Once-applied efficient sustained-release composite base fertilizer

A composite-based, disposable technology, applied in fertilization devices, applications, fertilizer mixtures, etc., can solve problems such as mismatching crop growth needs, unsatisfactory slow-release effects, and difficulty in meeting different needs, to prevent excessive nutrients. The effect of early ineffective loss, continuous and stable fertilizer release, and excellent coating slow release control ability

Active Publication Date: 2014-09-10
辽宁营港锌硼酸科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing slow-release compound fertilizers still have certain shortcomings, mainly in that the nutrient ratio is relatively fixed, and it is difficult to meet the different needs of various soils and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0012] Example

[0013] The compound fertilizer of this embodiment is made from the following raw materials in parts by weight (kg): 1250 mesh diatomite 15, dried cow dung 18, rice bran 10, urea 22, monoammonium phosphate 18, superphosphate 10, vegetable glue 2 , Animal Glue 3, Basalt Powder 2, Potassium Chloride 12, Black Soil 8, Copper Sulfate 1, Zinc Sulfate 4, Masson Pine Needle 5, Pregelatinized Tapioca Starch 15, Polyvinyl Alcohol 8, Glycerin 5, Highly Active Zinc Oxide 0.1, Magnesium sulfate 5, egg shell 2, auxiliary agent 5; the auxiliary agent is made of the following raw materials in parts by weight: poultry feather 15, 40% sulfuric acid solution 35, appropriate amount of sodium hydroxide, keratinase 0.15, copper citrate 2, citric acid Manganese 1, zinc citrate 2, medical stone fine powder 22, sodium silicate 5, the preparation method is as follows: first, poultry feathers are washed with water, sterilized at high temperature, crushed, put into sulfuric acid solution...

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PUM

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Abstract

The invention relates to the field of composite fertilizers, and concretely relates to a once-applied efficient sustained-release composite base fertilizer. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1250-2000 mesh diatomite, 15-18 parts of dry cattle manure, 8-10 parts of rice bran, 20-22 parts of urea, 15-18 parts of monoammonium phosphate, 8-10 parts of calcium superphosphate, 2-3 parts of vegetable gelatin, 1-3 parts of animal gelatin, 1-2 parts of basalt powder, 10-12 parts of potassium chloride, 6-8 parts of black soil, 1-2 parts of copper sulfate, 2-4 parts of zinc sulfate, 4-5 parts of pinus massoniana needles, 12-15 parts of pregelatinized cassava starch, 6-8 parts of polyvinyl alcohol, 4-5 parts of glycerol, 0.1-0.2 part of high-activity zinc oxide, 3-5 parts of magnesium sulfate, 1-2 parts of egg shells and 4-5 parts of an auxiliary agent. The composite fertilizer is wide in raw material sources, low in cost and sufficient in fertility; dual cladding on nutrients is formed by utilizing an efficient sustained-release coating agent prepared from diatomite and multiple film easily-forming raw materials in the preparation technology, so that the fertility is relatively durable, and noneffective loss of nutrients is avoided; and the composite fertilizer is capable of satisfying growth requirements of crops after being applied once, and helps to greatly simplify plantation cost.

Description

technical field [0001] The invention relates to the field of compound fertilizers, in particular to a high-efficiency slow-release compound base fertilizer for one-time application. Background technique [0002] In modern agricultural production, compound fertilizer can be seen everywhere. It has the advantages of high nutrient content, less auxiliary components, high fertilizer utilization rate, and convenient storage and application. It plays an important role in promoting high and stable crop yields. Slow-release compound fertilizer is an important category of compound fertilizers, and it is also the focus of research on the development of my country's chemical fertilizer industry. Its slow-release principle is to coat a thin layer of hydrophobic substances on the surface of fertilizer particles, so that the internal nutrients are slowly released to the In the soil, nutrients are continuously supplied to crops, which effectively improves the utilization rate of fertilizers...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 孙仁贵
Owner 辽宁营港锌硼酸科技开发有限公司
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