Ridge utilization method of rice-shrimp co-culture system

Abstract

The invention relates to a ridge utilization method of a rice-shrimp co-culture system. The ridge utilization method includes: planting bait plants on ridges in winter, harvesting green bait plants inspring, and putting the same into shrimp ditches to serve as plant bait for crayfish breeding; planting pest control plants on the ridges in rice growing seasons to prevent and control rice field pest; after rice transplanting, draining water and drying the bottoms of the shrimp ditches from first-round layered water lowering to promote crayfishes to hole on the ridges in a layered manner; aftergrain filling of rice starts, draining water and drying the bottoms of the shrimp ditches from second-round layered water lowering to promote the crayfishes to hole on the ridges in a layered manner.By planting the plants on the ridges, green feed can be provided for the crayfishes, biodiversity of the rice-shrimp co-culture system can be improved, pest and disease of the rice can be controlled,and shrimp and rice quality can be improved. By adjusting water level of the shrimp ditches in a layered and fractional manner, layered and fractional holing reproduction of the crayfishes can be promoted, the ridges can be utilized reasonably, the problem that crayfish seeds intensively come out in the next year is avoided, batched and fractional selling of the crayfishes in the next year is facilitated, and crayfish breeding benefit is improved.

Description

technical field [0001] The invention belongs to the technical field of ecological agricultural planting and breeding, and in particular relates to a field ridge utilization method of a rice-shrimp co-cropping system. Background technique [0002] Rice-shrimp co-cropping is based on rice in paddy fields, where crayfish are stocked in paddy fields, making full use of light, heat, water and biological resources in paddy fields, and a compound cycle planting ecological model formed through the mutual benefit of rice and crayfish. Raising crayfish in paddy fields is an advanced green agricultural breeding model. On the one hand, crayfish can be used to eliminate insects and weeds, loosen soil, and increase fertilizer in paddy fields, which can reduce fertilization and ensure the green production of rice; Crayfish activities, foraging, and harm avoidance, crayfish are sensitive to drugs, and the use of pesticides is controlled to ensure the green farming of crayfish. However, in ...

AI Technical Summary

Problems solved by technology

However, in actual production, operators often pursue short-term benefits, "heavy shrimp and light rice", and one-sidedly increase the production of crayfish. On the one hand, a large amount of compound feed and chemical fertilizers are used, causing problems such as eutrophication of water bodies, serious shrimp diseases, and water pollution; On the one hand, ignoring the role of biodiversity in the rice field ecosystem loses the significance of rice-shrimp co-culture

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