After sowing, deep pine and pre-emergence shoal: 10~15 days after sowing, deep pine, depth of 25 cm or more; for sowing too deep, low soil temperature, weedy plot, before stalking, use scorpion to smash part of the ridge Top soil, in order to improve the ground temperature and promote early emergence.
Strengthen the management of the cultivating: After the seedlings are released, shovel them in time, and then plow a plough to raise the ground temperature. Shovel twice in the hairy period, and more soil, to achieve narrow furrows, wide ridges, lifting loose soil, to achieve multi-layer potato, conducive to tuber expansion.
Timely topdressing: When the tuber diameter is expanded to 2 to 3 cm, combined with the last cultivating, the topdressing is carried out, and the type and quantity of fertilization are determined according to the soil fertility, so as to avoid deferment and affect the yield. In the tuber formation and expansion period, combined with spraying pesticides, foliar topdressing 3 to 4 times, 7 to 10 days apart.
Timely irrigation: Conditional plots, when the soil is dehydrated, timely irrigation to keep the soil moist. Control the moisture in the late stage of the potato and before harvesting to prevent disease occurrence and rotten potatoes.
Strengthen disease prevention and control: late blight prevention and control: starting in late June, spraying protective agents to prevent the onset. Immediately after the discovery of the central diseased plant, it was removed and administered with a systemic drug, sprayed once every 7 to 10 days, and sprayed 4 to 5 times. The seed field should increase the number of spraying to ensure the quality of the seed potato. Pests: mainly aphids, before the emergence of winged mites, the southern part of our province on June 20, northern July at the beginning of the chemical control.
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