What technical details should be paid attention to in raising ducks in rice fields?

1. Variety selection

Raising ducks in rice fields is an extensive way of feeding, and it is an auxiliary industry in the production of green and high-quality rice, which mainly plays a role in biological control. Therefore, when selecting duck breeds, we should focus on the small and medium-sized excellent varieties with strong vitality, wide adaptability, rough feeding tolerance and strong stress resistance.

2. Time of entering the field

1-2 weeks after transplanting, 1-2-week-old ducklings were put into the rice field after the seedlings survived. Adult ducks should be put off from the field for a few days.

3. Field facilities

Seal the rice field with a plastic net before releasing the duck to prevent the duck from running to the adjacent rice field. And in the corner of the field, according to the size of one square meter for every 10 ducks, a duck house will be built. The items should be covered to protect them from the sun and rain. The duck house is used as a file on three sides, but it must be ventilated. The bottom of the house is paved with wooden or bamboo boards, and a pond twice the size of the duck house and 50-60 cm deep is dug under the house. At the same time, a number of high-yield ditches with a width of 35 cm and a depth of 30 cm were dug between the rice paddies, which were always filled with water for the ducks to play.

4. Duck stocking standard

The stocking density of big ducks is about 15 ducks per mu, and the young ducks can be increased appropriately according to the situation. When releasing ducks, the ratio of male ducks to female ducks is 1:4 to enhance the ability to move in the field.

5. Depth of water discharge

The depth of the water in the rice field is that the duck's foot can just touch the soil, so that the duck can fully stir the soil in the process of activity. As the duck grows, the depth of the water increases gradually, and the whole field has to retain the water layer.

6. Field feeding

As ducks do not have the habit of grazing during the brooding period, feeding training is usually carried out before going to the field. First of all, the ducks are trained to learn to feed on the ground millet, and then sprinkle the millet into the shallow water to let the ducks peck, gradually forming a conditioned reflex. After putting the duck into the rice field, it will take the initiative to look for weeds, insects, aquatic animals and other food in the field. At the same time, we should pay attention to supplementary feeding, generally every day each duck with 50-100 grams of rice, corn, forage and other feed, to be fixed-point feeding, not too much or too little.

7. Stocking time

In principle, grazing time should be determined according to air temperature and water temperature. Because it is grazing in rice fields, the degree of ventilation is not as good as rivers and ponds, and because the water is shallow, it is easy to be heated in the sun, so it is generally inappropriate to release ducks in the fields when the temperature exceeds 30 ℃. Especially in the hot summer, it should be carried out before 9 am and when it is cool in the afternoon. Take turns to release it properly. The same rice field should not be repeated many times, but should be laid off for a few days as appropriate.

8. Rice-duck symbiosis

Because ducks are released in rice fields for a long time in hot summer, the duck house should keep the duck house ventilated and set up some shade branches or small Arbor on the basis of preventing rodent damage. High-yield ditch should be full of water, let ducks play more water, play the role of heat prevention and cooling.

9. Control insects with ducks

If the rice seedlings give birth to insects, we should first find out the insect situation, and when the pests are serious, we should reduce the feed, let the ducks in a semi-hungry state, and feed on a large number of pests. If you want to spray pesticides on rice seedlings, you should lead the ducks to the duck shed before spraying.

10. Post-management

In the early stage of rice filling after heading, ducks should be taken back home or surrounded in field houses to prevent ducks from eating rice ears and affect rice yield. After the duck is collected, the male duck can be sold and the female duck can be bred into an egg duck. In order to facilitate duck harvesting, ducks are usually fed into the habit of gathering together when they hear a certain sound.

Weeding: the weeding effect of rice and duck is better than that of any chemical herbicides. When ducks are in rice fields, ducks eat grass in the fields when they are young, and when they grow up, they mainly eat dicotyledonous weeds. At the same time, duck trampling can indirectly play a role in weeding.

Insect control: the effect of insect control is obvious. Ducks can eat rice water weevil, Chilo suppressalis and other adults and larvae to reduce the harm to rice.

Increase fertility: because ducks live in paddy fields, their excrement becomes a good organic fertilizer, improving soil structure, increasing soil fertility, and increasing soil fertility by about 15%.

Increase yield: ducks have the habit of arching land, which can play the role of ploughing and running water, help to loosen soil, increase oxygen, promote rice root development, increase rice 1000-grain weight and maturity, and increase rice yield by about 7%.