High-yield cultivation of potato in summer
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September 20 09:09:06, 2025
First, seed treatment: The cut potato pieces are left in a natural environment for 2-3 days to allow the wounds to dry out. Once dried, the pieces are stacked and covered with a plastic sheet. When the buds grow to about 2 mm in length, they are ready for planting. Before sowing, the seed potatoes are soaked in gibberellin (90%) to enhance germination. This process involves washing off the starch after cutting, ensuring clean cuts. A solution of 2-5 ppm is prepared by mixing 1 gram of 9200 (gibberellin) with 500-2000 liters of water. The treated potato pieces are then piled up, with a layer of straw or thatch at the bottom, followed by a covering of plastic. When the buds reach 2 mm, they can be planted.
Second, soil selection: Choose land located above 1600 meters altitude, with easy access for transportation. The soil should be loose, sandy loam with high fertility. It's important to avoid areas previously used for tobacco or other Solanaceae crops to maintain the purity of the seed potatoes.
Third, planting density: Use a double-row single-planting method, with a large row spacing of 1 meter, small row spacing of 0.4 meters, and plant spacing of 0.2-0.3 meters. This setup ensures a planting density of 5000-5500 plants per acre, allowing enough space for healthy growth.
Fourth, cutting seed potatoes: Use a clean, non-oily, and salt-free knife to make vertical cuts on the top of the seed potato, breaking the main bud. Then, divide the potato into sections, each containing 1-2 buds, with each piece weighing between 25-30 grams. Allow the cut surfaces to dry before planting.
Fifth, base fertilizer: Apply 1000 kg of well-rotted farmyard manure, 50 kg of calcium, 20 kg of urea, and 15 kg of potassium sulfate as a base fertilizer before planting to provide essential nutrients for the crop.
Sixth, field management: About 30 days after planting, perform the first weeding while lightly hilling the soil around the plants. Ten days later, do a second weeding and ensure proper drainage. Depending on the growth of the potato plants, you may apply additional urea or foliar fertilizers to support development. Regular monitoring and timely care are essential for a successful harvest.