Preparation method of special disposable mechanically-applied fertilizer for corn

A corn-specific, one-off technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of weak friction resistance, easy breakage, uneven mechanical fertilization, etc.
CN102775232AActive Publication Date: 2012-11-14菏泽金正大生态工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
菏泽金正大生态工程有限公司
Publication Date
2012-11-14

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Abstract

The invention relates to a preparation method of a special disposable mechanically-applied fertilizer for corn. According to the invention, urea, monoammonium phosphate, potassium chloride and zinc sulfate are compounded, a high-tower granulated compound fertilizer is used as the core fertilizer, and double film layers are coated, wherein the inner layer film is a urea film and used for improving the surface characteristic of the fertilizer granules, and the outer layer film is a thermoplastic resin coating and a thermosetting coating and is used for controlling the release of the nutrients. The special mechanically-applied fertilizer for corn has more smooth and harder surface, and is suitable for mechanical application. The fertilizer satisfies the requirements of corn for absorbing nitrogen, phosphorus, potassium, zinc and other nutrients; and the large-scale field test proves that the fertilizer has favorable yield increase effect.
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Description

technical field

[0001] The invention relates to a preparation method of a special disposable machine-applied fertilizer for corn, which belongs to the technical field of fertilizer production and application. Background technique

[0002] Corn is one of the main food crops in my country, and it is also an important feed crop. According to statistics from the National Grain and Oil Information Center, in 2012, the country's corn sown area reached 35 million hectares. Corn cultivation is simple and highly mechanized, and it is one of the crops that farmers like to grow. At present, there is a serious shortage of labor force in rural areas in my country. Field management in corn planting areas mainly relies on the elderly and women over 50 years old. It is urgent to realize the mechanization of operations such as sowing, harvesting, and fertilization. In recent years, in order to meet the needs of corn planting, the mechanization level of corn sowing, harvesting, straw return...

Claims

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