1. The seed potato uses the potato vine in the spring potato or summer potato area. The potato vine can be cut in the ground. The upper part of the vine is cut into 5 sections, and the base of the vine is inserted into the ground at a 45-degree angle. The top part is exposed, and the top is 2 sections. About the strain. Then the soil around the seedlings is compacted and watered.
2. Fertilization: Before planting, it is necessary to apply enough base fertilizer, about 2500 kg of high-quality farmyard manure per acre, 5-7 days after planting, 5-8 kg of ammonium bicarbonate per acre; 40-70 days after planting, see Miao chasing and applying potato fertilizer to potassium fertilizer, with the appropriate amount of nitrogen fertilizer, 100 kg of grass ash or 6 kg of urea per acre, 5 kg of urea; The application of manure is 500-600 kg of manure. The fertilization method is to sprinkle the crack in the top of the ridge or 200 g of potassium dihydrogen phosphate plus 500 g of urea to 40 kg of water, and spray 2 times outside the root.
3. Strengthen field management and pay attention to drought and drainage.
4. Harvest at the right time to improve the quality rate of commercial potato and ensure quality.
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