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Improver for soil of cold waterlogged paddy field and application thereof

A technology of conditioner and cold soaking field, applied in the field of soil conditioner, can solve the problems of complex soil conditioner composition, low effective nutrient content, poor surface soil structure, etc. Advantageous effect

Inactive Publication Date: 2013-11-20
INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The soil conditioner has complex components, many manufacturing processes and high cost
At the same time, the prior art does not provide special amendments for the characteristics of cold soaked field soil (low water and soil temperature, low effective nutrient content, poisoning of reducing substances to crops, poor surface soil structure)

Method used

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  • Improver for soil of cold waterlogged paddy field and application thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037]Example 1 This experiment is arranged in the Plant Protection Soil and Fertilizer Research Institute of the Hubei Academy of Agricultural Sciences to carry out a simulation experiment on improving the soil structure of the cold-soaked field with the soil structure modifier of the cold-soaked field. 30d, 60d, 90d, 180d, 360d) Sampling and analysis to compare the composition of soil aggregates, the number of large aggregates larger than 1mm and 1-0.25mm increased. Especially by strengthening the alternate management of soil moisture between dry and wet, the number of macroaggregates increased faster. At the same time, the addition of the amendment enhances the conductivity of the soil and reduces the total amount of reducing substances in the cold-soaked field soil by more than 35%.

example 2

[0038] Example 2 This test was arranged in Qianzhuang Village, Maqiao Township, Xian'an District, Xianning City, Hubei Province, and a field evaluation test of the application effect of soil amendments in cold soaking fields was carried out. Specifically, the improver is evenly spread on the soil surface manually or mechanically, and the rotary tiller is used for tillage, so that the improver is mixed as evenly as possible with the plow layer soil of the cold-soaked field where rice is planted. 2 , the yield of rice without improving agent was 7026kg / hm 2 , the yield of rice with improver is 8089kg / hm 2 , rice, rice production increased by 15.1%.

example 3

[0039] Example 3 This experiment was arranged in Tuku Village, Baisha Town, Yangxin County, Huangshi City, Hubei Province. The evaluation test of the application effect of soil amendments in cold-soaked fields was carried out. Rice was planted in the soil of cold-soaked fields, and 2250kg / hm of amendments were applied when the middle-aged rice was whole. 2 , rice output 6863.5kg / hm 2 , the yield of rice without improving agent was 6231kg / hm 2 , Rice production increased by 10.2%. At the same time, the soil structure after the application of soil amendments was significantly improved. Specifically, soil samples were collected during the rice harvest period to determine the composition of soil aggregates. The results showed that the number of soil macroaggregates (larger than 1mm and 1-0.25mm macroaggregates) increased, The soil physical structure is improved, and the total amount of soil reducing substances is reduced by more than 35%.

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Abstract

The invention discloses an improver for soil of a cold waterlogged paddy field and application thereof, and belongs to the technical field of soil improvers. The improver consists of the following components in percentage by weight: 30 to 40 percent of alkali fly ash, 50 to 60 percent of charcoal, and 2 to 10 percent of polyacrylamide. The improver is mainly applied to the soil of the cold waterlogged paddy field, and is suitable for improvement of gleying paddy soil or infertile paddy soil. The embodiment of the invention provides a soil improver for the soil of the cold waterlogged paddy field by aiming at the soil characteristic of the cold waterlogged paddy field, and the improver is pollution-free for the environment and low in cost. Through crop planting experiments, the improver can be used for effectively improving the temperature of the soil of the cold waterlogged paddy field, the quantity of big aggregates of the soil and the content of effective nutrients of the soil, reducing the total amount of reductive substances of the soil by more than 35 percent and increasing the yield of crops by more than 10 percent, and is very obvious in soil improvement effect.

Description

technical field [0001] The invention belongs to the technical field of soil improver, and in particular relates to a improver for cold-soaked field soil and its application. technical background [0002] China is a country with a large population. Ensuring food supply is a matter of national security and people's safety. China's per capita arable land area is far below the world average. Under the action of different natural conditions and human misconduct, the soil will be degraded, resulting in a continuous decline in soil productivity. With the advancement of urbanization and industrialization in our country, the effective cultivated land area is continuously decreasing. How to protect and restore degraded soil is particularly important. Needed and urgent. Cold soaking field is a kind of paddy field where hills and valleys are soaked by cold water, cold spring or lake beach is soaked by groundwater. It is mainly distributed in mountainous valleys, low-lying hills, low-l...

Claims

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Application Information

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IPC IPC(8): C09K17/40A01B77/00C09K101/00
Inventor 熊又升袁家富徐祥玉
Owner INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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