Special fertilizer for potatoes applicable to acid soil

A special potato fertilizer and acidic soil technology, which is applied in application, fertilization equipment, fertilizer mixture, etc., can solve the problems of not being able to meet the demand of potato nutrient elements and demand rules, and not suitable for potato growth, so as to prevent the rapid dissolution of nutrients and improve Fertilizer use efficiency, the effect of promoting enrichment

Active Publication Date: 2018-01-26
SINOCHEM YUNLONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a special fertilizer for potatoes suitable for acidic soil, to solve the problem that the acidic soil is not suitable for the growth of potatoes, and the use of existing fertilizers for one-time fertilization cannot meet the requirements of various nutritional elements during the entire growth period of potatoes. The quantity of demand and the law of demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0036] This embodiment provides a special fertilizer for potatoes suitable for acidic soils, especially a slow-release selenium-enriched potato special fertilizer for acidic soils in Southwest China, with a total nutrient content of 39%, N-P 2 o 5 -K 2 The O formula is 14-6-19 (S), and 1.5% CaO, 0.4% MgO, 0.015% Zn, 0.015% B and 0.1% Se are added, and the mass ratio of coated compound fertilizer to uncoated compound fertilizer is 193:807 .

[0037] Modified silica sol accounts for 2% of the total weight of the coated compound fertilizer, polyurethane accounts for 20% of the weight of the modified silica sol, and the coated compound fertilizer is composed of the following raw materials in parts by mass: 624 parts of urea, 312 parts of potassium sulfate, sodium selenate 12 parts, 20 parts of magnesium oxide, 60 parts of clay, 10 parts of 30% solid content polyacrylic acid solution.

[0038] The uncoated compound fertilizer is composed of the following raw materials in parts b...

specific Embodiment 2

[0040] This embodiment provides a special fertilizer for potatoes suitable for acidic soils, especially a slow-release selenium-enriched potato special fertilizer for acidic soils in Southwest China, with a total nutrient content of 42%, N-P 2 o 5 -K 2 O formula is 15-7-20 (S), in addition, 2% CaO, 0.53% MgO, 0.02% Zn, 0.02% B and 0.2% Se are added, and the mass ratio of coated compound fertilizer to uncoated compound fertilizer is 276:724 .

[0041] The coating thickness of the modified silica sol-coated compound fertilizer is 4% of the total amount of the compound fertilizer, hydroxyethyl acrylate accounts for 35% of the modified silica sol, and the coated compound fertilizer is composed of the following raw materials in parts by mass: 592 parts of urea, sulfuric acid 356 parts of potassium, 16 parts of sodium selenate, 10 parts of magnesium oxide, 20 parts of clay, 20 parts of 30% solid content polyacrylic acid solution.

[0042] The uncoated compound fertilizer is compo...

specific Embodiment 3

[0044] This embodiment provides a special fertilizer for potatoes suitable for acidic soils, especially a slow-release selenium-enriched potato special fertilizer for acidic soils in Southwest China, with a total nutrient content of 45%, N-P 2 o 5 -K 2 The O formula is 16-8-21 (S), and 2.5% CaO, 0.67% MgO, 0.025% Zn, 0.025% B and 0.3% Se are added, and the mass ratio of coated compound fertilizer to uncoated compound fertilizer is 377:623 .

[0045] The coating thickness of the modified silica sol-coated compound fertilizer is 5% of the total compound fertilizer, the total weight of polyvinyl alcohol and polyethylene accounts for 50% of the modified silica sol, and the coated compound fertilizer is composed of the following raw materials in parts by mass: urea 531 parts, 425 parts of potassium sulfate, 18 parts of sodium selenate, 5 parts of magnesium oxide, 15 parts of clay, 14 parts of 30% solid content polyacrylic acid solution.

[0046] The uncoated compound fertilizer ...

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Abstract

The invention discloses a special fertilizer for potatoes applicable to acid soil. The special fertilizer for potatoes comprises 19-38 parts of modified silica sol coated composite fertilizer and 62-81 parts of uncoated compound fertilizer, wherein a coating material silica sol in the modified silica sol coated composite fertilizer accounts for 2-5% of the total weight of the composite fertilizer;and the coated composite fertilizer comprises the following raw materials: urea, potassium sulfate, sodium selenate and a granulating agent. The uncoated compound fertilizer comprises the following raw materials: urea, ammonium sulfate, monoammonium phosphate, potassium sulfate, calcium magnesium phosphate fertilizer, zinc sulfate heptahydrate, borax and biotechnology fulvic acid. Acid soil improvement measures are taken, modified silica sol coating sustained-release treatment is performed, and a reasonable formula is confirmed according to potato growth requirements and soil nutrient characteristics. Moreover, medium trace elements are added, and the selenium element is supplemented in a form of modified silica sol coating selenate. The fertilizer disclosed by the invention has the advantages of being capable of improving soil acidity, improving the fertilizer utilization ratio, improving the yield and quality of potatoes and increasing additional value of potato products, time-saving, labor-saving and the like.

Description

technical field [0001] The invention relates to the technical field of functional fertilizers, in particular to potato special fertilizers suitable for acidic soils. Background technique [0002] Potato is the fourth largest food crop in the world. It is rich in high-quality protein, minerals, vitamins, dietary fiber and other nutrients needed by the human body. It is low in calories and fat, and can effectively prevent obesity, diabetes, cerebrovascular, cardiovascular, and depression. and tumors and other diseases, and the taste is good, very popular. [0003] The south is the main potato production area in my country, and its potato planting area accounts for about 50% of the total potato planting area in the country. Potatoes are suitable for growing in acidic soil environments, but aluminum damage, calcium and magnesium nutrient loss and fertilizer utilization caused by over-acidic soils Low yield and other problems have seriously affected the growth and development of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
Inventor 许立盛勇肖尧沙桐陈明凤
Owner SINOCHEM YUNLONG
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