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Special controlled-release fertilizer for citrus and preparation method thereof

A controlled-release fertilizer and citrus technology, which is applied in the fields of application, nitrogen fertilizer, and potassium fertilizer, can solve the problems of not being able to meet the normal growth of citrus and short fertilizer efficiency, and achieve the effects of saving labor costs, increasing production, and reducing nutrient loss

Active Publication Date: 2008-10-29
广东金正大生态工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Quick-acting chemical fertilizers dissolve quickly and have short fertilizer effects. Unless frequent fertilization, it cannot meet the normal growth of citrus

Method used

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  • Special controlled-release fertilizer for citrus and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Citrus-specific controlled-release fertilizer, total nutrients: nitrogen, phosphorus pentoxide, and potassium oxide content are 18%, 11%, and 16%, respectively, in mass percentages. The raw material components are as follows:

[0048] 6% thermoplastic resin coated urea 25kg

[0049] 7% thermoplastic resin coated urea 40kg

[0050] 8% thermoplastic resin coated urea 35kg

[0051] Sulfur coated urea 250kg

[0052] Potassium sulfate compound fertilizer 300kg

[0053] Potassium sulfate 230kg

[0054] Diammonium phosphate 120kg

[0055] Zinc sulfate 5kg

[0056] Borax 5kg.

[0057] Preparation:

[0058] Put the above-mentioned raw materials together into a blender and stir for 8 minutes, and mix well to get the product. Then the mixed fertilizer is sent to the metering and packaging machine for metering and packaging.

Embodiment 2

[0060] Citrus-specific controlled-release fertilizer, total nutrients: nitrogen, phosphorus pentoxide, and potassium oxide content are 16%, 11%, and 18%, respectively, in mass percentages. The raw material components are as follows:

[0061] 6% thermoplastic resin coated urea 30kg

[0062] 7% thermoplastic resin coated urea 30kg

[0063] 8% thermoplastic resin coated urea 30kg

[0064] Sulfur coated urea 200kg

[0065] Potassium sulfate compound fertilizer 300kg

[0066] Potassium sulfate 280kg

[0067] Diammonium phosphate 120kg

[0068] Zinc sulfate 5kg

[0069] Borax 5kg.

[0070] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a special controlled-release fertilizer for citrus and a preparation method thereof, and belongs to the technical field of slow-release and controlled-release fertilizers. According to the fertilizer requirements of citrus, the present invention precisely compounded 6%, 7% and 8% thermoplastic resin-coated urea, sulfur-coated urea, potassium sulfate compound fertilizer, potassium sulfate, diammonium phosphate, zinc sulfate and borax, Formation of citrus special formula controlled release fertilizer. The nutrient release law of the controlled-release fertilizer coincides with the nutrient absorption law of citrus, improves the absorption and utilization rate of the fertilizer, reduces the cost of the controlled-release fertilizer, and has a good yield-increasing effect.

Description

technical field [0001] The invention relates to a special controlled-release fertilizer for crops produced by coated sulfur and coated thermoplastic resin, in particular to a special controlled-release fertilizer for citrus and a manufacturing method thereof, belonging to the technical field of slow / controlled release fertilizers. Background technique [0002] Citrus is one of the fruit trees with the highest economic value, the most widely cultivated, and the fastest growing in the world. It is the most important economic tree species in agriculture in southern my country. At present, the area of ​​citrus in my country is more than 1.3 million hectares, and the output exceeds 10 million tons. Citrus fruit tastes fragrant and refreshing, and is rich in nutrition. It can not only be eaten fresh, but also processed into juice, jam, canned food, fruit wine, etc. At the same time, essential oils, pectin, citric acid, etc. extracted from citrus are widely used in the food and pha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/08C05C9/00C05D1/02C05D9/00C05B7/00C05G3/90
Inventor 万连步张民吴清伟陈剑秋王仕青
Owner 广东金正大生态工程有限公司
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