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Aquaponics is a novel compound farming systems, which the Aquaculture and hydroponics both had completely different farming techniques, through clever eco-design, to achieve a scientific synergy Symbiosis in order to achieve quality fish is not changing the water without suffering, without fertilization and normal growth of vegetables ecological symbiotic effect. In traditional aquaculture, as fish waste accumulation, ammonia water increases, gradually increase toxicity. In aquaponics system, water is supplied to the aquaculture hydroponics system, the microbial decomposition of the ammonia water into nitrite and nitrate base, which was subsequently absorbed by plants as a nutrient. Since hydroponics and aquaculture technology is the cornerstone of aquaponics technology, aquaponics by combining different modes of hydroponics and aquaculture technology to produce various types of systems. Aquaponics allow animals, plants and ecological balance to achieve a harmonious relationship between the three microbes, the future of low-carbon production model of sustainable recycling-based zero-emissions, agriculture is the most effective way to effectively solve the ecological crisis.
"Without watering vegetables, fish do not change the water," which is aquaponics! Just give the fish feed, you can do both.
This is a closed loop of fish, vegetables and microorganisms created in a soilless environment. Fish waste provides nutrients to plants, micro-organisms responsible for decomposition of fish feces, providing nutrients, the plant after absorption, is ecological water purification, fish to survive. No pesticides and fertilizers throughout the cycle, healthy and clean pollution-free, in line with modern healthy lifestyle.
Second, aquaponics farming system model
1, blocking circulation pattern: pond water discharged via nitrification microbial treatment bed, a circular manner into the vegetable cultivation system, via biological vegetable root absorption after filtration, wastewater treatment again returned to the pond, the water in the breeding pool filtrate bed, planting groove formed between the three a closed cycle.
2, open-loop mode: to form a closed loop between the pond and the planting groove (or bed), direct supply of vegetable planting system consists of wastewater discharge ponds as disposable irrigation water without forming a refund return, each time only to pond add new water. In the watered places you can use this mode.
Third, aquaponics way classification
1, direct flotation: foam board and other floating body, directly to the vegetable seedling planting plate fixed to floating water culture; this approach is simple, but the utilization rate is not high, and some omnivorous fish will eat roots problems, the need to be surrounded by a screen of root protection, more cumbersome, and small cultivable area, efficiency is not high, the density of fish should not be too large.
2, breeding and planting water separation system, the connection between the two through the gravel bed nitrification filter design, aquaculture wastewater discharge to the filter bed or via nitration (groove) filtration, nitrification usually in bed biomass can be cultivated some of the larger fruits plant, in order to accelerate the decomposition of organic nitrated material was filtered off. Via nitration bed filtration relatively clean water is recycled into the hydroponic vegetables or aeroponics vegetable production systems as a nutritional solution or spray water cycle way supply vegetables root absorption, absorption via vegetables and then returned again to the pond to form a closed loop. This mode can be used for large-scale production, high efficiency, system stability.
3, direct connection with farming water irrigation systems in medium culture, culture area waste emissions directly drip loop manner to a substrate grooves or container cultivation, growing media after filtration via wastewater collection again return farming water, this pattern design more simple, direct connection with irrigation pipes planted tank or container to form a loop. Mostly used for substrate cultivation fruits and other more tall plants, note the place that the growing media must choose quality pea gravel or ceramic-like size, good effect of these matrix filter, the filter will not be overloaded and affect the water cycle, soilless cultivation should not use ordinary perlite, vermiculite or waste WMLE matrix, these substrates due to poor drainage system easily lead to the destruction of the ecological balance.
4, vegetables, aquatic systems, in this way as China's rice-fish farming system, except that the breeding and cultivation separate symbiosis, namely in cultivation plots covered with tarps, back filled back silt or soil, and irrigation, Construction of the aquatic vegetable bed,
The pond water is directly discharged farmland, and then return back to the set called from the other end of the pond, so tarps lay in waste water without leakage, and can fully aquatic vegetables filtration of waste, to achieve the same good biological filtration , somewhat similar to the natural marsh system. Such as fish and wild rice stem symbiosis, symbiotic calla arrowhead and other aquatic vegetables are the system design can be used.
Aquaponics technology is simple, practical and feasible, may be suitable for large-scale agricultural production, it can also be used for small-scale family agriculture hobby farms or cities, with broad prospects for application. In a particular practice operation, must be noted that the proportion of fish and vegetables between dynamic adjustment, under ordinary vegetables and conventional breeding densities, a general cubic meters of water can produce 50 pounds of fish, while the supply of 10 square meters of fruits and vegetables the fertilizer demand. Family style aquaponics system, generally only 2-3 cubic meters of water supporting vegetable cultivation area of 20-30 square meters, can basically meet the 3-5 home vegetable production and fish consumption needs, it is a very suitable for urban Countryside garden or farming mode of production, the main technology is the future trend of urban and agricultural development.