Plant-breeding method of one season of rice and two seasons of shrimp

Abstract

The invention relates to a plant-breeding method of one season of rice and two seasons of shrimp. The plant-breeding method includes: sowing for seedling culture in the middle of April, harvesting thefirst season of crayfish at the beginning of May, and receding water in a rice field for field drying; transplanting rice on mid May; releasing shrimp seeds on mid June, and harvesting the second season of the crayfish after 25-40d of rice-shrimp co-culture; drying the field after the rice is harvested, and irrigating water to breed the shrimp after field drying is finished. Connection and co-culture plant-breeding of one season of the rice and the two seasons of the shrimp are realized well; compared with conventional rice-shrimp modes, the method has the advantages that rice harvesting timeis advanced by about one month, autumn feeding time of crayfish seeds is advanced correspondingly, and advanced selling of the crayfish in the coming year is facilitated; crayfish supply from July toAugust is increased, staggered selling of two seasons of the crayfish can be realized, and plant-breeding economic benefit is increased effectively; the 'May Plaque' problem of the crayfish is avoided, and rice-shrimp co-culture plant-breeding technology can be better controlled and operated.

Description

technical field [0001] The invention belongs to the technical field of agricultural production, and in particular relates to a method for growing and raising one rice and two shrimps. Background technique [0002] The core of comprehensive paddy farming is based on rice planting, making full use of the water environment and three-dimensional space of paddy fields, and transforming aquatic animals through artificial field structural engineering to build a paddy field composite ecosystem that is mutually beneficial for rice and aquatic animals. This model organically combines aquaculture with rice planting, changes the single community structure of rice fields, obtains the economic, ecological and social benefits of "one water for two purposes, one land for two harvests", and creates a new path for the development of ecological agriculture It also provides an effective way for the vast number of rural areas to get rid of poverty and develop foreign exchange earning agriculture...

AI Technical Summary

Problems solved by technology

[0003] At present, when farmers implement the rice and shrimp model, in order to prolong the cultivation time of crayfish, they often delay the rice planting time and shorten the rice growth period. Live-streaming of rice), leading to the concentrated listing of crayfish, the price of crayfish is not high, which has seriously affected the economic income of rice field farmers, and it is difficult to guarantee the output of rice

With the explosive increase of the paddy field shrimp farming area, the paddy field crayfish farming model has tended to be homogeneous, which limits the diversified development of paddy field crayfish farming

In addition, the technical problems of the "May plague" of crayfish and the insufficient utilization of field resources in the rice season are also problems that the rice and shrimp model needs to solve