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Fertiliser for culturing rice shoots and method for preparing same

A technology of dry seedling raising and fertilizer, which is applied in the field of rice seedling raising fertilizer and its preparation, can solve problems such as blight and bakanae disease, large-area yellow seedlings, yellow and white flower disease, etc., and achieve well-developed root system, vigorous growth, and use The effect of simple method

Inactive Publication Date: 2010-09-29
安徽天叶肥料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the rice planting industry, the technology of dry rice seedling raising is widely promoted, and the requirements for fertilizer standards are getting higher and higher. At present, farmers use a variety of single-nutrient chemical fertilizers to mix the fertilizers used for rice dry seedling raising. The ratio is improper. It is not easy to master during use, so that large areas of yellow seedlings, dead seedlings, yellow and white flower disease, blight and bakanae disease often occur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix 400kg of ammonium sulfate, 150kg of ferrous sulfate, 100kg of phosphogypsum, 100kg of potassium chloride, and 250kg of monoammonium phosphate, and then pulverize them until the particle size of the material is less than 1mm; put the material into a drum granulator and granulate it with steam , the ball forming rate is 70-90%; the material after steam granulation is sent to the dryer for drying, the furnace temperature is 500-550°C, the kiln head temperature is 500-550°C, and the kiln tail temperature is 80 ~90°C; send the dried material to the cooler to cool the material temperature below 50°C; send the above-mentioned cooled material to the drum sieve for screening, and screen out the material with a particle size of 1-4.75mm It can be packed into 5kg or 10kg bags.

Embodiment 2

[0024] Mix 600kg of ammonium sulfate, 50kg of ferrous sulfate, 50kg of phosphogypsum, 150kg of potassium chloride, and 150kg of monoammonium phosphate, mix and stir evenly, and then pulverize the material until the particle size of the material is less than 1mm; put the material into a drum granulator and use steam for granulation , the ball forming rate is 70-90%; the material after steam granulation is sent to the dryer for drying, the furnace temperature is 500-550°C, the kiln head temperature is 500-550°C, and the kiln tail temperature is 80 ~90°C; send the dried material to the cooler to cool the material temperature below 50°C; send the above-mentioned cooled material to the drum sieve for screening, and screen out the material with a particle size of 1-4.75mm It can be packed into 5kg or 10kg bags.

Embodiment 3

[0026] Mix 500kg of ammonium sulfate, 100kg of ferrous sulfate, 150kg of phosphogypsum, 50kg of potassium chloride, and 200kg of ammonium phosphate, mix and stir evenly, and then pulverize the material until the particle size is below 1mm; put the material into a drum granulator and granulate with steam , the ball forming rate is 70-90%; the material after steam granulation is sent to the dryer for drying, the furnace temperature is 500-550°C, the kiln head temperature is 500-550°C, and the kiln tail temperature is 80 ~90°C; send the dried material to the cooler to cool the material temperature below 50°C; send the above-mentioned cooled material to the drum sieve for screening, and screen out the material with a particle size of 1-4.75mm It can be packed into 5kg or 10kg bags.

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Abstract

The invention relates to a fertilizer for rice dry seedling and a preparation method thereof. The preparation method comprises the following steps: mixing ammonium sulfate, ferrous sulfate, phosphogypsum, potassium chloride and monoammonium phosphate, blending uniformly, pulverizing to obtain materials with a granularity less than 1 mm; granulating the materials with vapor in a drum granulator toachieve the granulation rate up to 70 to 90%; oven-drying the granulated materials into a drier with the furnace temperature of 500 to 550 DEG C, the head kiln temperature of 500 to 550 DEG C and thetail kiln temperature of 80 to 90 DEG C; cooling the dried materials in a cooler to reduce the temperature of the materials below 50 DEG C; sieving the cooled materials in a drum grading sieve to obtain materials with the granularity of 1 to 4.75 mm; and packaging in bags. The fertilizer contains nitrogen, phosphorus, potassium and trace elements, not only can prevent the occurrence of diseases such as large-area yellowing and death of seedlings, yellow mosaic, sheath blight and bakanae but also can promote the growth of the rice root system, improve the utilization rate of the fertilizer andensure the yield and the income increase of high-quality rice. The preparation method has the advantages of simple process, convenient operation, reduced cost, labor saving and remarkable effect.

Description

technical field [0001] The invention relates to an agricultural fertilizer, in particular to a fertilizer used for dry rice seedling raising and a preparation method thereof. Background technique [0002] With the rapid development of the rice planting industry, the technology of dry rice seedling raising is widely promoted, and the requirements for fertilizer standards are getting higher and higher. At present, farmers use a variety of single-nutrient chemical fertilizers to mix the fertilizers used for rice dry seedling raising. The ratio is improper. It is not easy to master in use, so diseases such as large area yellow seedlings, dead seedlings, yellow and white flower disease, blight and bakanae disease often occur. Contents of the invention [0003] The purpose of the present invention is to provide people with a kind of nitrogen-containing, phosphorus, potassium and trace elements for the existing defects of rice seedling bed fertilization in dry-raised seedlings, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/06C05C3/00C05B7/00
Inventor 郭永明
Owner 安徽天叶肥料有限公司
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