Main facilities for raising seedlings of watermelon

The watermelon seedling raising period is in the late winter and early spring, and the external temperature is still very low during this period. Therefore, the key to ensure the success of seedling raising is how to increase the seedbed temperature (warming) and maintain the seedbed night temperature (keeping warm). There are generally three common methods to improve the seedbed temperature: first, light heating, sunny bed breeding. The second is to raise seedlings on the hot Kang, and the third is to heat up the electric hot line. The warm facilities of seedbed include agricultural film, grass mulch and wind barrier.