Method for ecologically controlling aquatic plants in river crab pond

Abstract

The invention discloses a method for ecologically controlling aquatic plants in a river crab pond. According to the method provided by the invention, biomimetic aquatic plants are planted while the aquatic plants are planted in the river crab pond, the biomimetic aquatic plants are used to replace a part of the aquatic plants to occupy the space of the river crab pond, so that overgrowth of the aquatic plants in summer is effectively controlled, chemicals are not used, manual weeding is not needed, and the method is environmentally-friendly high-efficiency; the biomimetic aquatic plants can imitate the aquatic plants to provide an aquatic environment for crabs, effectively control water temperature, and do not consume any substances; the biomimetic aquatic plants can utilize solar energy to increase oxygen for the crab pond, have long service life and low comprehensive costs, and are suitable for large-scale promotion; and a polyethylene grid module is prepared on a shore, the aquaticplants and the biomimetic aquatic plants are planted in advance, a plurality of the aquatic plants and the biomimetic aquatic plants are spread continuously, the time for planting the aquatic plants is reduced, labor is saved, and when the crabs are harvested, the polyethylene grid module is pulled out from the water surface together with the aquatic plants, so that no obstacles of obstructing catching exist in the crab pond.

Description

technical field [0001] The invention belongs to the technical field of river crab cultivation, and in particular relates to a method for ecologically controlling aquatic plants in river crab ponds. Background technique [0002] River crab is a kind of aquatic product loved by the masses. The mainstream farming models include pond culture, paddy field culture and large water surface seine culture. Crabs like the water body environment with clean water quality and high transparency, overgrown with aquatic plants and rich bait, and the growth of river crabs is the most suitable, so most of them are cultured in ponds. In the hot summer, a large number of aquatic plants need to be transplanted into the breeding pond. Moving the aquatic plants into the pond can not only lower the water temperature, but also purify the water quality and produce oxygen to increase the dissolved oxygen in the water. It can also be used as plant bait for crabs and provides shade for river crabs to mo...

AI Technical Summary

Problems solved by technology

However, the feces of crabs and the feed they feed can easily lead to eutrophication of the water in the river crab pond, making the aquatic plants prosper, consuming a lot of organic matter in the crab pond, reducing the oxygen content in the water, and the overgrown and high aquatic plants exposed to the water surface under high temperature. It is extremely perishable and destroys the water quality of crab ponds, which is not conducive to the healthy growth of crabs and rice

At present, manual weeding and chemical weeding are mainly used, but manual weeding is time-consuming and laborious, and the cost is too high; chemical weeding is simple and easy, but it will produce chemical residues, which does not conform to the concept of green ecological breeding