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Ecological slow release fertilizer special for wheat and preparation method thereof

A slow-release fertilizer, wheat technology, applied in the application, nitrogen fertilizer, potassium fertilizer and other directions, can solve the problems of difficult degradation of coated materials, limited large-scale use, and expensive coated fertilizers, so as to facilitate absorption, improve soil nutrient status, avoid Premature aging and de-fat effects

Inactive Publication Date: 2017-02-08
ANHUI SIERTE FERTILIZER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In response to these problems, a variety of coated slow-release fertilizers have been developed at home and abroad. Although the release of nutrient elements can be controlled to a certain extent, these coating materials are generally difficult to degrade by themselves, causing soil pollution and expensive price restrictions for coated fertilizers. its large-scale use

Method used

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  • Ecological slow release fertilizer special for wheat and preparation method thereof
  • Ecological slow release fertilizer special for wheat and preparation method thereof
  • Ecological slow release fertilizer special for wheat and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] In the present embodiment, a special slow-release fertilizer for ecological wheat comprises the following raw materials by weight percentage: urea 13%, monoammonium phosphate 35%, potassium chloride 17%, ammonium phosphorus 8%, phosphoric acid 1%, liquid ammonia 5% %, concentrated sulfuric acid 1%, lignite 10%, nitro humic acid 1%, modified cassava flour 4%, amino acid chelated zinc 0.5%, zinc sulfate 1%, borax 0.5%, ferrous sulfate 0.5%, manganese sulfate 1%, ammonium molybdate 0.3%, fertilizer synergist 0.2%, zeolite powder 1%;

[0027]Wherein, the preparation method of the modified cassava flour comprises: adding water to the cassava flour and raising the temperature to 50°C, stirring until a paste is formed, adding ferrous sulfate and stirring evenly, and then adding hydrogen peroxide with a content of 32wt% dropwise, and the process is completed within 5 minutes Add dropwise, after stirring evenly, add a sodium hydroxide solution with a content of 35wt%, adjust the...

Embodiment 2

[0034] In the present embodiment, a special slow-release fertilizer for ecological wheat comprises the following raw materials by weight percentage: 15% urea, 28% monoammonium phosphate, 19% potassium chloride, 14% ammonium nitrate phosphorus, 2% phosphoric acid, 2% liquid ammonia %, concentrated sulfuric acid 1%, lignite 6%, nitro humic acid 1%, modified cassava flour 4%, amino acid chelated zinc 0.5%, zinc sulfate 0.5%, borax 1%, ferrous sulfate 0.3%, manganese sulfate 1%, ammonium molybdate 0.2%, fertilizer synergist 0.5%, perlite 4%;

[0035] Wherein, the preparation method of the modified cassava flour comprises: adding water to the cassava flour and raising the temperature to 55° C., stirring until a paste is formed, adding ferrous sulfate and stirring evenly, and then adding hydrogen peroxide with a content of 28 wt % dropwise, and the process is completed within 10 minutes. Add dropwise, stir evenly, add sodium hydroxide solution with a content of 30wt%, adjust the pH ...

Embodiment 3

[0043] In the present embodiment, a special slow-release fertilizer for ecological wheat comprises the following raw materials by weight percentage: urea 21%, monoammonium phosphate 35%, potassium chloride 17%, ammonium phosphorus 8%, phosphoric acid 1%, liquid ammonia 2% %, concentrated sulfuric acid 1%, lignite 6%, nitro humic acid 1%, modified cassava flour 4%, amino acid chelated zinc 0.5%, zinc sulfate 0.5%, borax 0.5%, ferrous sulfate 0.3%, manganese sulfate 1%, ammonium molybdate 0.1%, fertilizer synergist 0.1%, porous auxiliary material 1%;

[0044] Wherein, the preparation method of the modified cassava flour comprises: adding water to the cassava flour and raising the temperature to 52°C, stirring until a paste is formed, adding ferrous sulfate and stirring evenly, and then adding hydrogen peroxide with a content of 30wt% dropwise, and the process is completed within 7 minutes Add dropwise, after stirring evenly, add a sodium hydroxide solution with a content of 33wt...

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Abstract

The invention discloses an ecological slow release fertilizer special for wheat. The fertilizer comprises the following raw materials (by weight): 13-21% of urea, 28-35% of monoammonium phosphate, 17-24% of potassium chloride, 8-14% of ammonium nitrate phosphate, 1-3% of phosphoric acid, 2-5% of liquefied ammonia, 1-3% of concentrated sulfuric acid, 6-13% of brown coal, 1-5% of nitrohumic acid, 4-10% of modified cassava starch, 0.5-1.5% of zinc-amino acid chelate, 0.5-1% of zinc sulfate, 0.5-1% of borax, 0.3-0.9% of ferrous sulphate, 1-1.5% of manganese sulfate, 0.1-0.3% of ammonium molybdate, 0.1-0.5% of a fertilizer synergist and 1-6% of porous auxiliary material. The ecological slow release fertilizer special for wheat can fully supply nutrients for wheat. Nutrients are complete and supply is lasting. Release of nutrients can be controlled. Topdressing is not required by one-time fertilization, and soil pollution will not be caused. By the use of the fertilizer, quality and yield of wheat are remarkably raised.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a special slow-release fertilizer for ecological wheat and a preparation method thereof. Background technique [0002] Wheat is one of the most important food crops in the world. It is rich in starch, protein and fat, and is also an important source of energy for the human body. About one-third of the world's population uses wheat as a staple food. Countries with high wheat yield per unit area in the world include France, Germany, the United Kingdom, the Netherlands, Denmark, etc., with a yield level of 6500-8200kg.hm2, which is about 2.5-3.0% of the world's average yield times. [0003] In my country, wheat is the second largest food crop after rice. According to the region and production layout, the main production areas are divided into northeast spring wheat area, northwest wheat area, north China winter wheat area, winter wheat area in the middle and lower reaches of th...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05G5/30C05C3/00C05C9/00C05C11/00C05D1/02C05D9/00C05D9/02C05F11/00C05F11/02C05G1/00C05D5/00
Inventor 金政辉董慧徐为宁宋先懿
Owner ANHUI SIERTE FERTILIZER IND
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