effects that the pH value of the soil is adjusted, the salt damage is retarded, the formation of soil aggregates is promoted, and the soil moisture is preserved; the fertilizer has the characteristics that the controlled release of nutrients is realized, the fertilizer efficiency is improved, the soil does not need to be topdressed once fertilized, and finally, the effects of improving the soil, increasing the yield and effect and saving the labor force are achieved; and the fertilizer has relatively good ecological, economic and social benefits.

Description

technical field [0001] The invention relates to a special functional organic-inorganic controlled-release blended fertilizer for wheat in coastal saline-alkali land, and belongs to the technical field of special fertilizer for crops with functionality. Background technique [0002] There are many coastal saline-alkali lands in my country, with a total area of ​​about 9900×10 4 hm 2 , and the area of ​​mild saline-alkali land has an increasing trend. At present, the country is developing grain field projects in coastal saline land, especially in the Bohai Yellow River Delta. Wheat, corn, rice, etc. are the main food crops it develops. Due to the influence of the total salinity of the soil, the use of coastal saline-alkali land as soil resources in agricultural production is limited. At present, the main physical measures for improving saline-alkali land include sand spreading, covering, laying underground pipes for drainage, and building greenhouses under the film, etc. Ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05B1/02C05G3/80C05C9/00C05D1/02C05D9/02C05F11/02
Inventor 陈宝成诸葛玉平朱家辉王晓琪周华敏梁海刘之广王淳李成亮
Owner SHANDONG AGRICULTURAL UNIVERSITY
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