Cut and germination: Germination and sowing is an effective method to increase production. It can make potato seedlings, seedlings, and seedlings strong and increase yield. Germination should be done 15-20 days before sowing. Generally, 50 pieces per kilogram of seed can be cut, and at least 1 eye is used for each cut. The weight is about 25 grams. When cutting, the apical dominance is fully utilized and the apical shoots are used as far as possible. Ensure that the seedlings are neat and tidy, with particular attention to removing hybrids or diseased potatoes. After cutting and cutting, the knife cuts and heals and heals it at 15-20°C. It can germinate in Yangshuo with leeward sunlight. Usually, it can lay about 50kg per square meter, cover the plastic film to facilitate warming and moisturizing, and increase the brightness during the daytime. , cover the grasshopper at night.
Timely sowing: The temperature can be sown at 7°C (usually in early March). The suitable sowing period in our city is: the mulch film cover is 7-8 days before the “convulsionsâ€; the mulch + single shed covers the “rainwater†before and after; the double shed can be planted before and after “establishing springâ€. If you have a lack of lyricism, you must do it before you broadcast. The planting density is usually 4,800 plants/mu (7020 cm) or 5000 plants/mu (6520 cm). The market should be denser in the protected areas and thinner in the open areas at night. The sowing method is to open the ditch by row spacing, connect the seed fertilizer, and cover the soil after sowing. The seeding depth is about 8cm. The cutting distance is 12-17cm from the dome, and the covering soil is too shallow. The potatoes will be exposed and become blue, affecting the character; Deep will delay emergence and affect yield.
Rational fertilization: Potatoes are high-yielding, fertile crops that are very sensitive to fertilizer reactions. The production of 1000 kilograms of potato chips requires 5 kg of pure nitrogen, 2 kg of phosphorus, and 10 kg of potassium. The ratio of the three is 1:0.5:1.5. Potassium can strengthen the resistance of plants and increase the expansion of potato chips. Fertilization should be based on organic fertilizer (soil manure) as a base fertilizer, both to improve the soil, but also for a steady stream of potatoes to absorb and use.
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