(a) Soil fertigation. Before the planting, 5,000 kg of fully organic fertilizer and 30 to 40 kg of compound fertilizer were applied per mu. After the land has been turned over, it is made flat, and the mulching film can be made into small stilts. (b) Colonization. Solar greenhouses are generally planted at a spacing of 40 cm and spacing of 30 cm. Before watering, the plants are watered and chopped and soiled. Open ditch or dig planting, seal ditch flat water after planting water. (c) Management after planting. After daytime planting, the temperature was maintained at 20°C to 24°C, and the night temperature was maintained above 10°C. During the period of easing, cultivating loose soil 1 to 2 times. Appropriate cooling after easing seedlings, the daytime temperature is suitable for 15 °C ~ 20 °C, and in the 7 days after the slow seedling watering seedlings, while applying fertilizer 10 kg per acre. Afterwards, cultivating again and seedlings appropriately. After 15 days, when the rosette leaves have grown up and the heart leaves start to be wrapped, 15 to 20 kg of compound fertilizer or nitric acid is applied, and the fertilizer is applied 1 time during the ball stage. The number of times of watering in winter should not be too much to prevent the ground temperature or humidity from being too high. Into the ball during the water supply should be uniform, avoid suddenly dry and damp, so as not to crack the ball or make the ball grow. Watering stopped 3 days before harvesting. (d) Harvesting. Lettuce harvesting standards are hand-pressure leaf ball elastic, not soft. Harvesting began 40 days after planting and continued until harvesting was completed approximately 80 days after planting.
Characteristics disease virus antibody test kit Wondfo Antibody Rapid Test Kit No cross reaction with common respiratory viruses Rich sample type suitable for medical institutions Easy to operate safe
Travel Testing Kit
NINGBO AUTRENDS INTERNATIONAL TRADE CO., LTD , https://www.metests.com