Green and high-yield soil remediation method for navel oranges in old orchard

Abstract

The invention discloses a green and high-yield soil remediation method for navel oranges in an old orchard, and belongs to the field of environmental remediation. The method comprises the steps that the surface of planting soil is covered with a mulching film to block the rainfall leaching effect, meanwhile, the mulching film is sewn into an independent structure, and the mulching film with the independent structure is used for slowly releasing a soil remediation agent to the soil to remedy the soil. In the remediation process, the surface of soil is covered with the mulching film, so that growth of weeds in the soil is avoided, the influence of the weeds on the remediation effect is avoided, meanwhile, the covered mulching film reduces the rainfall leaching effect, diffusion of pollutants in the soil is avoided, a remediation agent is prevented from being diluted, and then the remediation effect is improved through a unitized and independent mulching film structure. Concentrated remediation is conducted in a single area, the contact time of a remediation agent and soil is prolonged, and maximum remediation is achieved.

Description

technical field [0001] The invention belongs to the field of environmental restoration, in particular to a green and high-yield soil restoration method for navel oranges in old orchards. Background technique [0002] The overall situation of the soil environment in the country is not optimistic, the soil pollution in some areas is relatively serious, and the quality of the soil environment of cultivated land is worrying. The over-standard rates of 8 heavy metal pollutants including cadmium, mercury, arsenic, copper, lead, chromium, zinc and nickel were 7.0%, 1.6%, 2.7%, 2.1%, 1.5%, 1.1%, 0.9% and 4.8%, respectively. Among them, the agricultural soil around the mining area is seriously polluted by heavy metals. For humans, on the one hand, the poisonous effect of heavy metals reduces or even eliminates crop production, causing economic losses; Groundwater eventually enters the human body through the food chain, endangering human health. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

Among them, the agricultural soil around the mining area is seriously polluted by heavy metals. For humans, on the one hand, the poisonous effect of heavy metals reduces or even eliminates crop production, causing economic losses; Groundwater will eventually enter the human body through the food chain, endangering human health

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