Method for cyclically utilizing water plants of river crab pond

Abstract

The invention provides a method for cyclically utilizing water plants of a river crab pond. The method comprises the following steps: managing the river crab pond: cleaning sludge in the river crab pond, disinfecting the river crab pond by utilizing quick lime, bleaching powder and tea seed meal, and then insolating the pond; managing the water plants, applying fertilizer and throwing in bellamyaquadrata: arranging a fencing grass planting region in the river crab pond, planting the water plants, and cutting off the water plants in summer; adding the bellamya quadrata before Qingming Festival; throwing in river crabs: throwing in young river crabs at the last ten-day period of March; carrying out grass carp intercropping: placing a grass carp intercropping net box in the pond at the firstten-day period of June; throwing in grass carp fries: throwing in the grass carp fries into the grass carp intercropping net box at the first ten-day period of July; feeding feed: only feeding feed to the river crabs, but not feeding feed to the grass carps, and feeding the grass carps with the water plants cut from the river crab pond; regulating and controlling the water quality of the river crab pond. According to the technical scheme of the invention, efficient combination of a plurality of types of high-quality aquatic products is realized, the utilization rate of a water body and the planted water plants is improved, the output-input ratio is improved and the comprehensive economic benefit of the river crab pond is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, in particular to a method for recycling aquatic plants in river crab ponds. Background technique [0002] River crab, also known as crab, scientific name Chinese mitten crab; is an extremely important famous and high-quality aquatic product in my country. Grass carp belongs to Cyprinidae Cyprinidae. The common names of grass carp are: grass carp, grass carp, grass carp, etc. It is a very common fish in our country. In practice, silver carp and mandarin carp interplanted in river crab ponds have been implemented, but it is rare to see grass carp intermingled in river crab ponds. Provide the necessary places for the crabs to molt, and also purify the water quality. However, if the density of aquatic plants is too high, the crabs will be adversely affected. In addition, Elodea and other species are not resistant to high temperatures, and the decline of aquatic plants will directly lead to the ...

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Problems solved by technology

In practice, silver carp and mandarin carp interplanted in river crab ponds have been implemented, but it is rare to see grass carp intermingled in river crab ponds. Provide the necessary places for the crabs to molt, and also purify the water quality. However, if the density of aquatic plants is too high, the crabs will be adversely affected. In addition, Elodea and other species are not resistant to high temperatures, and the decline of aquatic plants will directly lead to the deterioration of water quality. In order to control the density of aquatic plants in the management, the method of cutting and discarding the aquatic plants in river crab ponds is directly adopted, and the discarded aquatic plants have not been fully utilized

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