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近年来推广大、中棚中小型优质西瓜栽培，瓜型适中，品质优良，深受广大市民的喜爱，种植面积逐年上升。中小型西瓜的种子籽小、壳薄、种胚小，播种育苗期又值多阴雨低温的季节，故需要一定的设备和较高的技术。１播期的确定 大、中棚特早熟栽培西瓜目的是：一能改善果实品质，
In recent years to promote large and medium shed small and medium-sized high-quality watermelon cultivation, moderate melon type, high quality, loved by the general public, planting area increased year by year. Small and medium-sized watermelon seed seeds small, thin shell, embryo is small, sowing seedling and value of more rainy season, it requires a certain amount of equipment and higher technology. 1 sowing date to determine the large, special cultivation of potted watermelon purpose is: one can improve fruit quality,