Crab-rice symbiotic planting and breeding pond and comprehensive temperature regulation method thereof

Abstract

The invention discloses a crab-rice symbiotic planting and breeding pond and a comprehensive temperature regulation method thereof. A breeding method of the crab-rice symbiotic planting and breeding pond comprises the following steps of: (1) rice field transformation and construction; (2) variety selection; (3) planting preparation; (4) timely planting; (5) crab larva selection; (6) preparation before stocking; (7) stocking; (8) feedstuff feeding; and (9) aquatic plant planting. The comprehensive temperature regulation method comprises the step of: according to season and air temperature changes, properly adding new water or changing water, wherein generally, the water is changed for once at an interval of 7 to 10 days after May, the water is changed for once at an interval of 1 to 3 daysin high-temperature seasons, one fourth to one third of field water is changed each time, and in the water changing process, a water temperature difference before and after the water is changed cannotexceed 3 to 5 DEG C. A living environment which is rich in oxygen, sufficient in sunlight and proper in temperature can be provided for growth of river crabs, growth of the river crabs is guaranteednot to be influenced, rice can also be normally developed and matured; and both the river crabs and the rice which are obtained by the method are nuisance-free agricultural products.

Description

technical field [0001] The invention relates to the field of aquatic ecological cultivation, in particular to a crab-rice symbiotic breeding pond and a comprehensive temperature adjustment method thereof. Background technique [0002] River crabs are temperature-changing animals, and the body lacks body temperature regulation function. Changes in water temperature have a direct impact on the growth of river crabs, which determine the output and specifications of adult crabs, and are one of the key factors affecting the economic benefits of river crab farmers. June-September is the peak season for river crab growth in southern Jiangsu. During the crab breeding process, pond water is an essential environment for river crabs to live, and water temperature is a key factor affecting the growth of river crabs. We all know that the optimum growth temperature for river crabs is 20-28°C. When the water temperature in the breeding pond is continuously above 30°C, the river crab is al...

AI Technical Summary

Problems solved by technology

Due to the high planting density of ordinary rice, the water body in the paddy field has insufficient light, which is not conducive to the growth of river crabs, and also limits the activity space of river crabs. The intertwined rice stems will also cause damage to the residual limbs of river crabs during crawling, affecting the normal growth of river crabs , it is easy to cause the size of river crabs to be too small. Therefore, the economic benefits of the paddy field crab farming model cannot meet people's expectations

Practice has proved that the existing crab farming model in rice fields does not have the prospect of popularization and application, so the crab farming model in rice fields has been gradually eliminated by people