Plant growth regulator for promoting growth of water plants and beneficial algae in shrimp and crab ponds

Abstract

The invention discloses a plant growth regulator for promoting the growth of water plants and beneficial algae in shrimp and crab ponds and relates to the field of aquaculture. The water plants comprise waterweed. The beneficial algae comprise chlorella pyrenoidosa and scenedesmus obliquus. The plant growth regulator is a mixture comprising any one or more of diethyl aminoethyl hexanoate, compound nitrophenol, gibberellin and brassinolide. The use amount of the plant growth regulator used to promote the growth of the beneficial algae is in a range of 0.01 to 1 mg / L, and the use amount of the plant growth regulator for promoting the growth of the waterweed is in a range of 0.001 to 0.06 mg / L. The plant growth regulator can effectively promote the increasing of fresh weight of the waterweed, plant height and the growth of fibril, can observably promote the growth of chlorella pyrenoidosa and scenedesmus obliquus, can increase the density of chlorella pyrenoidosa and scenedesmus obliquus in valid time, and can improve the survival rate and growth rate of juvenile fish, shrimps and crabs.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a plant growth regulator for promoting the growth of aquatic plants and beneficial algae in shrimp and crab ponds. Background technique [0002] At present, in order to improve the survival rate and growth rate of fish, shrimp, and crab seedlings in the initial stage of stocking, centralized or semi-centralized aquaculture farms usually add artificial feed such as fermented soybean meal and egg yolk as bait to supplement the organic matter in the water body. However, artificial After the feed enters the water body, most of it rots before the fish, shrimp and crab eat it, which not only easily leads to eutrophication of the water body, but also increases the incidence of fish, shrimp and crab. [0003] Beneficial algae and aquatic plants are the supplements of naturally occurring organisms, and are the natural bait required for the normal growth of fish, shrimp, and crab seedlings in th...

AI Technical Summary

Problems solved by technology

At present, the slow growth rate of beneficial algae and aquatic plants in ponds is still a major factor restricting the growth of fish, shrimp and crab seedlings