Biological remediation method for mango garden soil

Abstract

The invention provides a biological remediation method for mango garden soil, and relates to the technical field of soil remediation. The method comprises the following steps: S1, before crops are planted or after fruit trees are picked, applying 90-150 kg/mu of bio-organic fertilizer, 100-130 kg/mu of silicon-calcium-potassium-magnesium fertilizer, 100-150 kg/mu of organic mixed fertilizer and 30-50 kg/mu of bioremediation agent to soil; s2, planting: firstly applying 10-20kg of bio-organic fertilizer to the bottom layer of each plant, then filling soil, and applying 1.5-2.0 kg of lime at the depth of 50cm; s3, soil turning, wherein before spring shoots, summer shoots and autumn shoots germinate, a layer of bioremediation agent with the mass fraction being 1.0%-8.5% is sprayed to the surface of the soil; s4, in the young fruit expanding period of the fruit trees, 20-35 kg/mu of silicon-calcium-potassium-magnesium fertilizer, 60-180 kg/mu of organic mixed fertilizer and 70-190 kg/mu of biological organic fertilizer are applied to the soil. By degrading soil pollutants through the thalli, soil remediation is accelerated, the soil hardening degree can be reduced, nutrient absorption of crops is promoted, organic waste is fully utilized, and waste is turned into wealth.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a method for soil bioremediation in mango orchards. Background technique [0002] Mangoes are not strict on the soil, but sandy loam or alluvial soil with good drainage and deep soil layer is better, and the pH value is between 4.4 and 7.5. Alkaline or alkaline soil is not suitable for planting mangoes, which may easily cause deficiencies (potassium, potassium, etc.) zinc, magnesium, etc.), but the soil layer is deep (more than 2 meters), the groundwater level is low (less than 3 meters), the drainage is good, and the organic matter is rich. Fertilizer is the material basis for mangoes to grow fast, grow early, and produce high yields. Reasonable fertilization is also one of the essential conditions for high and stable production of mango trees. The soil in my country's mango producing areas is mostly barren sloping red soil or brick red soil. Severe acidification of ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for mango orchard soil bioremediation, which solves the problems of low pH value and insufficient soil fertility in mango planting soil