First, seed treatment: The cut potato pieces will be tiled in the natural environment for 2-3 days until the wound is dehydrated. The potato chips are piled up and covered with plastic cloth. After the buds grow about 2 mm, they can be sown. The new potato seeds are soaked with gibberellin (90%) to promote germination, that is, the starch is washed after cutting, and the starch is washed. 2-5ppm is 1g 9200 plus 500-200 kg of water. The potato chips are piled up, the bottom layer is covered with straw or thatch, and then covered with a plastic cloth. After the buds grow to about 2 mm, they can be sowed. Second, the choice of soil: choose 1600 meters above sea level convenient transportation, loose soil sandy loam above the fertility, before the non-fired tobacco, Solanaceae crop land, easy to ensure the purity of seed potatoes. Third, the planting density: the use of dual-row single planting method, a large spacing of 1 meter, a small row spacing of 0.4 meters, spacing 0.2-0.3 meters, ensure 5000-5500 per acre. Fourth, cut the seed potato method: the use of non-greasy, salt-free knife, to the top of the seed potato longitudinal cut, break the top bud, and then according to the distribution of buds eye each block 1-2 buds, potato weight 25-30 grams, dry wounds You can sow. Fifth, the base fertilizer: Mu Shi maturity farmyard fertilizer 1000 kg, 50 kg of calcium, urea 20 kg, potassium sulfate 15 kg. Sixth, field management: 30 days after the basic seedlings, the first weeding can be carried out, combined with a small soil, 10 days after the second soil, weeding to ensure smooth drainage. According to the growth of potato seedlings, a certain amount of urea or extra-root topdressing may be applied.
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