Machine transplanting technology is very demanding on seedlings, and many agricultural and agricultural machinery and professional technicians believe that seven points for three-point transplants. How to cultivate seedlings that meet the technical requirements of machine insertion? After a few years of experience in practice, the seedling management skills of Yucai are to achieve "three controls and one defense." It controls moisture, controls temperature, controls fertilizer, and prevents pests and diseases.

1, control the moisture. During the seedling stage, bed soil should be kept moist and the soil is too dry, which will affect the uniformity of seedling emergence. Water should be added in time; if the soil is too wet, root activity of seedlings will be affected and seedling growth will be adversely affected. The principle of replenishing water is to be thoroughly drenched and should not be poured every day. Usually 4 to 6 days, once the watering is suitable in the morning or late evening. At the same time, it should be noted that the replenishment should be carried out the day before the start of eviction.

2, control the temperature. After the early rice seedlings are sown to the emergence period (one leaf and one heart), the temperature in the film should be controlled, and the temperature in the film is favorable to emergence at 30 to 35 degrees. Whenever one leaf reaches the other, it is necessary to timely ventilate, strengthen the seedlings, and remove the film according to changes in temperature, so as to improve the cold resistance of the seedlings. If you encounter a cold wave, it must be covered with insulation. The following principles can be used for the hardening of seedlings. First, the seedlings in the low-temperature and dry conditions must not be cultivated. Second, the windy sunny days should prevent the wind from hurting the seedlings. Third, the windless sunny days can be made from 7 am to 4 pm, but at night it is necessary. Pay attention to thermal insulation. The fourth is when the temperature is higher than 20 degrees at night, night hardening seedlings can be carried out.

3, control of fertilizer. Seedlings mainly rely on the base fertilizer in the early growth stage, and should be topdressed in the later growth stage. Seedlings in one leaf at a time, per acre perfusion bed pouring 8 to 10 Tam cooked thin fecal cleansing or urea 4 to 5 kg per acre watered 400 to 500 kg pouring, spray water and then wash seedlings. Two-leaf one-heart period and 4 to 5 days before transplanting were applied once weaning fertilizer and marrying fertilizer. Urea urea 3 to 4 kg per mu can be used, watering 300 to 400 kg pouring.

4, prevent pests and diseases. Early rice seedlings are planted every 60-80 minutes with a 0.1% solution of 2.5 grams of enemy liquid, and the membrane is ventilated. The membrane temperature is controlled at 20-25 degrees to prevent bruising. 4 to 5 days before transplanting, spray the herbs once. When using drugs, one must master the timing of drug use, should be applied in one leaf and one heart, too early and too late will affect the preventive effect. The second is to adjust the bed surface moisture. The bed soil is too dry, and the liquid does not penetrate the root of the seedling, which affects the bactericidal effect. Third, after the drug is applied, it is necessary to cover the shed film to avoid exposure to sunlight and cause drug failure.

Many essential vitamins are needed in the diet every day. The fruit body of mushrooms is an excellent source of B-complex vitamins, including riboflavin (B2), nicotinic acid, pantothenic acid, thiamine (B1) biotin, folic acid, and vitamin B12. Mushrooms are a particularly rich source of riboflavin. And mushrooms are one of the best non-animal sources of niacin: 100 grams of fresh mushrooms provide more than a quarter of the vitamins an adult needs daily.

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