Water-saving irrigation method by applying slurry to rice field

A technology of rice bran ash mixed slurry and paddy fields, which is applied in botany equipment and methods, watering devices, horticulture, etc., can solve the problems of large difference in seepage rate of paddy fields, difficult implementation by farmers, poor practicability, etc., and achieve effective Conducive to environmental protection, reducing the amount of chemical fertilizers, low cost effect

Inactive Publication Date: 2006-04-19
江苏省水利科学研究所
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Problems solved by technology

my country has a vast territory, great differences in soil texture, coupled with the combined effect of groundwater and other factors, the seepage rate of paddy fields also varies greatly, generally the seepage rate is 5-15mm / d, and as little as 1.5mm / d , many can exceed 20mm / d, and the seepage accounts for 30% to 70% of the total water consumption of rice. Therefore, if the seepage of rice can be reduced, the purpose of water saving will be achieved, and some anti-seepage currently used Leakage methods, such as the compaction method, have a large workload and need to be repeatedly operated by large-scale compaction machinery and farming equipment, which is not only poor in practicability, but also high in cost, and difficult for ordinary farmers to implement. Therefore, a simple and easy method is urgently needed. Water-saving irrigation method to solve the seepage problem in paddy fields

Method used

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with embodiment.

[0024] A water-saving irrigation method for paddy field mixing, through changing the soil structure of the paddy field, reducing the soil permeability coefficient, so as to achieve the purpose of irrigation and water saving, now the permeability coefficient is 10 -2 ~10 -4 The sandy soil and sandy loam paddy field between cm / s are taken as an example to illustrate the operation method and water saving effect. The specific method is:

[0025] a, using rice bran as a raw material, incinerating it at a temperature of 600° C. to obtain a slurry of rice bran ash, which is cooled to normal temperature for subsequent use;

[0026] B, before soaking in the field, spread the above-mentioned normal temperature rice bran ash mixed slurry evenly on the surface of the paddy field to a thickness of about 4mm;

[0027] c. Carry out rotary tillage on the above-mentioned paddy fields paved with ri...

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Abstract

A water-saving irrigation method by applying sludge for rice field includes such steps as burning rice husk, mixing its ash with water, cooling, uniformly spread on the surface of rice field, rotary ploughing, immersing the field in water for at least 12 hr, and rotary ploughing again.

Description

technical field [0001] The present invention relates to a water-saving irrigation method for paddy fields, in particular to a water-saving method that does not change the traditional paddy planting process by performing anti-seepage treatment on paddy fields before planting, specifically a water-saving irrigation method for paddy field mixing method. Background technique [0002] my country is the oldest rice planting country in the world, with a rice farming history of about 7,000 years, and is one of the origins of cultivated rice in the world. my country's existing rice planting area is about 500 million mu, accounting for 30% of the sown area of ​​food crops, and it is the main food crop in my country. At the same time, my country is also a country that is very short of water resources, with a total of 280 million cubic meters of water resources. Accounting for only 5.6% of the world's total water resources, it is one of the 13 water-poor countries in the world. At pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G25/00
Inventor 黄俊友
Owner 江苏省水利科学研究所
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