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Special oxygen-evolving fertilizer for promoting rice root growth and regreening and reviving and preparation method thereof

A technology for root growth and special fertilizer, applied in the agricultural field, can solve problems such as shortage, and achieve the effect of reducing fertilizer loss, reducing release rate, and promoting root growth.

Inactive Publication Date: 2016-06-15
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is a lack of fertilizers that provide the nitrogen, phosphorus, potassium, and magnesium nutrients required for rice growth at the same time, and provide the oxygen required for root growth during the turning green tillering stage after rice transplanting

Method used

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  • Special oxygen-evolving fertilizer for promoting rice root growth and regreening and reviving and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 45 parts of urea, 20 parts of calcium superphosphate, 15 parts of potassium chloride, 15 parts of magnesium peroxide, 3 parts of attapulgite powder, 0.3 parts of carboxymethyl cellulose, 1.2 parts of bitter kudzu extract, 0.5 parts of Coptis chinensis extract;

[0024] 1) Mix the urea, calcium superphosphate, potassium chloride and magnesium peroxide in the parts by weight and then pulverize them, pass through a 160 mesh sieve, then add the extracts of bitter kudzu and rhizoma coptis in the parts by weight, stir and mix , and then produce compound granular fertilizer with a diameter of 3-4 mm according to the conventional process;

[0025] 2) Put the above compound granule fertilizer into the drum coating machine, preheat at 30-40°C for 10 minutes, the speed of the coating machine is 55 rpm, spray the attapulgite into the drum after preheating Powder and carboxymethyl fiber solution (concentration 2%), after spraying, control the temperature to be 35-40°C, discharge the...

Embodiment 2

[0027] 50 parts of urea, 23 parts of superphosphate, 11 parts of potassium chloride, 10 parts of magnesium peroxide, 3 parts of attapulgite powder, 0.7 parts of carboxymethyl cellulose, 1.3 parts of bitter kudzu extract, 1.0 part of Coptis chinensis extract;

[0028] 1) After mixing the urea, superphosphate, potassium chloride and magnesium peroxide in the parts by weight, pulverize them, pass through a 150 mesh sieve, then add the extracts of bitter kudzu and rhizoma coptis in the parts by weight, stir and mix , and then produce compound granular fertilizer with a diameter of 3-4 mm according to the conventional process;

[0029] 2) Put the above-mentioned compound granular fertilizer into the drum coating machine, preheat at 30-40°C for 8 minutes, and the speed of the coating machine is 55 rpm, spray the attapulgite into the drum after preheating Powder and carboxymethyl fiber solution (concentration 5%), after spraying, the temperature is controlled to be 35-40 ° C, and the...

Embodiment 3

[0031] 45 parts of urea, 20 parts of calcium superphosphate, 17 parts of potassium chloride, 11 parts of magnesium peroxide, 5 parts of attapulgite powder, 0.5 part of carboxymethyl cellulose, 1.0 part of bitter kudzu extract, 0.5 part of Coptis chinensis extract;

[0032] 1) After mixing the urea, superphosphate, potassium chloride and magnesium peroxide in the parts by weight, pulverize them, pass through a 120-mesh sieve, then add the extracts of bitter kudzu and coptis chinensis in the parts by weight, stir and mix , and then produce compound granular fertilizer with a diameter of 3-4 mm according to the conventional process;

[0033] 2) Put the above compound granule fertilizer into the drum coating machine, preheat at 30-40°C for 5 minutes, the coating machine speed is 55 rpm, spray the attapulgite into the drum after preheating powder and carboxymethyl fiber solution (concentration 5%), after spraying, the temperature is controlled to be 35-40° C., discharged after 22 m...

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Abstract

This invention provides a special oxygen-evolving fertilizer for promoting rice root growth and regreening and reviving. The raw materials include, by mass, 45-50 parts of urea, 20-23 parts of calcium superphosphate, 12-20 parts of potassium chloride, 10-15 parts of magnesium peroxide, 3-7 parts of attapulgite powder, 0.3-0.7 part of carboxymethyl cellulose, 1.0-1.5 parts of a Pueraria peduncularis extract, and 0.5-1.0 part of a coptis chinensis extract. The special oxygen-evolving fertilizer provided by the invention not only provides the rice growth required nitrogen, phosphorus and potassium nutrients, but also can release oxygen at the regreening and tillering stage to promote rice root growth, promote regreening and reviving and early tillering of transplant rice, and increase the effective panicle number of rice. Magnesium in the fertilizer can alleviate the magnesium deficiency symptom of rice field, and Chinese herbal medicines in the fertilizer can control rice diseases, thereby being conducive to increasing rice yield.

Description

technical field [0001] The invention relates to the technical field of agriculture, in particular to a special oxygen-releasing fertilizer for promoting the growth of rice roots and rejuvenation and a preparation method thereof. Background technique [0002] Oxygen is required for the growth of rice roots. When the supply of oxygen to the root system is insufficient, the growth of the rice root system is inhibited, the germination of new roots is slow, and in severe cases, the root system dies. Poor root growth leads to the weakening of the root system's ability to absorb nutrients and water, and the corresponding aboveground growth of rice is affected. Due to the damage to the root system of the seedlings during transplanting and transplanting of rice, it usually takes 5-7 days or even longer to recover and the roots can germinate new roots after transplanting. This period of time is generally called the greening period. If the rice turns green quickly, the tillering will...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05B1/02C05G3/00C05G5/30C05C9/00C05D1/02C05D5/00C05D9/00
Inventor 朱练峰金千瑜张均华曹小闯禹盛苗
Owner CHINA NAT RICE RES INST
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