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Second, the preparation of protective nets and duck sheds Before the ducks stocked, paddy fields must be set around the protective net, height 0.3 meters -0.5 meters, each 5-10 acres surrounded by a community. Protective nets are cheap, strong plastic braided nets. Construct 1-2 duck canopies in the corner of rice fields in each community to provide rest, rest and shelter for ducks.
Third, rice field duck management
1, into the field time. Ducklings are 20 days old and weigh more than 100 grams. Rice is thrown for 15 days and transplanted for more than 12 days. Ducklings can be placed in the field. Adult ducks should postpone 2-3 days in Shimoda.
2, stocking density. Big ducks have 15-20 feathers per acre. Ducklings should be fed for 5-7 days after repurchasing. Firstly, a 10-20 square meter initial placement area was set up on the corner of the duck shed. The ducklings were placed in the initial feeding area for 2-3 days and then placed in the field.
3, feeding. Each day, each duck feeds with 50-100 grams of rice, corn, forage and other feeds, feeding regularly and at fixed points. In order to meet the needs of ducks for green feed, duckweed plants can be distributed in paddy fields.
4, rice and duck cohabitation. During the hot summer days, the ducklings in the field must be protected from rodents, kept afloat, and set some branches or small pergola. The field has a good production channel, and when it is in the field, it is filled with water, so that the ducks can swim in order to help prevent cooling.
5, combined with pest control ducks. If the insect pests in the field are heavy, the feed should be reduced, so that the ducks are in a state of semi-starvation and a large number of pests are consumed. During rice spraying, ducks were housed in duck houses.
6, late management. Rice milk is harvested during the milky period to avoid eating rice spikes. To facilitate the collection of ducks, the habit of gathering ducks to hear certain sounds (such as whistles) is developed during normal feeding. The recovered duck can be kept in the courtyard or in the field.
7, epidemic prevention. Ducks in paddy fields are open and susceptible to disease. Common duck diseases include duck gizzards, duck viral hepatitis, and duck cholera, which can be vaccinated during the duckling period.
Fourth, pay attention to matters
1. Use low-toxicity, high-efficiency, low-residue pesticides to prevent and control rice diseases and insect pests. Try not to use highly toxic pesticides.
2. When constructing a field duck house, consideration should be given to preventing rodent infestation.
3. During the rice field application, the ducks were kept in captivity. After the safe interval, they were put into Daejeon. Duck drinking water and paddy water should be separated during the application period to prevent duck poisoning and duck product contamination.
4. Duck ducks or ducks that have passed the contagious disease and were contaminated with mineral oil, rice fields, ducks cannot be kept.
Fifth, the effect of rice and duck symbiosis
1. Ducks like to eat plants other than grasses and water weeds, so rice can be used without or with less pesticides, herbicides. Experience has shown that except for a small amount of revolutionary grasses and barnyard grasses, no other weeds were found in the duck plots.
2. Ducks like to eat insects and aquatic animals. The effect of removing insects on rice fields is equivalent to the use of insecticides. The rate of white spikes caused by the investigation of locust infestation was 2.5% for duck farms and 9.7% for non-farm duck farms.
3, ducks continue to move in the rice field, the field water is always turbid, can promote rice growth.
4. The duck's mouth and feet play a role in the allocation of rice roots and weeds, which can accelerate the development of rice roots and promote plant tillering, which has a significant role in promoting rice growth and seed setting.
5. The excrement of ducks is organic fertilizer, which can reduce the application of chemical fertilizers in rice fields. According to calculations, the excretion of a duck is about 10 kilograms, which is equivalent to 47 grams of nitrogen, 70 grams of phosphorus, and 31 grams of potassium. The soil of the paddy field where the duck was let go is fertile and the soil quality has improved significantly.
6, paddy ducks can generally save 10% -30% of feed, but also improved the quality of duck meat.
7. Economic Benefits: First, the production cost is reduced. Pesticides, chemical fertilizers, and herbicides save 70 yuan per mu of rice field. The second is to increase the income of ducks. The quality of paddy ducks is good. The net income of each duck is about 3 yuan, and the profit per hectare of rice field is 60 yuan. The above two items add up to a profit of 130 yuan per mu. Environmental benefits are particularly evident.
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I. Species selection Rice field ducks are extensive feeding methods. Ducks are only auxiliary industries for the production of green and high quality rice, and they mainly play a biological control role. Therefore, in the selection of duck breeds, it is important to consider medium and small fine varieties with strong vitality, good sports, wide adaptability, resistance to roughage, and strong resistance. If the duck body is too large, it is easy to overwhelm the seedlings. It is recommended to feed the local small head and small-footed duck. The species will be open early, the egg production will be high, and the average weight of the duck will be 1250 to 1500 g. It can be slaughtered for 2 months.
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