At present, it is an important period for the management of potato before and after its emergence. It is also a critical period for ensuring the early emergence of potatoes, the emergence of whole seedlings, the promotion of strong seedlings, and laying the foundation for high yields. The current potato management work should be focused on the following aspects:
Check the seedlings between the seedlings after the emergence of the potato out of the Qi, to check seedlings between the seedlings in a timely manner, seedlings in a timely manner to make up the seedlings to ensure that the whole seedlings, after the seedlings, and time seedlings Dingmiao, when the seedlings do weak to stay strong, first Between the second seedlings, 4-5 seedlings were left per hole and 3 seedlings per hole after the second seedling.
The cultivating tillage cultivating soil in the cultivating soil loosens and vents the soil in the potato layer, which is conducive to the growth of the root system, the elongation of the stolons and the enlargement of the tuber. Before the emergence of the soil, such as soil knots, soil should be carried out to facilitate the emergence of seedlings. After the seedlings are planted, the first cultivator shall be conducted in a timely manner, with a depth of 8-10 cm, combined with weeding, and the second cultivator shall be carried out for 10-15 days after the first cultivator, which shall be slightly shallow. When budding, the third cultivator is performed, which is shallower than the second cultivator. In combination with earth-cultivation, the soil thickness should not exceed 10 cm in order to thicken the tuber layer to avoid the exposure of the tuber and reduce the quality.
Timely topdressing potatoes from the time of sowing to the emergence of a longer time, after emergence, early use of manure water plus a small amount of nitrogen topdressing bud shoot fertilizer, to promote the rapid growth of seedlings. During budding stage, combined with cultivation of soil, topdressing a joint of potato fertilizer, using potash fertilizer as the main ingredient, with nitrogen fertilizer, the amount of fertilizer will depend on the appearance of the plant. After flowering, it is generally no longer fertilized, if the performance of defermenting premature aging phenomenon, the available phosphorus and potassium or combined with trace elements for foliar spray.
Chemical regulation In budding stage, uniform spraying with 15% paclobutrazol 35g/60kg water per acre can prevent the potato plants from being long, make the plants dwarf, thicken the leaves, thicken the stems, and deepen the color of the leaves, which can promote the growth of the underground. Accelerate tuber enlargement and increase yield.
Prevention and control of pests and diseases to prevent late blight and underground pests, ensure the harvest of potato production.
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