Detailed explanation of Technical points of Potato Field Management

With the year-by-year advancement of potato staple food, many growers also have plans to plant potatoes, but although potatoes are good to plant, they also need to pay attention to field management. The following is a detailed explanation of the technical points of potato field management.

1. Field management of potato

After the potato is out of Qi, it is necessary to check the seedlings in time, and supplement the seedlings in time if there is a lack of seedlings to ensure the whole seedlings. The method of supplementary seedling is: when sowing, the redundant potato pieces are densely planted in the field for supplementary seedling. When making up seedlings, if there is a diseased potato in the hole, dig out the diseased potato and the surrounding soil before making up seedlings. When the soil is dry, the seedlings should be planted after digging holes and watering and applying a small amount of fertilizer to reduce the slow seedling time and resume growth as soon as possible. If there is no spare seedling, select the hole with many seedlings from the ridge between the seedlings in the field, break off the redundant seedlings from the base of the mother potato block, and transplant and supplement the seedlings.

II. Field Management of Potato--Intertillage and Soil Cultivation

Intertillage loose soil, so that the potato layer soil loose ventilation, conducive to root growth, stolon elongation and tuber expansion. Before emergence, such as soil surface knot, should be loosened to facilitate emergence. After the seedlings are fully cultivated, the first time of cultivation shall be carried out in time, the depth shall be 8~10 cm, and weeding shall be combined. After 10~15 days of the first time of cultivation, the second time of cultivation shall be carried out, which shall be slightly shallow. At budding stage, a third intertill is performed, shallower than the second one. And combined with soil, soil thickness should not exceed 10 cm, in order to thicken the tuber layer, avoid potato exposed, reduce quality.

III. Field management of potato--topdressing

Potato from sowing to emergence time is long, after emergence, to early with clear manure water plus a small amount of nitrogen fertilizer dressing bud seedling fertilizer, in order to promote rapid growth of seedlings. At budding stage, combine with cultivating soil, topdressing fertilizer for potato bearing once, mainly potassium fertilizer, combined with nitrogen fertilizer, and the amount of fertilizer depends on the growth and appearance of plants. After flowering, generally no longer fertilization, if the late performance of fertilizer premature aging phenomenon, available phosphorus and potassium or combined with trace elements for foliar spraying.

IV. Potato field management--pest control

Potato disease more common diseases are virus disease, late blight, bacterial wilt, ring rot, scab, cancer and so on. Late blight occurred mostly in rainy season and before and after flowering of plants. Therefore, attention should be paid to early control with Bordeaux mixture or Ruidumei. At present, chemical control of bacterial wilt is difficult, and the main control methods are reasonable rotation, selection of resistant varieties and planting small whole potatoes.

Potato pests are mainly ladybugs, earthworms, aphids, grubs, mole crickets, etc., available chemicals or artificial killing and other measures to control.

Warm Tip: Potato is relatively drought-resistant, but to obtain high yield, it cannot be short of water. During the whole growth process, it is more appropriate to maintain the soil moisture content at 60~80%. Especially in the summer high temperature stage, easy to produce abnormal tubers, to timely irrigation to reduce soil temperature. Waterlogging prevention should be timely after rain, otherwise it will cause rotten potatoes in the field. Watering should be stopped 10 days before harvest.