Method for improving saline-alkali soil as cultivated soil

A technology for saline-alkali soil improvement and soil cultivation, which is applied in the direction of soil preparation methods, chemical instruments and methods, soil conditioning materials, etc., and can solve problems such as easy soil compaction, affecting soil microbial activities and organic matter conversion, and small porosity

Inactive Publication Date: 2014-02-12
天津市北方园林生态环境工程研究院
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AI Technical Summary

Problems solved by technology

The physical and chemical properties of saline-alkali soil are poor, the porosity is small, the soil is easy to compact, the air permeability and water permeability become poor, a

Method used

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Examples

Experimental program
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Embodiment Construction

[0006] In a moderately saline-alkali soil area near the coast of Cangzhou, with an area of ​​about 5 mu, and a soil salt content of 0.605%, a few pieces of Suaeda salsa sporadically grow on the ground. In spring 2009, 8 kg / mu was planted for Sinna seedlings, and the rotary tiller was harvested in autumn. Screw into the soil with a mixing depth of 30cm, and then apply 3500 kg / mu of coarse organic fertilizer and 20 kg / mu of improver. The preparation of the improver is to first heat 20kg of water to 45°C, and then add 5kg of fulvic acid in turn. , citric acid 8kg, humic acid 15kg, ferrous ammonium sulfate 10kg, stir evenly, when the temperature is kept at about 40 ℃, add Tween 1005kg, finally add water 37kg, continue stirring for 10 minutes, add this in the 5 mu field of the experiment Improvement agent 100kg, rotary tiller rotated the field twice, and then sowed winter wheat, with an average of 4 more tillers before winter and spring than the adjacent control, and the wheat yield...

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Abstract

The invention provides a method for improving saline-alkali soil as cultivated soil. The method mainly comprises the following steps of firstly planting sesbania in the saline-alkali soil for a season, ploughing the sesbania into the soil for 20cm to 40cm after the sesbania is harvested, then applying the farm manure into the soil for 2500kg to 4500kg per Mu, and applying ammonium ferrous sulfate and one or more of fulvic acid, citric acid, humic acid and tween before planting crops. The water is firstly heated in preparation, the organic materials are sequentially added into the water, finally the ammonium ferrous sulfate is added to be uniformly blended, and the mixture is compensated by water to 100 parts. By adopting the method, the improvement effect is obvious, and the components of the saline-alkaline soil are improved by mainly adjusting the structure and rationalization condition of the saline-alkaline soil. The nutrients of the soil after being improved can be remarkably improved, the salt content is rapidly decreased, the cost is low, simplicity in application is realized, a good cultivation way is maintained, and the improvement method is effective for a long time.

Description

technical field [0001] The invention relates to the field of saline-alkali soil improvement, and is mainly aimed at a method for improving moderate saline-alkali soil into cultivated soil. Background technique [0002] There are about 27 million hectares of saline-alkali land in my country, including 60 million hectares of cultivated land and 21 million hectares of saline-alkali wasteland, which are mainly distributed in the northeast, north, northwest inland areas and coastal areas north of the Yangtze River. The physical and chemical properties of saline-alkali soil are poor, the porosity is small, the soil is easy to compact, the air permeability and water permeability become poor, and the activity of enzymes in the soil is inhibited, which affects the activities of soil microorganisms and the transformation of organic matter. Decrease in soil fertility. Its poor soil properties have brought a great impact on the development of agriculture, directly affecting the quality...

Claims

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Application Information

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IPC IPC(8): A01B79/00A01B79/02C09K17/40C09K109/00
Inventor 魏剑王素君
Owner 天津市北方园林生态环境工程研究院
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