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Key Technical Points for Raising Seedlings of Pumpkin in Solar Greenhouses with Vertical Trellis Cultivation for the Winter-Spring Crop
①Determining the sowing date The sowing date is mainly determined by the heat retention of the solar greenhouse. A solar greenhouse with good light transmission and good heat retention can be sown and raised as seedlings in late November. The melons are harvested in mid-March of the following year. Otherwise, the sowing date can be postponed to January of the following year. With the above-mentioned solar greenhouse, sowing and seedling raising are generally carried out from late December to early January of the following year...