Potatoes have the characteristics of high yield, early maturation, versatility, and wide distribution. In recent years, the area planted in our district has been expanding year by year. 1. Site preparation potato hi sandy loam and loam soil. Deep plowing and pouring winter water before winter, Mushi organic fertilizer 2500 ~ 3000 kg, leveling the land before sowing, pouring enough water. Through shallow ploughing and fertilizing methods, 25 kg of potassium sulfate, 25 kg of diammonium, and 15 kg of urea are applied to the surface of the mu, and the soil is turned into a soil using a rotary tiller. During ridging, the ridge width is 60 cm, the ridge height is 20-25 cm, and the ridge spacing is 100 cm. The amount of fertilizer applied in the furrows is approximately 2.5 kg per mu, potassium sulfate 10 kg, diammonium 10 kg, and borax 0.5 kg. 1.5 kg of zinc sulfate, carbofuran granules of 1.5 to 2.5 kg. 2. Selection According to the characteristics of high temperature in summer in our district, the harvest period must catch up before June 20th. Therefore, we must use early-ripening or special early-maturing type, high starch content and strong disease-resistant virus-free potato species. Potato No. 2, Zhongshu No. 3, Zhongshu No. 4 and Kexin No. 4 were harvested 50 to 60 days after emergence. The planting density was 6000 to 6500 plants per acre, and 150 kg of planting potatoes were prepared per acre. 3. Germination Before and after January 15th (25 days before sowing), the frozen seed potatoes were removed and placed under 15~20°C diffuse light for warming and germination. The cultivating of buds requires the sowing of whole 1-2 or 2 centimeter blocks of potatoes or buds. Generally, the spring sowing temperature is low and it is not easy to produce bad seeds. In order to save the seed potatoes, the seed potatoes may be cut into pieces, and the cuts must be cut only when cutting. Can not cross cut, only buds without buds, 32 to 36 pieces per kilogram of seed can be cut, each piece should not be less than 25 grams, the knife should be disinfected with alcohol, after cutting the tuber with 600 times carbendazim suspension The surface of the incision was washed with starch and allowed to germinate after drying. When germination, the potato pieces should be stacked in 2 to 3 layers, and shading and proper moisture should be given. Generally, the apple storage bag of 15 kilograms can be used, and 2-3 centimeters of wet soil is laid on the bottom layer (holding into a group and landing. Scatter), fill a layer of potato chips with wet soil to fill the gaps and bury seed potatoes and then put the second layer, and so on. Apply three layers of seed potatoes to each bag, and cover the mouth with 2 to 3 cm of wet soil at the top. Drill 3 to 5 holes around each layer, stand indoors, keep at room temperature 15~20°C, and plant about 25 days. 4, planting when the temperature is stable at 5 ~ 7 °C, in my area can be planted, generally using a wide and narrow ridge, ridge spacing 100 cm, ridge width 60 cm, a ridge planted two lines, a narrow line of 30 cm, wide line 70 Centimeter, plant spacing 20 cm, seed potato depth 8 to 10 cm, covered with mulch after planting. Intercropping with other crops may also be more effective. 5, management of field management 1 seedling period. During the germination period, the soil is always kept loose and ventilated. Generally no watering is required before emergence. When irrigation is needed, shallow water is poured and the soil is loosened immediately after pouring. After emergence, early fertilizer application, early watering, and deep cultivating after watering. When the tree is to be watered, it should be closely combined with cultivator, no drought and no irrigation, combined with shallow soil, only cultivating the ridge and furrow soil. When the plant is up to 20 cm in diameter, it is combined with watering to make large earth. The budding period should be based on earthworms, and depending on the amount of seedlings, top-dressing, and early-maturing cultivation is generally not applied top dressing. 2 tuber stage and expansion period. To keep the soil moist and loose, budding period should not be short of water, the first three water is the key to flowering period, potato season to prevent large water temperature irrigation, prevent potato rot. 3 harvest. Harvesting of spring potatoes should be based on market demand. It should be carried out before the arrival of high temperature and rainy season. Our area should be harvested in mid-June. Harvesting fresh potatoes can be appropriately advanced. Harvesting should be sunny and dry when the soil is dry.
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