Improvement of vegetative salt alkaline land soil
A saline-alkali soil and nutrient-based technology, which is applied in the direction of soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., can solve the problems affecting the increase and growth of microorganisms, earthworms and other animals, and achieve low cost, improved efficacy, and broad The effect of applying the foreground
Inactive Publication Date: 2006-11-01
王莹
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Problems solved by technology
In addition to the impact on microorganisms and enzymes, the return of crop straw to the field also significantly increases animals such as earthworms, thereby affecting the growth of microbial biomass
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0020] Example 1: Severe saline-alkali soil The dosage of the nutritional saline-alkali soil improver is: 3.5 kg of phosphogypsum, 3.0 kg of crop straw, and 0.15 kg of crop nutrient per square meter.
Embodiment 2
[0021] Example 2: Moderately saline-alkali soil The dosage of the nutritional saline-alkali soil improver is: 2.5 kg of phosphogypsum, 2.0 kg of crop straw, and 0.15 kg of crop nutrient per square meter.
Embodiment 3
[0022] Example 3: Slightly saline-alkali soil The dosage of the nutritional saline-alkali soil improver is: 1.5 kg of phosphogypsum, 1.5 kg of crop straw, and 0.15 kg of crop nutrient per square meter.
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The invention includes a kind of alkaline soil ameliorant and the method of its application. The invention provided a kind of soil ameliorant that has good economic performance with rich resources. This method not only can improve the biologic productivity of the soil, the livability of plants and the growth qualities but also has low cost and wider prospect in application. The method of the saline-sodic soil amelioration is used in changing the alkaline saline soil to fertile farmland that is good for growing plants. Through experiment, using that nourishment alkaline soil ameliorant, the soil which had the dissolubility salt content more than 1.0% would make the dissolubility salt content decline to 0.6-0.4% and get lint cotton 45,000 grams in an acre just in one year later; Two after year, the percentage composition of soil solute salt decrease to below 0.3%, besides, this method is useful for the growth of cotton, corn and wheat.
Description
technical field [0001] The invention relates to a soil conditioner, in particular to a soil conditioner for saline-alkali soil and an application method thereof. Background technique [0002] my country has a large area of saline-alkali soil. The total area of saline-alkali soil in the country is 99.13 million hectares, of which 36.93 million hectares are salinized soil, 44.86 million hectares are residual salinized soil, and 17.33 million hectares are potential salinized soil. When the salt content of the surface layer exceeds 0.6%, most plants cannot grow. When the soluble salt content in the soil exceeds 1.0%, only some plants specially adapted to the saline soil can grow. This leads to a large area of saline-alkali soil that cannot meet the growth needs of plants, seriously affects the ecological balance, and is extremely harmful. Therefore, the improvement and utilization of saline-alkali soil, the protection of the ecological environment, and the development of ...
Claims
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IPC IPC(8): C09K17/40
Inventor 王莹
Owner 王莹
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