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Topdressing-free rice special formula fertilizer and preparation method and use method thereof

A formula fertilizer and rice technology, applied in application, phosphate fertilizer, fertilization equipment, etc., can solve problems such as difficulty in mastering technical points, unscientific nutrient distribution ratio, improper fertilizer operation, etc., to suppress the loss of nitrification and denitrification, and reduce fertilization Labor intensity, the effect of fertilizing the soil

Pending Publication Date: 2020-07-31
SHENYANG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the Chinese patent application (application number is 201811246353.4) discloses a method for improving the utilization rate of rice fertilizers. Phosphate fertilizers are all used as base fertilizers, 40% of nitrogen fertilizers are used as base fertilizers, 60% are used as topdressing fertilizers, 50% of potassium fertilizers are used as base fertilizers, and 50% are used as topdressing fertilizers. The fertilization process is cumbersome, and it is difficult to master its technical points. There are often problems such as improper fertilizer operation and unscientific nutrient distribution ratio, which often cause premature aging, green corruption, and lodging, resulting in high agricultural costs and serious losses.

Method used

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  • Topdressing-free rice special formula fertilizer and preparation method and use method thereof
  • Topdressing-free rice special formula fertilizer and preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) urea and potassium sulfate with potassium oxide content of 50% are pulverized by a micro pulverizer and passed through an 80-mesh sieve, and bagged for later use;

[0032] The urea is urea A with a nitrogen content of 46.4%, resin-coated urea B with a release period of 30-40 days, resin-coated urea C with a release period of 60-70 days, and resin-coated urea D with a release period of 100-120 days The mixture, wherein the mass ratio of A, B, C, and D is 10:3:1:0.5, and the nitrogen content of B, C, and D is 44%.

[0033] The potassium sulfate comprises 30% by mass of resin-coated potassium sulfate with a release period of 70-90 days.

[0034] 1) urea and potassium sulfate with potassium oxide content of 50% are pulverized by a micro pulverizer and passed through an 80-mesh sieve, and bagged for later use;

[0035] 2) Select N-P 2 o 5 -K 2 O ratio is 3.52-41.95-1.4 industrial raw materials as phosphorus raw materials;

[0036] 3) Prepare granulation binder mother...

Embodiment 2

[0046] 1) urea and potassium sulfate with a potassium oxide content of 60% are pulverized by a micro pulverizer and passed through an 80-mesh sieve, and bagged for later use;

[0047] The urea is urea A with a nitrogen content of 46.4%, resin-coated urea B with a release period of 30-40 days, resin-coated urea C with a release period of 60-70 days, and resin-coated urea D with a release period of 100-120 days The mixture, wherein the mass ratio of A, B, C, and D is 10:3:1.5:0.3, and the nitrogen content of B, C, and D is 45%.

[0048] The potassium sulfate comprises 35% by mass of resin-coated potassium sulfate with a release period of 70-90 days.

[0049] 1) urea with a nitrogen content of 46.4% and potassium sulfate with a potassium oxide content of 50% are pulverized by a micro pulverizer and passed through an 80-mesh sieve, and bagged for later use;

[0050] 2) Select N-P 2 o 5 -K 2 O ratio is 3.52-41.95-1.4 industrial raw materials as phosphorus raw materials;

[005...

Embodiment 3

[0061] 1) urea and potassium sulfate with potassium oxide content of 50% are pulverized by a micro pulverizer and passed through an 80-mesh sieve, and bagged for later use;

[0062] The urea is urea A with a nitrogen content of 46.4%, resin-coated urea B with a release period of 30-40 days, resin-coated urea C with a release period of 60-70 days, and resin-coated urea D with a release period of 100-120 days The mixture, wherein the mass ratio of A, B, C, and D is 10:3:1.2:0.4, and the nitrogen content of B, C, and D is 44%.

[0063] The potassium sulfate comprises 40% by mass of resin-coated potassium sulfate with a release period of 70-90 days.

[0064] 1) urea with a nitrogen content of 46.4% and potassium sulfate with a potassium oxide content of 50% are pulverized by a micro pulverizer and passed through an 80-mesh sieve, and bagged for later use;

[0065] 2) Select N-P 2 o 5 -K 2 O ratio is 3.52-41.95-1.4 industrial raw materials as phosphorus raw materials;

[0066]...

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Abstract

The invention relates to the technical field of rice fertilizers, in particular to a topdressing-free rice special formula fertilizer and a preparation method and a using method thereof. The preparation method comprises the following steps that an industrial raw material with the N-P2O5-K2O proportion being 3.52-41.95-1.4 is selected as a phosphorus raw material; the topdressing-free rice specialformula fertilizer is obtained by granulating and drying urea, potassium sulfate and the phosphorus raw material by taking a starch cross-linked product as a granulating adhesive and a calcium magnesium phosphate fertilizer as a granulating filler, and is used as a primary base fertilizer without topdressing in the later period. According to the method, the rice yield is greatly increased by onlyapplying the fertilizer once in one season, the rice yield increasing effect is good, the rice yield increasing rate reaches 20.9%, and possibility is provided for simplifying fertilization, reducingthe fertilization labor intensity and increasing the fertilizer utilization rate in modern crop production.

Description

technical field [0001] The invention relates to the technical field of rice fertilizers, in particular to a special formula fertilizer free of topdressing rice and its preparation method and application method. Background technique [0002] Rice is the largest food crop in my country, its sown area accounts for about 27% of the total area of ​​food crops in my country, and rice production accounts for more than 40% of the country's total grain output. Conventional fertilization techniques in rice production often require 1 base fertilizer and 1 to 3 top dressings. For example, the Chinese patent application (application number is 201811246353.4) discloses a method for improving the utilization rate of rice fertilizers. Phosphate fertilizers are all used as base fertilizers, 40% of nitrogen fertilizers are used as base fertilizers, 60% are used as topdressing fertilizers, 50% of potassium fertilizers are used as base fertilizers, and 50% are used as topdressing fertilizers. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/40C05G3/90C05G5/12C05G5/30
CPCC05B13/02
Inventor 吴正超韩晓日兰宇刘宁徐铭泽王月马志明邹殿博李娜孙振涛罗培宇
Owner SHENYANG AGRI UNIV
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