Technical guidance of potato planting
Select tubers with neat potato shape and delicate and smooth skin as seed tubers.
The method of disinfection and disinfection is to mix 200 parts of 40 ‰ formalin with water, spray potato pile or seed potato for 5 minutes, cover with film and steam for 2 hours, then spread it into a thin layer, ventilate and dry. The cutter should also be sterilized.
The whole potato planting selects the robust whole potato planting, which can prevent the disease infection, give full play to the top advantage, and ensure the good effect of the whole seedling.
Sprouting is sometimes imperative in order to save seeds and break dormancy. Cut into pieces weighing more than 25 grams, with 1 or 2 bud holes, and mix the seeds with plant ash after cutting. Sprouting was carried out indoors, and the potato pieces were spread about 30 cm thick, covered with wet soil and kept warm for 10 ℃ ~ 15 ℃ until the buds grew (about 0.5-1.0 cm). After 5-10 minutes of treatment with 0.5-1.0 unit gibberellin, sprouting was accelerated at the appropriate temperature.
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Problems and Countermeasures in Potato planting
The perennial planting area of potato in Yutian County is 70,000 mu, and the yield per mu is generally 2500-3500 kg. Most potato growers have some experience and good methods in cultivation and management, but on the whole, there are still many problems in potato cultivation and management. it is summarized as follows. The main results are as follows: 1. after continuous planting for several years, the potato often appears dwarfing, clumping, weak growth, shrinking, smaller, brittle or ringed spots, dark brown veins, leaves easy to fall off, and serious withering of the whole plant. Species degeneration
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Skills of planting, managing and harvesting potatoes
(1) selecting and fertilizing the sandy loam with deep soil layer and loose and fertile soil, ploughing and crushing the soil and cultivating it after leveling. Potato needs a large amount of fertilizer in the early and middle stages of growth. In order to ensure normal growth and development, base fertilizer must be re-applied. Generally, 2500-3000 kg of farm manure, 50 kg of phosphate fertilizer and 15 kg of potash (or 100-200 kg of plant ash) are applied per mu. Nest or furrow application is carried out when transplanting. (2) sowing 1. Select improved varieties: it is appropriate to choose high.
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