Strictly choose the bed time. According to the weather forecast, choose a bed on the sunny day before and after noon. Incubator & Oven Products,Oven Products,Constant-Temperature Incubator,Thermostat For Incubators Guangdong Widinlsa International Co.Ltd , https://www.widinlsas.com
Pay attention to all aspects of temperature control work. The first is that the seedbed should be chosen where the leewards are sunny, and the second is that the long-distance transportation of seed potatoes must be windproof and insulated, and can be covered with quilts, sacks, etc., and then wrapped with plastic film; thirdly, the bed can be prior to the seeding for two days Irrigation cover is used for humidification and temperature increase; Fourth, the selected sweet potato pieces are soaked with 2% carbendazim solution for 20 minutes; fifthly, the seed potatoes that cannot be finished on the same day must be kept in an environment above 10°C; It is well water direct irrigation, the amount of water should not be too large, the water running through the drainage ditch is appropriate, not flood irrigation; seven is to be watered before the water seepage and then cover the surface layer of sand; eight is the day two film covering (film Add arched film), cover straw or other straw insulation at night. Remove the mulch at the time of emergence and pay attention to soil moisture.
Pay attention to refining seedlings. When the seedlings are all out and the new leaves are unfolded, the ventilation of the seedbeds is started from 10 am to 3 pm in the sunny days. Afterwards, the ventilation area can be gradually increased. When the sweet potato seedlings grow to 12-15 cm, the temperature will be stable. Ventilation day and night. The 3-4 days before picking can be combined with irrigation to completely remove the grasshopper and the film, so that it stays up late to adjust the seedlings to adapt to the external environment.