First, the land management before planting potatoes is a very adaptable crop, in addition to saline and alkaline land, other types of land will do, but there must be watering conditions. The plots of potatoes planted in spring next year are best ploughed deeper in the first year. Potatoes like soft soil and can loosen the soil. Compared with compacted plots, potatoes will become loose and loose in a few years. After a deep plowing or winter plowing plot, after a winter, the frozen layer can reach 15 cm. A winter cold and sunlight will have a good bactericidal effect, which is very beneficial to the growth of potatoes in the coming year. Potatoes not only require the first year of cultivation, but also require deep plowing. Potatoes have several layers of roots that require deep soft soil. In recent years, rotary cultivation in the field has not reached the depth and has affected potato production. Therefore, it is necessary to create a high-yielding tillage depth of 20 cm or more. If it can reach 30 cm, the increase in production will be even more under the same cultivation conditions. Second, re-basal fertilizer, fertility due to potato growth period is short, base fertilizer to be full one-time, the general application of decomposed organic fertilizer 3 ~ 4 tons / acre, application methods can be combined with 70% of the site preparation, the remaining 30% for Fertilizer, using hole or groove. Sixth, after the root dressing fertilizer if defermented, can be sprayed with 0.1% magnesium sulfate solution and 0.2% ~ 0.3% potassium dihydrogen phosphate solution, spray fertilizer solution 40 ~ 50 kg / acre. VII. Diseases and Pest Control Potatoes must be placed in the first place in prevention and control of virus disease from sowing to harvesting, and agricultural control measures must be taken to prevent and control locusts in order to reduce transmission. At the same time, 70% thiophanate-methyl wettable powder can be used to prevent diseases such as late blight and ring rot. When the conditions are right, the onset of the disease is rapid and the harm is serious. It is imperative to investigate and find out that the diseased leaves and diseased plants should be immediately removed and destroyed, and the spraying should be promptly controlled. Commonly used agents except for Formamide, Sensen Zinc, Bordeaux fluid, thiophanate-methyl. There are also the following types: 72.2% of Poughkeley 800 times solution can be used to control late blight, 64% of 500% solution of antivirus, 47% of 600600 times of Renee 600, 800 times of 600% of Kelu; the prevention of early blight is available. 50% acetaminophen 1000 times, 77% can kill 500 times, 75% chlorothalonil 600 times, and 64% kill 500 times. Every 6 to 7 days medication 1, even spray 3 to 4 times.
Dried fruit products as the name suggests dried fruit products are fruits after selection, washing and other pretreatment, dehydration to the water content of 15 ~ 25% of the products. The volume and weight of dry fruit are about 11-31% and 10-25% of that of fresh fruit, so the cost of packing, storage and transportation can be saved significantly, and it is convenient to eat and carry. Dried fruit products take fruit as raw material, take natural drying or artificial drying (hot air drying, vacuum freeze drying, vacuum frying, etc.) methods to remove most of the water in the fruit group processing (pieces, pieces, grains, powder, etc.). Dried fruit products mainly include all kinds of dried fruit, crisp fruit chips, fruit powder, etc. Such as raisins, fruit chips, aromatic powder. Among them, dried fruit has raisins, dried apricot, edible coconut, dried apple, dried plum, dried pear, dried lychee, etc.
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Third, to prevent the late frost frosted seedlings often appear late frost, the phenomenon of freezing dead seedlings. Therefore, we must strengthen the protection of the seedling stage, use cover or smoke method to avoid frost damage.
Fourth, the cultivating soil in tuber formation and expansion period, to be intensive cultivation, sub-cultivation, promote root growth and stolon formation, increase the number of tuber, to ensure that plants grow robustly.
5. Remove buds When potato buds are formed, when the inflorescences are removed, buds should be removed in time to reduce nutrient consumption and be conducive to accumulation of nutrients.