The water pond with rice paddies
Ponds and rice fields combine ecologically to cultivate fish gills. Ponds can provide fertilizer and water for paddy fields and reduce the cost of fertilizing paddy fields. At the same time, water purified by paddy fields is recycled into ponds to reduce the amount of exogenous water, which can save water and improve the quality of fish gills. . The Pond Condition Pond is east-west and rectangular, with an area of ​​8 to 15 mu. The water depth is about 2 meters. The water quality is good, and the bottom of the pond is flat and does not leak. Anti-flood walls are made of asbestos tiles or calcium plastic panels, which are laid along the pool walls. The walls are 50 cm high and the corners are curved. The fish larvae drained the pool water before stocking, removing too much silt and disinfecting the whole pool with 75-125 kg of calcined water per acre. Put fresh water into the 60 cm deep before dropping. The end of February and early March, the beginning of early March, weight 50 to 60 grams per acre rearing silver trout species 800 tail, tail weight 100 to 120 grams of 200 species of carp. At the beginning of May, only 25 to 35 fleas or wild pheasant species were bred in ponds weighing 150-200 g per acre under normal temperature conditions. The snails put 250-300 kilograms of snails per acre before Ching Ming Festival. They are used to purify water bodies on the one hand, and live feeds for cockroaches on the other. Feeding management Cross-breeding silver carp feed formula feed, the daily feeding amount is controlled at about 3% of pond fish weight, 30% in the morning and 70% in the afternoon. Adhere to the principle of "Four Sets and Four Looks" for feeding. In order to feed mainly on live snails in the predatory pool, there are insufficient snails in the pool to feed some snails, river clams, and small trash fish. Pond water quality management Before the rice is planted, the fertilizer water in the pond can be discharged into the canal to inject new water. After the rice is planted, the pond water is mainly discharged into the rice fields for purification. After purifying for 3 to 4 days, the water is recycled into the pond after meeting the freshwater aquaculture water quality standards. If the pool water is insufficient, new water is added. Generally 7 to 10 days, changing the water 1 times, each time changing the amount of water accounted for 1/4 of the pool. From June to October, the whole pool is splashed with lime water once a month, the dosage is 10 ~ 15 mg / l of water, keeping the water fresh. Rice field management pond and paddy field area ratio is 1:1-1.5. Rice selection of disease resistance, fertilizer, high-yield late-maturing varieties. Disease prevention and control selection of high efficiency, low toxicity, no residual pesticides, commonly used pesticides are insecticidal double, tricyclazole, carbendazim, Jinggangmycin. In general, each use of 5% Jinggangmycin liquid 100 ~ 150 ml, 75% tricyclazole WP 250 g. Powdered pesticides are sprayed on the rice leaves in the morning with a duster. The water-based pesticides are sprayed on the rice leaf surface with a sprayer after sunny dew and reduce the amount of pesticides falling into the water.
Blood Plasma Products,Blood Products,Human Rabies Immunoglobulin,Viral Infection
Sichuan Yuanda Shuyang Pharmaceutical Co., Ltd. , http://www.syimmunoglobulin.com