Method for efficiently reducing continuous cropping obstacles of facility soil

Abstract

The invention discloses a method for efficiently reducing the continuous cropping obstacles of greenhouse soil, relating to the technical field of high-efficiency facility agricultural cultivation and meaning a technology of applying calcium cyanamide, organic materials, water and the like in soil before crop sowing or transplanting, and performing a soil reaction in a waiting period in an airtight condition to rapidly and efficiently kill pests in the soil, decrease acidification degree, relieve secondary salinization and increase the utilization rate of nitrogen fertilizer, thereby being capable of efficiently reducing the continuous cropping obstacles of the soil. The method for efficiently reducing the continuous cropping obstacles of greenhouse soil comprises the following steps that: 1) a proper treatment time, wherein soil treatment is performed in the seasons having a daily minimum temperature of not less than 5 DEG C; 2) determination for the dosage of calcium cyanamide, wherein the dosage of calcium cyanamide is usually 20-80 kg in per 667 m<2> of soil; and 3) field operation: (1) broadcasting for organic materials; (2) broadcasting for calcium cyanamide; (3) rotary tillage; (4) furrowing; (5) film coating, water irrigation and sealing; (6) soil reaction; and (7) film opening and airing: after the soil treatment is finished, the film is opened, ventilated or aired, and then crop sowing or transplanting can be performed.

Description

technical field [0001] The invention relates to a method for effectively alleviating obstacles to continuous cropping in facility soil, which relates to the technical field of high-efficiency facility agriculture cultivation, which refers to applying calcium cyanamide, organic materials, water, etc. Through the soil reaction of a certain waiting period, it can quickly and efficiently kill harmful organisms in the soil, reduce the degree of acidification, alleviate secondary salinization, and improve the use efficiency of nitrogen fertilizers, which can effectively reduce the obstacles to soil continuous cropping. Background technique [0002] At present, domestic and foreign technical measures to prevent and control obstacles to continuous cropping in facility agriculture mainly include reasonable crop rotation, grafting, salt washing with water, microbial control, soil disinfection, and application of resistant varieties. Among them, the reasonable crop rotation method obvi...

AI Technical Summary

Problems solved by technology

[0004] The first is to solve the soil continuous cropping obstacle that has become

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