(2) Feeding and management points (1) Fish farming Rice fields should be strengthened in management, often inspected, and do a good job in water management, feeding, fertilization, pesticide application, flood control, drought prevention, flight prevention, damage prevention, and theft prevention. (2) Rice paddies need to maintain proper water depth. In the initial stage of stocking, the fish can dwarf and dwarf, and the water depth is 6-10 cm. As the rice grows taller and the fish grows, it is necessary to gradually deepen the field water, and the water depth should be maintained at about 17 cm. (3) Feeding and fertilizing in time. Foods include rice bran, wheat bran, bean cake, vegetable cake, distiller's grains, and compound feed. Fertilizers are organic fertilizers and inorganic fertilizers. Take intensive care and feed 0.5-l kg of feed per acre per day. When feeding rice bran, wheat bran, and pelleted feed, it should be placed at the intake, fish ditch or fish slip. The topdressing person's animal manure must be fermented and cooked. Do not apply too much fertilizer once, to field fertilization, due to seedlings fertilization. The number of topdressing chemical fertilizers has to be less, and the average urea dose per mu is no more than 7.5 kg. Before the fertilization, the field water should be allowed to dry, allowing the fish to swim in fish slips and fish ditch. When fertilizing, field water maintains about 10-15 centimeters. (4) Fish farming rice paddies should use high-efficiency, low-toxicity and low-residue pesticides, and do not use highly toxic pesticides when controlling rice pests and diseases. We must strictly control the safe use of pesticides. To apply pesticides, try to apply them on rice leaves. Powdered pesticides should be sprayed when the dew is not dry in the morning, and the water-based pesticides should be sprayed after the dew has dried. Advocate low-volume fine spray to increase the adhesion of the droplets on the plants, dry the water before application, and allow fish to swim in fish slips and fish ditch. Paddy water depth is maintained at more than 10 cm. The use of drugs is generally stopped 30 days before the fish is caught. (5) Always clear the ditch. When the field is dry, the fields should gradually drain away, so that the fish can be concentrated in the fish ditch and the fish. Always check the water inlet and outlet and the fish-sheltering equipment. If there is a blockage of debris, clean it in time and find that the field collapses and leaks. Repair it in time.
Slowly drain water before catching fish, allow fish to enter the fish ditch with water, and then fish; winter fish field fish can be used nets, hoods and other fishing; feeding Nile tilapia should be caught before the water temperature dropped to 16 °C, If the fish is to be kept, it should be moved into the winter for winter.
Nanjing Guojiu University Agricultural Education Office Tang Guohui (1) Fish species Fish species in paddy fields should be selected for fish that are resistant to shallow water, high temperature, low oxygen tolerance, and high appetite, such as leather beard or tilapia and warm water. Fish, such as squid, squid, and grass carp (cultivating large-sized current fish species) and other species, but in winter glutinous rice paddies, due to the deep water level, after harvesting rice, some large-sized bream and carp species can be stocked to grow fish. .