High-yield cultivation techniques of autumn potato
Variety selection Due to the limitation of climate and other factors, autumn potatoes must be selected from short dormancy period, early potato growth, and rapid expansion of tubers. At the same time, varieties with high temperature tolerance and late blight resistance at the seedling stage can only use the early-maturing or medium-fertility period of about 90 days. Early maturing varieties, such as Zhongshu No.3, Chuanyu No.56, Chuanxi No.5, Chuanxiongzao, Feiwuruita, Eshu No.4, Wanxuan No.9, etc., can also be used for early maturing and mid-maturing varieties such as Potato No. 3, yam potato No. 1 and so on. Cultivation methods The cultivation method of double row ridging in Daejeon sowing and emergence is adopted. The ridge height is about 25cm, and the autumn potato can be appropriately increased in planting density. Generally, about 6,000 plants per acre is appropriate, that is, the row width is 0.67m and the plant spacing is 0.20m. Fertilization level: combined with the short growth period of the growth period of the autumn potato, it is necessary to apply the base fertilizer, generally about 1500kg of farmyard manure in Mushi, 30kg of base fertilizer (Western Ocean) potassium acid compound fertilizer, plus 10kg of phosphate fertilizer, and ditching And cover the soil. Small whole potato sowing Many people are accustomed to cutting large pieces of potato chips, if the seeds are sick, they often cause infection. The use of 20-50g healthy, uniform small sweet potato seeding can guarantee the uniformity of emergence and avoid the infection caused by cutting. Pregermination before sowing Autumn sowing must germinate. 7-10 days before sowing, the potato block is soaked with deep liquid of 150 grams of 100 grams of “920†1 g of water for 150 minutes, and then germinated with wet sand. When the length of the seed potato bud is 1-1.5 cm, it can be seen in the light training. Seedlings, after 2-3 days to develop a green thick short shoots can be sown to ensure that the whole seedlings. Avoid rain and avoid high temperature sowing Rain sowing will introduce soil compaction and reduce its permeability. Sowing in hot weather can cause a large amount of water loss in the tuber, consume nutrient components in the tuber, and affect the robustness of the seedlings. Flat open shallow ditch sowing Cover soil thickness should be within 5cm, in order to adequately cover the potato block is appropriate. Being too thick will prolong the emergence time of the tubers, shorten the tuber period relatively, and affect the yield and quality of the tubers. Too thin affects the growth of seedlings and roots of seed potatoes, causing inconsistent seedling growth. When the seedling grows to 10-15cm, ridging can increase the number of stem sections in the underground stem, so as to promote the occurrence of more shoots and create conditions for the expansion of the tubers. It is also possible to use ridges to sow the ridges again, but this type of planting requires more labor than flat ridges. Increase density Due to the short growth period, the autumn potato can increase its density and strengthen cultivation methods to obtain high yields. Nonsteroidal SARMS are alternatives to steroids, also known as selective estrogen receptor modulators. Unlike steroids, SARMS stimulates muscle more directly and more strongly than steroids. The stronger the targeting, the more targeted. SARMS is an optimized version of steroid substances that have steroid-like effects in the treatment of certain diseases. It may completely replace steroids in the future as a new and more effective drug.
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