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Synchronous nutrition controlled-release fertilizer specially used for litchis

A technology of controlled-release fertilizer and nutrition, which is applied in the field of slow/controlled-release fertilizer and controlled-release fertilizer, which can solve the problems of unfavorable litchi industry development, reduced economic benefits, and high production cost of controlled-release fertilizers, so as to improve the quality of litchi and increase economic benefits , the effect of improving the utilization rate

Inactive Publication Date: 2013-01-16
CNOOC FUDAO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high production cost of controlled-release fertilizer, using it alone in litchi production will reduce its economic benefits, which is not conducive to the development of litchi industry

Method used

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  • Synchronous nutrition controlled-release fertilizer specially used for litchis
  • Synchronous nutrition controlled-release fertilizer specially used for litchis
  • Synchronous nutrition controlled-release fertilizer specially used for litchis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] raw material:

[0024]

[0025]

[0026] Put the above-mentioned raw materials into the blender together, mix thoroughly, and then send the mixed fertilizer into the metering and packaging machine for metering and packaging. The total nutrient content of the obtained lychee-specific nutrient synchronous controlled-release fertilizer: nitrogen, phosphorus pentoxide, and potassium oxide are 20%, 8%, and 16% respectively, all of which are percentages by mass. Among them, water-soluble nitrogen: nitrogen with a fertilizer effect period of 60 days = 1:0.4.

Embodiment 2

[0028] raw material:

[0029]

[0030] Put the above-mentioned raw materials into the blender together, mix thoroughly, and then send the mixed fertilizer into the metering and packaging machine for metering and packaging. The total nutrient: nitrogen, phosphorus pentoxide and potassium oxide content proportions of the obtained litchi special nutrient synchronous controlled release fertilizer are 19%, 9% and 17% respectively, all of which are percentages by mass. Wherein water-soluble nitrogen: the nitrogen of fertilizer effect period 45 days=3.0.

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Abstract

The invention relates to a synchronous nutrition controlled-release fertilizer specially used for litchis. The controlled-release fertilizer is prepared by evenly mixing reaction film forming polymer sulfur coated urea with 30-90 days of release period, urea, diammonium phosphate, calcium magnesium phosphate, potassium chloride and borax. The synchronous nutrition controlled-release fertilizer is simple in technology; due to the nutrient releasing characteristic of the controlled-release fertilizer and the nutrient absorbing law of the litchis, the single controlled-release fertilizers with different release periods and partial quick-acting fertilizers are compounded with each other; and the nutrients are scientific in proportion, so that the synchronous nutrition controlled-release fertilizer not only has the long residual action, but also has the quick-acting property and the special effects of microelement; the nutrients can be released in the whole tree-age growth cycle, the nutritional conditions of the litchi growth period can be obviously improved, the use ratio and the fertilizer efficiency of the fertilizer can be greatly improved, and the problem of high cost caused by the independent use of controlled-release fertilizer can be solved, thus, not only the production cost can be reduced, but also the economic benefit can be improved, and the synchronous nutrition controlled-release fertilizer is wide in application prospect.

Description

technical field [0001] The invention belongs to the technical field of slow / controlled release fertilizers, and relates to a controlled release fertilizer, in particular to a nutrient synchronous controlled release fertilizer specially used for litchi containing controlled release nitrogen. Background technique [0002] China is the country of origin of litchi and the largest producer in the world. The cultivated area and output of litchi (Litchi chinensis Sonn.) account for 81% and 70% of the world respectively. play an important role in the industrial structure. Due to the high economic and nutritional value of the fruit, consumption has increased dramatically. For a long time, although litchi cultivation technology has been greatly developed, most of the fruit farmers use traditional fertilizers for fertilization. There are many problems in the use of these fertilizers. The amount of fertilizers has increased rapidly, but the output has not increased accordingly. At th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/08C05G3/90
Inventor 曲均峰沈兵付玉娥王国忠陈杰程锐
Owner CNOOC FUDAO
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