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Biodegradation type method for remedying saline-alkali soil

A technology of biodegradation and saline-alkali soil, which is applied in the direction of soil preparation methods, soil conditioning materials, chemical instruments and methods, etc., to achieve the effects of ecological governance, improvement of survival rate, and improvement of particle state

Active Publication Date: 2011-11-16
SHANGHAI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such measures are only suitable for areas with abundant water resources such as coastal areas, and are powerless for facility greenhouses

Method used

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  • Biodegradation type method for remedying saline-alkali soil
  • Biodegradation type method for remedying saline-alkali soil
  • Biodegradation type method for remedying saline-alkali soil

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] Laboratory seed germination test of the improver of the present invention

[0020] Experimental treatment:

[0021] Treatment 1 (T1CK): control

[0022] Treatment 2 (T2): PGA: 40ppm

[0023] Treatment three (T3): PGA: 400ppm

[0024] Treatment four (T4): PGA: 50-70%, urea: 25-35%

[0025] Treatment Five (T5): PGA: 50-70%, Root Accelerator: 5-15%

[0026] Treatment Six (T6): PGA: 50-70%, Urea: 25-35%, Root Accelerator: 5-15%

[0027] specific operation

[0028] The surface soil of the collection facility greenhouse belongs to heavy saline soil (salt content 0.61%), and the soil is crossed through a 2mm sieve, and is sub-packed into petri dishes (80g in each dish), watermelon seeds are implanted, and the improvement agent (each dish) is watered. 20ml). Set three repetitions, put into the constant temperature incubator, cultivate for 7 days (wherein the interval of watering the improver twice is three days), observe the germination situation every day, and make reco...

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Abstract

The invention relates to a technology of preventing soil salinization, in particular to a method for improving soil salinization. The biodegradation type method for improving saline-alkali soil comprises the steps of: firstly, preparing nutrient-supplying agent mother liquor for conditioning soil: mixing according to the mixture ratio of 50-70 percent of high polymer product PGA (poly-gamma-glutamic acid) subjected to microbial metabolism, 25-35 percent of carbamide and 5-15 percent of root-inducing agent, and dissolving the mixture in water to make the mother liquor according to the proportion of 1:15; secondly, diluting the mother liquor obtained in the first step by 300-500 folds, irrigating the mother liquor on the surface of soil before planting, or adding the diluted mother liquor in water used for watering seedlings during the waking period after plant seedlings are transplanted; and thirdly, irrigating the diluted mother liquor again in a week. According to the method provided by the invention, no adverse effect can be caused on the soil, and the method is adaptable to different areas.

Description

technical field [0001] The invention relates to soil salinization prevention technology, in particular, the invention relates to a soil salinization improvement method. Background technique [0002] Salinized soil is an important land resource. It is widely distributed in more than 100 countries and regions around the world, covering an area of ​​more than 1 billion hectares, accounting for about 30% of the total land area. It is distributed in arid regions on all continents of the world. The proportion of saline soil is significantly higher than the world average level. There are about 17 million hectares of saline soil, and nearly 1 / 3 of the irrigation areas have salinization problems. [0003] Saline soil (saline-alkali soil) refers to the chloride, sulfate, bicarbonate, etc. containing potassium, sodium, calcium, and magnesium in the soil; in addition, there are boron salts in the Qinghai-Tibet Plateau, and nitrates in the Turpan Basin; or the soil contains Although the...

Claims

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Application Information

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IPC IPC(8): A01B79/00C09K17/18C09K101/00C09K109/00
Inventor 吕卫光郑宪清李双喜袁大伟钟澂杨建华
Owner SHANGHAI ACAD OF AGRI SCI
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