After the seedlings and seedlings are inspected, the seedlings should be checked in time, and the seedlings should be replenished in time to ensure the whole seedlings. The method of replenishing the seedlings is: when planting, the excess potato pieces are densely planted in the field to supplement the seedlings. When replenishing the seedlings, if there is a diseased rotten potato in the missing hole, the diseased potato and the surrounding soil should be dug up and then the seedlings should be replenished. When the soil is dry, the water should be burrowed and combined with a small amount of fertilizer to plant the seedlings to reduce the time of slow seedling and restore growth as soon as possible. If there is no spare seedlings, you can select the seedlings from the ridges in the field, and remove the excess seedlings from the base of the mother potato to carry out transplanting and seedlings.
The cultivating of the soil by cultivating the soil will loosen the soil of the potato layer, which is beneficial to root growth, stolon elongation and tuber enlargement. Before the emergence of seedlings, such as soil panel knots, should be loosened to facilitate emergence. After the seedlings, the first cultivator is carried out in time, with a depth of 8 to 10 cm, combined with weeding, and 10 to 15 days after the first cultivating, the second cultivating should be carried out slightly. At the time of the bud, the third cultivating was carried out, which was shallower than the second cultivating. Combined with the soil, the thickness of the soil is not more than 10 cm to thicken the potato layer, avoiding the exposure of the potato pieces and reducing the quality.
The topdressing potato has a long time from sowing to emergence. After emergence, it is necessary to use the fresh manure water and a small amount of nitrogen fertilizer to apply the germination fertilizer to promote the rapid growth of the seedlings. In the bud stage, combined with the cultivation of soil, a potato fertilizer is applied, with potassium fertilizer as the main factor, combined with nitrogen fertilizer, and the amount of fertilizer depends on the growth of the plant. After flowering, it is generally no longer fertilized. If the phenomenon of de-fertilization and premature aging is manifested in the later stage, foliar application can be carried out with phosphorus or potassium combined with trace elements.
Potatoes that control pests and diseases are more common. Common diseases include viral diseases, late blight, bacterial wilt, ring rot, scab, and cancer. Late blight usually occurs before and after the rain and the flowering period of the plant. Therefore, it is necessary to pay attention to early prevention and treatment with Bordeaux mixture or Phytophthora. Bacterial wilt is currently difficult to control, and the control methods are mainly controlled by reasonable rotation, selection of resistant varieties and seeding with small whole potatoes.
Potato pests mainly include ladybugs, soilworms, mites, crickets, crickets, etc., which can be controlled by means of pesticides or artificial killing.
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