Ecological rice and crayfish planting and breeding method

Abstract

The invention belongs to the technical field of rice and shrimp co-cropping, and particularly relates to an ecological rice and crayfish planting and breeding method. The method comprises the following steps of selecting a rice field, heightening and reinforcing ridges of the rice field to enable the ridges to be 42-48cm higher than the plane of the rice field and to be 85-95cm wide; digging annular deep ditches along the inner sides of the ridges to form annular dart target type annular ditches, digging communicating ditches among the annular ditches, arranging crayfish separation nets in the communicating ditches, arranging double-layer escape-proof nets at the side faces of the rice field ridges, and laying sludge among the escape-proof nets; and arranging double-layer protective nets at the inner sides of the ridges, filling sludge, and covering the surfaces with a layer of sludge again. The habit of crayfish drilling can be met, the crayfish growth environment can better meet the requirements of crayfishes, the ridges can be prevented from being damaged and collapsed, the stability and safety of the ridges are enhanced, the double-layer protective nets have a certain fixing effect on the sludge, sludge loss can be reduced, the crayfishes with deeper drilled holes can be trapped on the protective nets, so that the crayfishes are convenient to catch.

Description

technical field [0001] The invention belongs to the technical field of rice and shrimp co-cropping, and in particular relates to an ecological rice and shrimp breeding method. Background technique [0002] In crop production, rice is the most constrained crop by water and soil resources. At present, the development of the rice industry is facing severe situations such as steady growth in consumption, increased resource constraints, disastrous climate, frequent occurrence of diseases and insect pests, and low comparative benefits. In order to stabilize and increase production, chemical fertilizers and pesticides are widely used in traditional rice production, which not only brings food safety hazards, but also causes long-term accumulation of toxic substances such as organic matter and heavy metals, which will also cause soil compaction, deterioration of soil physical and chemical properties, and damage to the ecological environment. Crayfish, also known as Procambarus clarki...

AI Technical Summary

Problems solved by technology

However, the current paddy farming methods and models are improper, and the crayfish produced are generally small in size, poor in color and have many diseases, which affects the survival rate and yield of crayfish, and cannot guarantee farmers to obtain corresponding economic benefits.

[0004] China Patent Network has proposed an ecological breeding method for rice and shrimp co-production (the authorized announcement number is CN108605734A), which adopts a natural ecological breeding mode, utilizes the natural biological cycle system, and uses field ditch to cultivate shrimp to prey on harmful organisms in the rice field. The use of chemical fertilizers and pesticides is avoided, water quality is purified, and pollution is reduced. At the same time, conti

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