Fish and vegetable symbiotic system

Abstract

The invention provides a fish and vegetable symbiotic system. According to the fish and vegetable symbiotic system, a breeding unit and a planting unit are arranged relatively independently so that different requirements of breeding and planting can be met. Breeding wastewater as organic liquid fertilizer is rich in all elements necessary for plant growing, also contains humic acid, amino acid and other nutrients, can improve the flavor of vegetables and has richer nutrients than hydroponic products. Thus, water obtained by removing suspended substances from waste water discharged from a breeding pool through a physical filter can be subjected to nutritional requirement adjustment through a nutrient conversion device to enable the pH value to drop to a range suitable for vegetable planting, and then the nutritional requirement adjusted water is delivered to the planting unit as organic liquid fertilizer. Water of the planting unit is absorbed and purified through plants and then the purified water can return to the breeding pool as water for breeding fish. Water evaporated by a system and water lost by plant transpiration is supplemented with fresh water supplemented by a water source supplementary device. Accordingly, the fish and vegetable symbiotic system provided by the invention can really achieve the zero emission standards.

Description

technical field [0001] The invention relates to the technical field of aquaculture and planting, in particular to a fish and vegetable symbiosis system. Background technique [0002] China is a large agricultural country, but its production methods are relatively backward. Traditional aquaculture has a low density, which leads to low feed utilization. Due to extensive management, the external environment is complicated, a large amount of sewage discharges, pollutes the environment, and is easy to contact with pathogens. In addition, the water quality environment Poor, there is the problem of abuse of antibiotics and fish medicines, which makes the farmed products have problems of zoonotic parasites. However, the traditional planting industry, especially vegetable planting, requires a large amount of land, and due to the abuse of pesticides and chemical fertilizers, it is easy to cause land compaction and environmental pollution. [0003] The fish and vegetable symbiosis is ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an aquaponics system to solve the problem in the prior art that due to differences in the growth environment of aquaponics, they cannot achieve high yields in their respective optimum production intervals at the same time

Images