The environment around 30 is suitable for watermelon planting and germination. Taking measures of constant temperature and moisture preservation and paying attention to the prevention and control of soil diseases and insect pests can make the planted watermelon germinate quickly and improve the survival rate of watermelon seedlings.
What are the seedling raising methods of watermelon seeds? 1. Before soaking seeds, many watermelon seeds will be dried in the sun for 3-4 hours, and then rubbed in clean water to clean pectin, sugar and other substances on the surface of watermelon seeds. The leaching time of watermelon seeds depends on the thickness of seed coat and the size of seeds.
Generally, the germination rate of watermelon seeds can be improved by soaking the seeds for 4 to 6 hours and then taking them out to dry the planting surface.
2. Germination in greenhouse is very common. Generally, it is necessary to soak melon seeds in warm water for one day, and then put watermelon seeds on a wet towel to keep the temperature constant. After two or three days, watermelon seeds will begin to sprout. In the process of accelerating germination, we should pay attention to the control of water, temperature and oxygen, in order to effectively improve the germination rate of watermelon seeds.
3. Sowing and sowing should be carried out in sunny days. Before sowing, the nutrition bowl should be watered, and a small hole should be pierced in the middle of the nutrition bowl. Stick the bud tips of the germinated seeds down in the small holes, one bud in each bowl, and then evenly cover the fine screen soil with the thickness of 1 ~ 1.5 cm.
In order to control the occurrence of pests and diseases, targeted chemicals can be used for prevention and control.
4. Emergence management in winter and spring is the key to seedling raising. The temperature of seedbed should be kept at about 30℃ during the day and not lower than 20℃ at night. After 5-7 days, the seedlings can be transplanted. Apply decomposed farmyard manure first, then water it, and wrap watermelon seedlings with straw to prevent freezing. When watermelon seedlings begin to elongate, the natural temperature will basically start to stabilize.
Watermelon seedlings grow slowly and need to be watered frequently. After watermelon seedlings are stretched, it is not advisable to apply excessive nitrogen fertilizer to avoid white growth.
The above is the watermelon seedling information provided by Bian Xiao. I hope the above information can help you.