New ecological and cycling cropping-breeding mode for continuous cropping of crawfish, paddy rice and Chinese milk vetches

Abstract

The invention provides a new ecological and cycling cropping-breeding mode for continuous cropping of crawfish, paddy rice and Chinese milk vetches. The mode is characterized in that after crawfish is finished catching in a rice field, one-season quality rice can be planted according to an organic planting mode; after harvesting of rice, one-season Chinese milk vetches are planted; by adjusting the sowing period of Chinese milk vetches, Chinese milk vetches can enter a flowering phase before crawfish seeds are cultured in water in parcels of the rice field the next year; at this time, Chinese milk vetches can be used as good nutrition diets for crawfish and the ornamental effect in the field is improved. The new ecological and cycling cropping-breeding mode for continuous cropping of crawfish, paddy rice and Chinese milk vetches has the following beneficial effects: resources of parcels in the field can be fully used; the multiple crop index is increased while culture cost is saved and content of organic matter in soil is improved; the cropping-breeding mode is high in benefit, low in production cost and high in utilization of parcels in the field; the ecological benign cycle is formed; and the green, eco-friendly and low-carbon cropping-breeding mode for crawfish in the field is formed.

Description

technical field [0001] The invention relates to the field of ecological breeding, in particular to a new mode of continuous cropping ecological circulation of shrimp, rice and milk vetch. Background technique [0002] The comprehensive farming mode of shrimp and rice co-cropping adopted by farmers is mainly characterized by low investment, low risk, short cycle, quick effect, good benefit and easy operation. Taking Shrimp and Rice as an example, the yield of high-quality rice (organic rice quality) is about 500kg per mu, and the income of shrimp is increased. Generally, the yield of crayfish per mu is 75-100kg, the total output value per mu is 6000-8000 yuan, and the net profit per mu is more than 3000 yuan, which is more common than that of pure species. The net income per mu of rice increased by more than 2,500 yuan. In addition, as crayfish feed, milk vetch can save feeding costs, increase field landscape effects, and increase actual benefits. [0003] In recent years, ...

AI Technical Summary

Problems solved by technology

[0005] However, the ordinary shrimp and rice breeding mode has the problem that the farmland is idle for about 3 and a half months after the rice is harvested and before the field is watered in the second year. The farmland is idle for a long time and the resources are not fully utilized.