What are the methods and skills for grafting watermelon seedlings?

Grafting can be carried out when the scion seeds grow cotyledons. Grafting needs sunny weather, and the temperature is about 18 -25℃. Not suitable for grafting in rainy days.

The common method is high connection. About 3-5 days before grafting, the rootstock seedlings can be properly cored when they grow to the second true leaf. Grafting needs to be done in a plastic greenhouse. If the light is too strong, you can cover the plastic shed with a straw curtain to avoid direct sunlight.

Insert a flat bamboo stick with a thickness of 0. 1cm, a width of 0.2cm and a length of 12cm obliquely between two leaves of the rootstock, take out the bamboo stick, and insert the cut scion into the rootstock.

Growing habits:

Watermelon likes warm and dry climate and is not cold-resistant. The optimum temperature for growth and development is 24-30 degrees, the optimum temperature for root growth and development is 30-32 degrees, and the lowest temperature for root hair generation is 14 degrees.

Watermelon needs a large temperature difference between day and night during its growth and development. Watermelon is drought-tolerant and moisture-intolerant. Too many rainy days and too high humidity are easy to get sick. Watermelon likes light, has a long growth period and needs a lot of nutrition.

With the growth of watermelon, the fertilizer requirement increases gradually, and reaches the maximum when the fruit grows vigorously. Watermelon has strong adaptability, and sandy soil with loose soil, deep soil layer and good drainage is the best. Like weak acidity, PH5-7.