Management of sowing and emergence of watermelon in summer and autumn

The main factors affecting watermelon seedling emergence in summer and autumn are high temperature and low humidity. in order to prevent high temperature water loss or burns when seedlings are unearthed, plastic film mulching must be carried out when sowing. The type of plastic film can choose silver gray or black, the use of white plastic film must be covered with grass or soil shading to cool down. After emergence, it is necessary to pick out seedlings, inter-seedlings, replenish seedlings, and remove weeds around the seedlings. If it is dry for a long time, it should be ditched and watered at 15 cm on one side of the plant, and a small amount of quick-acting fertilizer should be applied in combination with watering. When the harm of aphids is found sporadically, it should be sprayed immediately.