Rapid ecological restoration method for facility greenhouse soil

Abstract

A rapid ecological restoration method for facility greenhouse soil comprises the following steps: (1) at the beginning of May, shallow plowing, sun exposure and yellow water irrigation; (2) in the middle ten days of May, scattering a mixed fermentation material of waste distiller's grains, a straw-decomposing inoculant and sugar-making waste liquid on the surface of soil, deeply ploughing, and exposing to the sun; (3) in the middle ten days of June, scattering biochar on the surface of soil, irrigating the land with yellow water, and ploughing; (4) in the middle ten days of July, applying gamma-polyglutamic acid liquid, bio-organic fertilizer and wine fermentation waste residues, and ploughing; (5) in the middle ten days of August, applying a soil conditioner and an amino acid nutrient liquid fertilizer; (6) at the beginning of September, applying a carbon-soluble organic fertilizer, and deeply ploughing; and (7) in late September, sprinkling yellow water on the surface of the soil. The method disclosed by the invention can efficiently utilize organic wastes, inhibit harmful microorganisms in soil, regulate physical and chemical properties of the soil, improve the soil structure, facilitate production and income increase, and is green, environment-friendly, low in cost, efficient and suitable for agricultural production.

Description

technical field [0001] The invention relates to a rapid ecological restoration method of soil, in particular to a rapid ecological restoration method of facility greenhouse soil. Background technique [0002] With the long-term planting of facility greenhouses, it is inevitable that the soil ploughing layer or the ploughing layer will become shallower, lack of organic matter, decrease the number of beneficial microorganisms, soil compaction, structural damage, low soil microbial activity, growth of pathogenic bacteria, and lack of greenhouse soil. Rain leaching and irrigation cause many problems such as soil nutrient imbalance and salinization. [0003] There are many reasons for the above problems. For example, due to the long-term lack of deep ploughing in the facility greenhouse, the average ploughing layer of the greenhouse soil is less than 20 cm, the capillary pores in the soil are less, and the ventilation, water permeability, and temperature increase are poor. The s...

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Problems solved by technology

[0002] With the long-term planting of facility greenhouses, it is inevitable that the soil plow layer or plow layer will become shallower, the organic matter will be lacking, the number of beneficial microorganisms will decrease, and the soil will become compacted and structured. Sexual damage, low soil microbial activity, pathogenic bacteria growth, and lack of rainwater leaching and irrigation in the greenhouse soil cause many problems such as soil nutrient imbalance and salinization

[0003]There are many reasons for the above problems. For example, because the facility greenhouse has not been deeply plowed for a long time, the average plow layer of the greenhouse soil is less than 20 cm, and there are few capillary pores in the soil, so ventilation, Poor water permeability and temperature increase, easy to block the pores after irrigation, resulting in crusting on the soil surface, poor soil air permeability, forming compaction

The destruction of soil aggregate structure leads to the reduction of soil water and fertilizer retention capacity

In addition, there is a phenomenon of long-term and unreasonable application of large amounts of chemical fertilizers in facility greenhouses, resulting in high soil nitrogen and phosphorus content, resulting in soil salt accumulation and nitrate pollution, and the absorption of other trace elements is hindered

In addition, long-term cultivation carried away a large amount of organic matter in the soil, resulting in a significant reduction in the content of soil organic matter, seriously destroying the soil aggregate structure, reducing air permeability, reducing the activity of aerobic microorganisms, slow soil maturation, and low enzyme activity, resulting in crop yield reduction

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