Degraded soil ecological simulation land maintenance restoration method

Abstract

The invention discloses a degraded soil ecological simulation land maintenance restoration method which comprises the following steps: mixing any one of crop straws, dry branches and fallen leaves, weeds, humus soil and plant ash with human and animal excrement and urine, and stacking to form a semi-decomposed or decomposed raw material; adding a calcium magnesium phosphate fertilizer, a potash magnesium sulphate fertilizer, polyhalite and / or mineral powder into the semi-decomposed or decomposed raw materials, and uniformly stirring to obtain a mixture; stacking the mixture on the surface of the soil according to a ratio of 300-1000m <3> / mu, flattening, patting, compacting, covering with a film, and stacking; stacking the mixture for at least three months, removing the covering film to obtain a secondary fermentation fertilizer, and then removing at least 98% of the secondary fermentation fertilizer on the surface of the soil to complete remediation of the degraded soil. According to the method, a semi-decomposed or decomposed mixture covers the surface layer of the soil, a special isolation layer is formed by the mixture in a mode of forming humus soil in a simulated nature forest, and the purpose of restoring the soil fertility of the degraded soil is achieved through natural stacking and secondary fermentation treatment.

Description

technical field [0001] The invention belongs to the technical field of land restoration, and in particular relates to an "ecological simulation" restoration method for degraded soil with simple operation, low cost and good restoration effect. Background technique [0002] Soil water and fertilizer retention performance is an important indicator to measure the health of the soil. Tobacco planting soil, Panax notoginseng planting soil, etc., due to continuous cropping, lead to soil degradation phenomena such as soil fertility decline, structural deterioration, increase in the number of pathogenic bacteria, and decrease in the number of beneficial microbial groups. The final performance is that the water and fertilizer retention performance of the soil is reduced, and the growth and appearance of crops are hindered. The production and quality of tobacco leaves and Panax notoginseng declined. Therefore, in the production of crops such as tobacco leaves and Panax notoginseng, it...

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Problems solved by technology

However, since it takes a long time to complete this process naturally, it usually takes 5 to 8 years or even longer without human intervention.

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