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Ananas comosus controlled-release fertilizer and preparation method thereof

A technology of controlled release fertilizer and fertilization method, which is applied in fertilization methods, fertilization devices, fertilizer mixtures, etc., can solve problems such as difficulty in fertilization operation, and achieve obvious effects of increasing production, improving coloring, and improving sugar content.

Inactive Publication Date: 2013-06-26
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially after the pineapple closed, the field is very dense, forming a certain self-shade environment, and it is very difficult to fertilize

Method used

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  • Ananas comosus controlled-release fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Example 1: Special controlled-release fertilizer for pineapple

[0073] Mix the raw materials with a particle size of 2-5 mm according to the following ratio to obtain a special controlled-release fertilizer for pineapple:

[0074] 120 parts of coated urea (release period 60 days) of reaction film formation;

[0075] 250 parts of urea;

[0076] 100 parts of diammonium phosphate;

[0077] 150 parts of film-forming coated potassium sulfate (release period 120 days) by reaction;

[0078] 400 parts of potassium sulfate;

[0079] 10 parts of magnesium sulfate;

[0080] In the pineapple-specific controlled-release fertilizer, the mass ratio of nitrogen, phosphorus pentoxide and potassium oxide is 1:0.4:1.5.

Embodiment 2

[0081] Example 2: Special controlled-release fertilizer for pineapple

[0082] Mix the raw materials with a particle size of 2-5 mm according to the following ratio to obtain a special controlled-release fertilizer for pineapple:

[0083] 150 parts of coated urea (release period 60 days) of reaction film formation;

[0084] 280 parts of urea;

[0085] 70 parts of diammonium phosphate;

[0086] 190 parts of film-forming coated potassium sulfate (release period 120 days) by reaction;

[0087] 410 parts of potassium sulfate;

[0088] 15 parts of magnesium sulfate;

[0089] In the pineapple-specific controlled-release fertilizer, the mass ratio of nitrogen, phosphorus pentoxide and potassium oxide is 1:0.3:1.5.

Embodiment 3

[0090] Example 3: Special controlled-release fertilizer for pineapple

[0091] Mix the raw materials with a particle size of 2-5 mm according to the following ratio to obtain a special controlled-release fertilizer for pineapple:

[0092] 200 parts of coated urea (release period 60 days) of reaction film formation;

[0093] 250 parts of urea;

[0094] 100 parts of diammonium phosphate;

[0095] 200 parts of film-forming coated potassium sulfate (release period 60 days) by reaction;

[0096] 350 parts of potassium sulfate;

[0097] 15 parts of magnesium sulfate;

[0098] In the pineapple-specific controlled-release fertilizer, the mass ratio of nitrogen, phosphorus pentoxide and potassium oxide is 1:0.4:1.4.

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Abstract

The invention discloses an ananas comosus controlled-release fertilizer and a preparation method thereof. The controlled-release fertilizer is prepared by compounding ingredients, such as reactive film forming and enveloping urea with 4% enveloping quantity and 5% enveloping quantity (at different nutrient release periods), urea, diammonium phosphate, potassium sulfate and borax. The special nutrition-synchronized controlled-release fertilizer for ananas comosus, disclosed by the invention, is compounded according to the characteristics, nutrient demand law and required nutrient elements of the normal growth, development and cultivation of ananas comosus, nutrients required by ananas comosus can be supplied continuously and synchronously, the needs of three key elements, namely nitrogen, phosphorus and potassium, and a nutrient element, namely boron, in a yearly growth period of ananas comosus are met, and the fertility is more lasting, so that the plant body resistance is effectively adjusted, the diseases are reduced, the yield is increased, the quality of crops is greatly improved, and the mouth feel of ananas comosus is good; the problem of high cost caused by the fact that the controlled-release fertilizer is used alone is solved; and meanwhile, the fertilization times can be decreased by 1-2 times, so that the labor intensity is reduced.

Description

technical field [0001] The invention belongs to the technical field of slow / controlled release fertilizers, and relates to a pineapple controlled release fertilizer and a preparation method thereof. Background technique [0002] Pineapple (Ananas comosus), native to Brazil and Paraguay in South America, is distributed in tropical and subtropical regions, covering more than 70 countries and regions around the world. The status of pineapple in the production and trade of tropical fruits is second only to banana and mango, and it is one of the important economic crops in Central and South America and the Asia-Pacific region. my country is one of the largest pineapple producing countries in the world. It is mainly planted in Guangdong, Hainan, Taiwan, Guangxi and other places. Among them, Guangdong and Hainan have a relatively large mainland area, with a wide distribution and a large output. Pineapple is rich in nutrients and contains almost all the vitamins and 16 natural mine...

Claims

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Application Information

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IPC IPC(8): C05G3/08A01C21/00C05G3/90
Inventor 曲均峰沈兵付玉娥王国忠程锐
Owner CHINA NAT OFFSHORE OIL CORP
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