1, soaking.
Seed potatoes are washed with fresh water and then washed with 400 times carbendazim solution for 3-5 minutes. The plants are taken out by drying and transported into the greenhouse for preparation.
2. Go to bed.
Seed potatoes go to bed, laying diagonally at a 45-50 degree angle on the bed soil, and the seed potatoes turn toward the end of the stem. Before and after staggered, the length of the first two-thirds of the back pressure, the use of the underlying soil to ensure that the Qi Qixia, in order to ensure that the seedlings are neat and consistent.
3, management.
One kind of potato was kept in bed at 35-36°C for the first 5 days, and it was reduced to 28-30°C when it emerged, and kept about 25°C after emergence to prevent high-grade seedlings.
2 sweet potato bed with a watering can spray water, topsoil to see wet see dry, according to evaporation 5-7 days watering once. Stop watering for 1-3 days before picking to prevent infection of the seedlings.
3 After harvesting the second seedling, appropriate amount of fertilizer should be added. The method is to use 4 ml of seedlings to spray the seedbed first with water, then use 3% urea to water, then wash with clear water, cover the film and keep the temperature at 30°C. Promote seedlings.
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