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Compound coated fertilizer containing magnesium ammonium phosphate and preparation method thereof

A magnesium ammonium phosphate, coating technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve problems such as lack of pertinence, and achieve the effect of promoting plant absorption of nutrients, reducing labor, and comprehensive nutrients

Inactive Publication Date: 2016-03-23
陈树东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing coated fertilizers lack pertinence

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] specific implementation plan

[0013] The present invention will be described in detail below through specific examples.

[0014] A composite coated fertilizer containing ammonium magnesium phosphate, prepared from the following raw materials in parts by weight (kg): borax 2, ultrafine polyvinyl alcohol 17, sodium hexametaphosphate 14, magnesium sulfate 10, zinc sulfate 1, phosphorus Mineral powder 15, calcium chloride 9, carboxymethyl cellulose 13, citric acid 2, water hyacinth 56, soybean cake 46, potassium nitrate 15, magnesium ammonium phosphate 13, EM bacterial agent 5, soil conditioner 7, water in proper amount;

[0015] The soil improver is made of the following raw materials in parts by weight (kg): medical stone powder 10, nano-carbon powder 1, gellan gum 4, acetylated monoglyceride 17, yeast selenium 3, copper sulfate 2, zinc gluconate 2. Magnesium chloride 1, ammonium molybdate 2, boric acid 1, dipentaerythritol hexaacrylate 2, vinegar 30, borax 2, eucalyptu...

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PUM

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Abstract

The invention discloses a compound coated fertilizer containing magnesium ammonium phosphate. The fertilizer is characterized by being prepared from, by weight, 2-3 parts of borax, 17-19 parts of ultra-fine polyvinyl alcohol, 14-18 parts of sodium hexametaphosphate, 10-13 parts of magnesium sulfate, 1-2 parts of zinc sulfate, 15-19 parts of phosphorite powder, 9-12 parts of calcium chloride, 13-15 parts of carboxymethyl cellulose, 2-4 parts of citric acid, 56-59 parts of water hyacinth, 46-48 parts of soybean meal, 15-19 parts of potassium nitrate, 13-15 parts of magnesium ammonium phosphate, 5-7 parts of EM inoculant, 7-9 parts of soil ameliorant and a proper amount of water. The fertilizer is comprehensive in nutrient, balanced in nutrition and capable of meeting various requirements of plant growth. The soil ameliorant is added, so that the fertilizer has the synergistic function and the function of promoting nutrient absorption of plants. Added magnesium ammonium phosphate and a coating agent form dual slow release effects, the fertilizer efficiency is lasting and effective, the use amount of the fertilizer is reduced, and work is reduced. The fertilizer is safe, effective, low in cost and suitable for large-area use and popularization.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a composite coated fertilizer containing magnesium ammonium phosphate and a preparation method thereof. Background technique [0002] Coated fertilizers are also called coated fertilizers and film fertilizers. Fertilizers made of quick-acting fertilizer granules wrapped with semi-permeable or impermeable film substances. Film-forming substances include plastics, resins, paraffin, polyethylene and elemental sulfur. The purpose of the coating is to slowly release the quick-acting nutrients in the coated fertilizer after it is applied to the soil, so as to prolong the fertilizer effect. The release rate depends on the type of coating, thickness, particle size, fertilizer solubility, soil temperature, soil water content, and soil microbial activity. It is suitable for crops with high economic value, long growth period, large amount of fertilizer but inconvenient to fertilize in batches,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/00C05G3/80
Inventor 陈树东
Owner 陈树东
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