Multifunctional selenium-enriched controlled-release special fertilizer for rice

A multi-functional, special-purpose fertilizer technology, applied in the direction of application, fertilization equipment, fertilizer mixture, etc., can solve the problems of field runoff water and soil pollution, large residual amount of inorganic selenium, polluted soil and water sources, etc., and achieve a significant effect of increasing production and improving Reasonable effect of fertilizer utilization rate and nutrient distribution ratio

Active Publication Date: 2014-09-03
STANLEY AGRI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]1. Increase the cost of fertilizer use, because foliar spraying requires a relatively high content of selenium fertilizer, such as in the Chinese patent CN ZL01144575.0 "Selenium-enriched Plant Nutrition Regulator" The content of selenic acid or selenite is 4-25%;
[0005]2. Pollution of soil and water sources, because foliar fertilizer spraying can easily cause selenium fertilizer to fall into the ground, which will easily cause certain pollution to field runoff water and soil;
[0006]3. Poor safety, foliar

Method used

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  • Multifunctional selenium-enriched controlled-release special fertilizer for rice
  • Multifunctional selenium-enriched controlled-release special fertilizer for rice

Examples

Experimental program
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Example Embodiment

[0038] Example 1:

[0039] Prepare multifunctional selenium-enriched slow-release rice special fertilizer, the total nutrient content is 44%, nitrogen, phosphorus and potassium (N-P 2 o 5 -K 2 O) content is 21%, 13%, 10%, selenium content ≥ 0.2%, zinc content ≥ 0.2%, silicon content ≥ 0.2%, in addition to other medium and trace elements needed for crop growth.

[0040] The raw material components are as follows in mass percent: 138 parts of 3% chitosan-coated compound fertilizer, 340 parts of 4% chitosan-coated compound fertilizer, 200 parts of 5% chitosan-coated compound fertilizer, sulfur water-soluble polymer 80 parts of double-coated urea, 74 parts of potassium chloride, 90 parts of monoammonium phosphate, 50 parts of sodium selenite, 8 parts of EDTA chelated zinc, 15 parts of calcium magnesium phosphate fertilizer, and 5 parts of borax;

[0041] Put the above-mentioned raw materials into a blender and stir for 5-10 minutes, fully mix, then measure and pack to obtain t...

Example Embodiment

[0042] Example 2:

[0043] Prepare multifunctional selenium-enriched slow-release rice special fertilizer, the total nutrient content is 44%, nitrogen, phosphorus and potassium (N-P 2 o 5 -K 2 O) content is 21%, 14%, 9%, selenium content ≥ 0.2%, zinc content ≥ 0.2%, in addition to other trace elements needed for crop growth.

[0044] The raw material components are as follows in mass percent: 90 parts of 3% chitosan-coated compound fertilizer, 280 parts of 4% chitosan-coated compound fertilizer, 220 parts of 5% chitosan-coated compound fertilizer, sulfur water-soluble polymer 130 parts of double-coated urea, 80 parts of potassium chloride, 120 parts of monoammonium phosphate, 45 parts of sodium selenite, 15 parts of EDTA chelated zinc, 10 parts of calcium magnesium phosphate fertilizer, and 10 parts of borax;

[0045] Put the above-mentioned raw materials into a blender and stir for 5-10 minutes, fully mix, then measure and pack to obtain the finished product.

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Abstract

The invention provides a multifunctional selenium-enriched controlled-release special fertilizer for rice. The fertilizer is prepared from the following raw materials in parts by weight: 80-200 parts of 3% chitosan coated compound fertilizer, 200-450 parts of 4% chitosan coated compound fertilizer, 50-350 parts of 5% chitosan coated compound fertilizer, 50-200 parts of sulphur water soluble polymer double coated urea, 50-150 parts of potassium chloride, 50-260 parts of monoammonium phosphate, 30-70 parts of sodium selenite, 5-20 parts of EDTA (Ethylene Diamine Tetraacetic Acid) Chelating zinc, 8-30 parts of calcium magnesium phosphate fertilizer and 2-15 parts of borax. The fertilizer provided by the invention is reasonable in proportion of nutrients. By adopting chitosan as a coating material and adding microelements such as silicon and zinc, the cultivation of resilience of rice is enhanced, and the yield-increasing effect is remarkable. As the element selenium is added, the quality of rice products is remarkably improved. The fertilizer is applied once without topdressing all over the year, thereby saving labor and effort.

Description

technical field [0001] The invention relates to the technical field of functional fertilizers, in particular to a special fertilizer for multifunctional selenium-enriched slow-release rice. Background technique [0002] Selenium is one of the 14 essential trace elements for the human body. It is known as "the fire of life", "the patron saint of the heart" and "the king of anti-cancer". Recognition ability, improve the synthesis of immune system cell antibodies, the proliferation of T cells, the level of antibodies in the blood, and double the phagocytosis and bactericidal ability of macrophages, thereby enhancing the immune function of the human body. Animal experiments have found that selenium can reduce the acute injury of aflatoxin B1, reduce the degree of hepatic central lobular necrosis and mortality. Selenium has a strong affinity with certain heavy metal elements, and combines with metals such as mercury and cadmium in the body to form metal selenoprotein complexes t...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 解学仕周丽赵玉平王志勇孙士俊张茹萍
Owner STANLEY AGRI GRP CO LTD
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