First, the selection and reconstruction of Lin Tian 1. The basic conditions required for fish farming lotus fields. The first is to have an excellent and adequate water supply. Second, the pond area is generally 0.2-0.5 hectares, and the minimum is no less than 0.13 hectares. Third, the water depth must be adapted to the growth of earthworms. According to the growth characteristics of earthworms, the water depth should be gradually adjusted to meet the requirements of earthworms and fish. The idle natural ponds behind the front of the house can be used to develop the fishery in the lotus field as long as the water source for phytoseiculture and fish farming can be guaranteed. 2. Requirements for engineering facilities for fish breeding farms. One is to increase the width of the ridges, so that the ridges will be 40-50 centimeters above the highest surface of the lotus fields, and 30 centimeters wide to ensure that they do not leak; the second is excavation of fish ditch, fish slip (ie, Tiangou and Tianchi). The fish ditch is excavated around the lotus field and in the pool. It is 50-60 cm wide and 30 cm deep. It is in the shape of "10", "well", and "back". The fish slip area accounts for 2%-3% of the area of ​​the lotus field, generally one fish slip per 0.067 hectare excavated, the size is 2-5 square meters, and the depth is 0.8-1 meter; the third is to install the fishing net at the inlet and outlet. (grid) to prevent escape of fish. II. Planting and Management of Lotus Fields 1, ready to work. One is facility preparation. Before planting the pupa and releasing the fish, the lotus fields should be ploughed (plowing before winter, freezing in the winter), excavating the fish ditch and fish slips, renovating the pool ponds and entering the drainage system; and secondly, applying basal fertilizer. After lotus ponds are well-prepared, about 1.5 tons of manure is fermented and cooked per 0.067 hectare. It can also be used with 3 kg of urea and 2 kg of superphosphate. 2, seed cultivation. Before and after Qingming, the temperature is above 15°C. It is required to plant fresh, no cuts, no buds, and even planting. The general spacing is 1.5 meters and the spacing is 1-1.3 meters. The planting amount of 0.067 hectares is about 200 kilograms, and the planting depth is about 15 centimeters. The sorghum and buds are all handed into the pool and the bread is compacted. About 10 centimeters of watering is maintained for 10 days after the seedlings are used, which will help increase the ground temperature and promote germination. With the increase of temperature and the growth of grasshoppers and fishes, they will gradually deepen the water level to 40-50 centimeters. In the flood season, it will be drained in time to prevent water from flooding the lotus leaf. During the clams, the depth of water is kept at about 40 cm, and then the water level is gradually lowered by about 10 cm. 3, top dressing. When axillary buds grow 4-5 leaves, 10 kg of urea is applied per 0.067 hectare. In late June, when lotus root grows vigorously, 15 kg of urea, 15 kg of potash, or 20 kg of compound fertilizer are applied. Take care to avoid fertilization under the hot sun. Third, fish species stocking 1, Qingtian disinfection. 10 days before the release of the fish in the lotus field, 40 kg of lime are used per 0.067 hectare. After the water is discharged, the whole pool is splashed and the clear pond is disinfected. For the saline and alkaline lands, ammonium bicarbonate is used to disinfect ponds. Generally, the amount is 40 kg per 0.067 ha. 2, Lianna suitable for stocking species. There are fish, oysters, clams, tilapia, loach and other foods that are miscellaneous, resistant to low oxygen, and easy to manage. For instance, Putian grass-raising fish is mainly cultivated grass-fish species. The stocking time is mid-May. For stocking specifications, bream and bream are fish species with 50 g per tail or more, tilapia is a 4-6 cm spring patch, and loach can be stocked with seedlings that have just been hatched for 10 days. 3, stocking density. Primary rearing adult fish 0.067 hectare stocking carp 100-300 tail, rearing carp 10-30 tails, carp 30 tails; primary carp adult fish 300-400 per 0.067 hectare, catching carp, carp species 50-100 The main carp carp, each 0.067 hectare stocking 6-10 cm species of about 1,000 species of fish; the main mud alive per 0.067 hectare put 2000-3000. IV. Livestock rearing and management in Lintian One is feeding. Feeding should be done "four settings" (timing, positioning, qualitative, quantitative), and the quantity and frequency of feeding should be flexibly controlled according to the weather, water temperature, water quality, feed type, aquaculture species, specifications and quantity of fish eaten. The principle is It is advisable to eat the feed within 1-2 hours. Pay attention to observation and judgment to avoid blindness. For example, the pond is mainly used for rearing catfish. In the early stage, meat sauce, fish meal, bean cake flour, cornmeal, bran, etc. are mainly fed. The amount of fish fed is 3%-5% of the fish's body weight. Animal diets can be added later, such as slaughterhouses. Materials, cockroaches, silk moths, etc.; such as eel, eel-based Putian, it is best to feed the full price pellet feed, feed can also be fed bran, cabbage cake, soybean cake, cotton cake, rice bran and other feed. The second is prevention and treatment of fish diseases. Every 15 to 20 days, Quanchipa is splashed with lime milk once, at an amount of 10-15 kg/0.067 hectare, or bleached powder is used to prevent fish disease. Short Chain Carbohydrate,Corn Starch Sugar,Tapioca Statch Sugar,Sweeteners Low Calorie Sugar Shandong Bailong Chuangyuan Bio-tec Co.,Ltd , https://www.Chinabailong.com