Formula fertilizer special for ratoon rice

A technology for formula fertilizer and regenerated rice, applied in the field of fertilizers, can solve the problems affecting the safety of full heading and yield in the following regeneration season, incorrect use time of nitrogen fertilizer, and poor control of fertilization time, so as to reduce soil nutrient loss and adjust grades. Simple and easy, the effect of promoting fertilizer use efficiency

Inactive Publication Date: 2021-03-02
HUNAN AGRICULTURAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many rice-specific fertilizers on the market, but few formula fertilizers for ratooning rice, and in practical applications, farmers mainly use urea, while ignoring the combined application of other fertilizers, which affects and limits the yield of ratooning rice. The rice fertilization technology is still in the traditional way, and the germination fertilizer is applied 15-20 days before the harvest of the first season rice.
This operation will cause mechanical damage to the first season rice, which is prone to lodging. Second, it is difficult to control the timing of fertilization, especially if the application time of nitrogen fertilizer is incorrect, which will easily cause the rice to become green and late-maturing, delay the harvest of the first season rice, and affect In order to ensure safe earing and yield in the later regeneration season, we have designed a special formula fertilizer for ratooning rice to solve the above problems

Method used

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  • Formula fertilizer special for ratoon rice

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of preparation method of special formula fertilizer for ratooning rice proposed by the present invention comprises the following steps,

[0022] Select the following raw materials in parts by weight: 200 parts of urea, 150 parts of potassium chloride, 100 parts of organic fertilizer, 20 parts of selenium ore powder, 40 parts of water-retaining agent, 100 parts of calcium peroxide, 40 parts of phosphorus pentoxide and 3 parts of fertilizer .

[0023] S1, grind the weighed granular raw materials such as urea and then dry them, pass through a sieve with a diameter of 5 mm after grinding, and obtain the raw material powder after screening;

[0024] S2, add the remaining raw materials to the raw material powder, and place them in the mixer to mix evenly, and the mixed powder is agglomerated and granulated by humidifying and heating in the tumbling bed through the granulator;

[0025] S3, the obtained granulated material is dried and cooled and then sieved. Those that...

Embodiment 2

[0027] A kind of preparation method of special formula fertilizer for ratooning rice proposed by the present invention comprises the following steps,

[0028] Select the following raw materials in parts by weight: 250 parts of urea, 200 parts of potassium chloride, 200 parts of organic fertilizer, 30 parts of selenium mineral powder, 55 parts of water-retaining agent, 150 parts of calcium peroxide, 60 parts of phosphorus pentoxide, 5 parts of fertilizer .

[0029] S1, grind the weighed granular raw materials such as urea and then dry them, pass through a sieve with a diameter of 5 mm after grinding, and obtain the raw material powder after screening;

[0030] S2, add the remaining raw materials to the raw material powder, and place them in the mixer to mix evenly, and the mixed powder is agglomerated and granulated by humidifying and heating in the tumbling bed through the granulator;

[0031] S3, the obtained granulated material is dried and cooled and then sieved. Those tha...

Embodiment 3

[0033] A kind of preparation method of special formula fertilizer for ratooning rice proposed by the present invention comprises the following steps,

[0034] Select the following raw materials in parts by weight: 220 parts of urea, 180 parts of potassium chloride, 150 parts of organic fertilizer, 25 parts of selenium ore powder, 48 parts of water-retaining agent, 125 parts of calcium peroxide, 45 parts of phosphorus pentoxide, 4 parts of fertilizer .

[0035] S1, grind the weighed granular raw materials such as urea and then dry them, pass through a sieve with a diameter of 5 mm after grinding, and obtain the raw material powder after screening;

[0036] S2, add the remaining raw materials to the raw material powder, and place them in the mixer to mix evenly, and the mixed powder is agglomerated and granulated by humidifying and heating in the tumbling bed through the granulator;

[0037] S3, the obtained granulated material is dried and cooled and then sieved. Those that me...

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Abstract

The invention discloses a formula fertilizer special for ratoon rice. The formula fertilizer is prepared from, by weight, 200-250 parts of urea, 150-200 parts of potassium chloride, 100-200 parts of organic fertilizer, 20-30 parts of selenium ore powder, 40-55 parts of water-retaining agent, 100-150 parts of calcium peroxide, 40-60 parts of phosphorus pentoxide and 3-5 parts of fertilizer retaining agent. According to the formula fertilizer special for ratoon rice provided by the invention, the selenium ore powder is beneficial to supplementing nutritional ingredients in soil, and the water-retaining agent can enhance the water-retaining property of the soil, improve the soil structure, reduce deep water leakage and soil nutrient loss and improve the water utilization rate; and the formulafertilizer contains main nutrients required by rice growth, can better coordinate water-fertilizer-gas balance of rice field soil, promotes rice growth and utilization efficiency of the fertilizer, has great ecological and economic benefits, and is wide and easily available in raw material source, simple in processing process, low in investment, low in production cost and simple and easy in product grade adjustment.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a special formula fertilizer for ratooning rice. Background technique [0002] The ratooning rice refers to the rice that is planted once and harvested twice. After the first season of rice is harvested, the rice piles are used to re-grow seedlings and grow ears, and then harvest for another season. Raising rice is a model of rice cultivation that has a long history of cultivation in China, dating back to 1,700 years ago. Raisoning rice must be planted in areas with suitable temperature, light and water conditions to ensure stable and high-yield ratooning rice, also known as rice grandson. Use mid-season rice or rice stubble after early harvesting to properly fertilize, irrigate, intertill, and weed to promote the germination of lateral buds on the basal nodes and tillering (regenerated tillering). If the temperature is suitable, the germinated regenerated tillers will be a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/80C05G3/90C05G5/12
CPCC05B17/00C05G3/00C05G3/80C05G3/90C05G5/12C05C9/00C05D1/02C05D3/00C05D9/00C05D9/02C05F3/00C05F5/002C05F9/04C05F11/00C05F11/02Y02P60/21Y02A40/22
Inventor 谢桂先李晗荣湘民彭建伟杨俊彦罗功文费讲驰田昌何云龙
Owner HUNAN AGRICULTURAL UNIV
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