Pig-Marsh-Fruit (Fish, vegetable) Ecological Model Technology

I. Brief Introduction of Technology "Pig-marsh-fruit (fish, vegetables)" ecological model technology is to take farmers as the main production, through the development of aquaculture, livestock manure directly into the methane tank for anaerobic fermentation, fermentation residues to grow fruit (or fish, or vegetables), to improve yield and quality, to achieve the purpose of pollution-free production; using biogas slurry to feed pigs, can improve the utilization rate of feed, reduce pig fattening cycle, reduce costs. The mode is simple to operate, less investment, agricultural products produced can meet the requirements of pollution-free agricultural products, comprehensive utilization of agricultural wastes can reduce pollution and promote sustainable development of agriculture. Model construction content: build a "three-in-one" biogas digester, raise a pig, plant a garden fruit (or raise a pond fish, or plant a garden vegetable). Technical points and operating methods: 1, biogas digester: do a good job in the planning of biogas digester, biogas digester and pig pen, toilet connection construction, manure flow into the pool, it is best to build biogas digester under the pig pen. Biogas digester construction and pressure test acceptance in accordance with national standards. 2. Construction of pigsty and orchard (fish pond and vegetable garden): Construction according to relevant industry standards. II. Operating procedures 1,"pig-marsh-fruit (vegetable)" ecological model: fruit trees and vegetables root fertilization and conventional farm manure is the same, the amount can be larger, but also closer to the root, in order to improve the utilization rate of fertilizer; fruit tree foliar fertilization, can be picked after the fruit, three consecutive times, every 5-7 days spray biogas slurry, while adding biogas fertilizer at the root, the effect is better. 2."Pig-marsh-fish" ecological model: the fertilizer amount is put according to the routine. The amount of biogas fertilizer should be controlled according to the transparency of water color. The transparency should not be less than 20 cm in October and 10 cm in July and August. The biogas fertilizer should be extracted under the condition of normal fermentation and gas production. The biogas digester of 6-8 cubic meters can extract 600-800 kg biogas slurry and 250 kg biogas residue every 5-7 days. Excessive extraction is not allowed to avoid affecting the use of biogas. III. Precautions 1, biogas digester should be a normal fermentation of biogas digester. 2. The material taken at one time shall not be excessive, so as not to affect the use of biogas digester and bring out raw materials. IV. Benefits and effects 1."Pig-marsh-fruit" ecological model can increase the yield by about 9% and increase sugar content, foliar fertilization can prevent freezing injury;"pig-marsh-vegetable" ecological model can improve the quality of vegetables and increase yield;"pig-marsh-fish" ecological model can increase the survival rate of fry by more than 10% and increase the yield of adult fish by 27% compared with the traditional model. 2. The ecological model of "pig-marsh-fruit (fish, vegetable)" can effectively reduce the use of pesticides and fertilizers and realize harmless agricultural production.