Ducks, quail, fish, and vegetables are used for rotation, that is, ducks, fish, quails, and vegetables are used for mutual benefit and symbiosis, and pollution-free production is carried out. The economic benefits are significant. General 667 square meters of fresh produce 1500-2000kg, commercial fish 150-200kg, rapeseed 50-80kg, slaughter ducks 15-20, 667 square meters of output value of 1500-2000 yuan. The specific practices and production experience of the rotation mode of ducks, quail, fish, and vegetables in China are described as follows: 1. Field trimming and supporting facilities are generally chosen to be thicker in soil, softer in texture, rich in organic matter, convenient for irrigation and drainage, and soil. Water and fertilizer-saving fields. The area of ​​the plot is generally 3000-5000 square meters. Trenches are drilled around the fields, with a width of 1.5m and a depth of 1m. Field trenches with a width of 0.8m and a depth of 0.5m have been excavated in the middle of the Dianchi Lake, showing a "well" shape. The excavated soil is used to widen and reinforce the field ridges. The field ridges are 0.8-1m high and 0.5-0.8m wide. They must be firmly secured to prevent water spillage. It is also convenient for ducks to inhabit in quails and to build simple duck sheds by the pool. Diagonal sides of the plot are provided with inlets and outlets with a diameter of about 50 cm on both sides, and a fence is set to prevent escape. Tian Lu surrounded the mesh with a 4cm nylon net to prevent ducks from running away and their enemies. Second, a reasonable time to arrange the lunar calendar in mid-April to carry out Lotus seed press; lunar mid-to late May for fish species raising; Lunar June duckling stocking; lunar calendar before and after mid-August commercial fish market; lunar calendar in mid-September start selling meat Ducks; All of the fresh oysters in the lunar calendar were sold in October; early maturing rape was transplanted in early November. Third, timely pressure seed, lotus root pressure before the release of species, every 667 square meters uniform application of 800-1000kg of duck manure or decomposed pigs, cow dung, etc. for the base fertilizer, and apply raw lime 50-100kg, then irrigation, 5-10cm, with The rotavator stirs the mud into a paste for pressing. The lunar calendar began in mid-April to start seeding, with 150-200 kg per 667 square meters of pressure. Pressing must be uniform to prevent the entire lotus root from breaking into the mud. After the seeds are pressed, 10 cm of water can be added, and as the temperature rises, they can be gradually deepened to 30-50 cm. Fish breeding can be carried out in the middle and late May of the lunar calendar. Each 667 m2 of Dianchi Lake will house 20kg of squid and squid with a weight of 100-200g. These two kinds of fish are more resistant to water, omnivorous, fast growth, good market prices, can be listed on the lunar calendar before and after the Mid-Autumn Festival on August 15; ducklings should be selected, eat less, resistance to sleep, strong resistance, adaptability A wide range of fine breeds such as Gaoyou Duck. It is advisable to stock 15 to 20 eggs per 667 square meters. After the ducks have been in the field for about 20 days, the pre-producing duckweed can be stocked in a symbiotic field to supplement the duck's feed and clean water. Fourth, strengthen management Water level adjustment. When the lotus root is seeded and the fish species are not cast, the water depth should be controlled at 10cm to promote the early-generation Lianbian whip. With the gradual increase of temperature, the water level should be gradually deepened to 30-50cm, but it should not be flooded. When the summer temperatures are high, in order to prevent deterioration of the water quality or lack of oxygen, it is advisable to inspect the ponds twice a day in the morning and evening. 2. Timely supplement bait, fat. Every day, every afternoon, the bait is cast 1 time, generally 5%-10% of the weight of the fish is fed. According to the growth of lotus root and the color of leaves and the degree of water thinning, Putian can increase the amount of decomposed pigs, cow dung and other fertilizers to meet the needs of fish feeding and lotus root growth. 3. Diseases, insects, and weed control. Ducks, quail, fish, and vegetables are generally used for rotation. Generally no pesticides are needed to prevent pests and diseases. When Putian really needs to spray pesticides, it should insist on the use of high-efficiency biological pesticides, and strictly follow the requirements of agricultural techniques. Dianchi ponds with severe grass damage should be removed manually, and the removed grasses should be buried in the mud in Dianchi Lake to increase the humus content in the ponds. V. Timely picking up and transplanting rapeseed Before and after the middle of August of the lunar calendar, the pool water can be drained, and the carp and carp can be caught and listed. At the same time, a small amount of fresh carp can also be sold. Entering the middle and early September of the lunar calendar, meat ducks can be sold one after another; in October, the lunar oysters will all be sold out (except for oysters). In early November, snoring rapidly and transplanting early-maturing rapeseed and no longer fertilize.
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