Check seedlings, thinning seedlings, fixed seedlings
After the potatoes come out, check seedlings, thinning and fixing seedlings in time. If there is a lack of seedlings, fill up the seedlings in time to ensure the whole seedlings. After the full seedlings, and the time seedlings, fixed seedlings, and thinning, the weak and strong ones should be removed for the first time. After thinning, 4 to 5 seedlings are left in each hole, and 3 seedlings are left in each hole after the second thinning.
Cultivating soil
The cultivating loose soil makes the soil of the tuber layer loose and aerated, which is conducive to the growth of the root system, the elongation of the stolon and the expansion of the tuber. Before emergence, if the soil is knotted, the soil should be loosened to facilitate emergence. After the seedlings, the first intertillage should be carried out in time, with a depth of 8-10cm, combined with weeding, and the second intertillage should be carried out 10-15 days after the first intertillage. The third cultivating during budding is shallower than the second cultivating. Combined with soil cultivation, the thickness of the soil cultivation should not exceed 10cm to increase the thickness of the potato layer, avoid the exposed potato pieces and reduce the quality.
Timely top dressing
Potatoes take a long time from sowing to emergence. After emergence, it is necessary to use clean manure water and a small amount of nitrogen fertilizer to topdress sprout fertilizer as soon as possible to promote the rapid growth of seedlings. During the budding stage, apply a potato fertilizer combined with soil cultivation and topdressing, with potassium fertilizer as the main fertilizer, combined with nitrogen fertilizer, and the amount of fertilizer applied depends on the growth and appearance of the plants. After flowering, fertilization is generally no longer applied. If the phenomenon of defertilization and premature senescence occurs in the later stage, phosphorus and potassium or combined with trace elements can be used for foliar spraying.
Chemical regulation
During the budding period, use 35 grams of 15% paclobutrazol per acre and 60 kilograms of water to spray evenly, which can prevent potato plants from growing, dwarf the plants, thicken the leaves, thicken the stalks, and darken the leaf color. At the same time, it can promote underground growth and accelerate The tubers swell and increase the yield.
Prevent pests and diseases
Do a good job in the prevention and control of late blight, virus disease, and underground pests to ensure a bumper harvest of potatoes.
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