Special controlled-release fertilizer for citrus and preparation method thereof

A controlled-release fertilizer and citrus technology, applied in the fields of application, nitrogen fertilizer, potassium fertilizer, etc., can solve the problems of short fertilizer efficiency and cannot meet the normal growth of citrus, and achieve the effect of fast growth and improved fruit setting rate

Active Publication Date: 2008-05-21
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 ef

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1:

[0047] The special controlled-release fertilizer for citrus, the total nutrients: nitrogen, phosphorus pentoxide, and potassium oxide content are 18%, 11%, 16%, respectively, by mass percentage. 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 in a mixer and stir for 8 minutes, and mix well to obtain. Then the mixed fertilizer is sent to the measuring and packaging machine for measuring and packaging.

Example Embodiment

[0059] Example 2:

[0060] The special controlled-release fertilizer for citrus, the total nutrients: nitrogen, phosphorus pentoxide, and potassium oxide content are 16%, 11%, 18%, respectively, by mass percentage. 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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PUM

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Abstract

The invention relates to a special controlled release fertilizer for orange and a preparation method thereof and belongs to the technical field of sustained release fertilizer and controlled release fertilizer. According to the rule of the fertilizer requirement of the orange, the invention remixes 6 percent, 7 percent and 8 percent thermoplastic resin coated urea, sulfur coated urea, potassium sulfate complex fertilizer, the potassium sulfate, diammonium phosphate, zinc sulfate and borax exactly to form the special controlled release fertilizer for orange. The nutrient release rule of the controlled release fertilizer is in accordance with the nutrition absorption rule of the orange, which improves the fertilizer absorption and utilization rate and reduces the cost of the controlled release fertilizer, and the effect of production increase is good.

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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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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