First, the election site preparation
The growth period of Komodo artichokes is short, generally 90-120 days, and the growth and yield are greatly affected by drought and frost in winter and spring. The soil with loose soil and energy-filling irrigation should be selected, which is beneficial to the expansion of potato chips. After the spring harvest, the sun must be dug in time and the soil before loosening should be loosened, broken, and dried.
Second, seed selection and processing
1. Seed selection: Koizumi oysters are planted in the spring hawthorn harvested that year. Dwarf varieties, early potato growth, good resistance to disease, short growing period and high yield should be selected, such as Lishu No. 6 and No. 2 No. 1, Xuanshu No. 1 and Weiyu No. 3. It is not appropriate to choose a variety with a longer growth period, which will affect the cultivation of the next season's spring crops. Seed potatoes must be carefully selected to remove rot and diseased tubers.
2, drying seeds: 5 to 10 days before sowing, the selected seed potato tiled in the hospital sunny place, the use of natural light sun seed, the general seed layer thickness of 15 cm, every 3 to 4 days flip once, at night with The mat is covered. Sawn seeds help break the dormancy, increase production, and increase production by about 10%.
3, cut the potato: potato seed generally choose 50 grams of whole potatoes sown better, both to ensure seedling development of nutrients, reduce seed germ infections opportunities, without causing waste. The larger potatoes must be cut potatoes. The cutting of potatoes is generally carried out on the day of sowing or the day before. Slicing is used to ensure that each seed potato is 30-50 g and there are 1-2 healthy buds. Before cutting the potatoes, 75 must be used. % of alcohol or formalin 200 times to disinfect the knife.
4. Pregermination: In order to break the dormancy of seed potatoes and ensure that the seedlings grow quickly and neatly, use 15-20 PPM gibberellin liquid for seed treatment, soak the seed potatoes with liquid medicine, or spread the seed potatoes and spray them with a sprayer. The medicine is evenly sprayed on the seed potato. If it is a sliced ​​potato, it is best to treat the seed wound surface with turfgrass ash or charcoal after treatment to reduce the chance of infection.
Third, sowing
1, sowing date: December 10 to 20 is the best season.
2.Specifications: The width of the belt is 90 centimeters, 40 centimeters from the small row, 50 centimeters from the big row, 25 to 30 centimeters from the pond and 5000 to 6000 ponds per mu.
3, fertilization: General Mushi farmyard fertilizer 1500-2000 kg, 50 kg of food compound fertilizer mixed with enemy powder 1.5-2 kg for seed fertilizer and control of underground pests.
4, cover film: in the plastic film is no longer in the plastic film later in the cultivation of soil, planting fertilization after covering the soil can be appropriately ridging, ridge formation, sowing depth of 15 cm, and then cover the ultra-thin film of 0.00580 cm, when the cover film Paving, tightening, compaction.
Fourth, late management
Poplar emergence rate of 50% when the choice of sunny and into the membrane to release seedlings, the break should not be too large, so that the seedlings can be exposed outside the membrane, the emergence rate of about 80% when pouring a water, to the bud to flowering period, underground potato The block expands and pours 1-2 times of water to reach the speed of rapid irrigation. If budding plants continue to prosper, Mushi 15% paclobutrazol wettable powder 50 g water 60-70 kg (concentration about 100PPM) can be uniformly sprayed on the leaf surface to inhibit ground growth, promote underground growth, and increase yield. About 25%, and increase the proportion of large and medium-sized potatoes, increase commodity rates.
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