Special composite particle slow-release fertilizer for rape, and preparation method thereof

A technology of compound granules and slow-release fertilizers, applied in application, fertilization devices, fertilizer mixtures, etc., to achieve the effects of avoiding premature aging and defertilization, improving quality and yield, and absorbing balance

Active Publication Date: 2012-10-17
ANHUI SIERTE FERTILIZER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]With the development of science and technology, there are more and more types of compound fertilizers in agriculture, and the nutrients contained in them also have their own emphasis, but the special compound granular slow-release fertilizer for rape , has not been reported yet, the present invention provides a special composite particle slow-release fertilizer for rape, which is specially used for the growth process of rapeseed

Method used

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  • Special composite particle slow-release fertilizer for rape, and preparation method thereof
  • Special composite particle slow-release fertilizer for rape, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0033] Weigh 22kg of potassium chloride, 25kg of monoammonium phosphate, 45kg of ammonium chloride, 5kg of urea, and 10kg of slow-release agent

[0034] Attapulgite powder 13kg,

[0035] Prepare as follows:

[0036] (1) Feeding: Add the weighed potassium chloride and monoammonium phosphate into the granulator in proportion; (2) Mix evenly, the speed of the granulator is 50 rpm; (3) Crush: Crush the urea granules; (4 ) Secondary feeding: Add urea, ammonium chloride, and attapulgite powder into the granulator in proportion; (5) Mix uniformly for the second time, inject hot steam intermittently, blow hot air, and the speed of the granulator is 50 rpm; (6) Intermittent spraying of slow-release agent, blowing hot air, and the speed of the granulator is 50 rpm; (7) Screening; (8) Drying; (9) Packing and storage.

[0037] Wherein, the preparation method of sustained release agent is:

[0038] (1) Add 67kg of distilled water into the reactor, heat it to 85-90°C, add 4kg of polyviny...

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Abstract

The present invention provides a special composite particle slow-release fertilizer for rape. The fertilizer comprises the following components, by weight, 22kg of potassium chloride, 25kg of monoammonium phosphate, 45kg of ammonium chloride, 5kg of urea, 10kg of a slow-release agent, and 13kg of an attapulgite powder, wherein the slow-release agent comprises the following components, by weight, 4kg of polyvinyl alcohol, 3kg of formaldehyde, 2kg of bamboo carbon, 12kg of glyceryl ester, 4kg of poly lactic acid, 4kg of an amino resin, and 67kg of distilled water. The special composite particle slow-release fertilizer for the rape in the present invention has the following advantages that: the fertilizer contains a large amount of rich nitrogen, phosphorus, potassium, and other nutrient elements required by rape growth; the nutrients in the fertilizer can be stably released, such that the rape can absorb the nutrients balanced so as to improve yield and quality of the rape; and characteristics of low cost and environment protection are provided.

Description

technical field [0001] The invention relates to the field of agricultural chemical fertilizers, in particular to a special composite granular slow-release fertilizer for rape and a preparation method thereof. Background technique [0002] With the development of science and technology, there are more and more types of compound fertilizers in agriculture, and the nutrients contained in them also have their own emphasis. However, the slow-release fertilizer for rape special granules has not been reported. The present invention provides a special compound granule for rape. Slow-release fertilizer, specially used for the growth process of rapeseed. Contents of the invention [0003] The invention provides a kind of special compound granular slow-release fertilizer for rape and its preparation method. The slow-release fertilizer of the present invention contains a large amount of elements necessary for the growth of rape, such as rich nitrogen, phosphorus and potassium, so th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCY02A40/22Y02P60/21
Inventor 金国清
Owner ANHUI SIERTE FERTILIZER IND
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