上海地区西瓜生长季节,往往阴雨连绵,低温高湿,极易引起西瓜僵苗或徒长,病害严重,影响座果。现根据以往试验研究和经验总结,提出西瓜早熟高产栽培技术措施,供生产参考。 (一)适时播种,培育壮苗,播种期以3月20日前后较适宜。此时较温暖,晴天多,有利齐苗(保温性好的塑料育苗棚一般3月底齐苗,30天可长成2～3叶龄、根系发达的秧苗。4月下旬定植,每亩550～600株,保持根系完整,不受损伤,这样就能带瓜入梅,提高座果率。 (二)加强管理,带瓜入梅。秧苗定植大田后,采用地膜复盖,或在根际覆草,以增加土壤温度和 Shanghai watermelon growing season, often rainy, low temperature and humidity, can easily cause watermelon stiff shoots or leggy, serious disease, affecting the fruit. Based on past experimental studies and lessons learned, we propose early maturing watermelon cultivation techniques and measures for the production of reference. (A) timely sowing, nurturing strong seedlings, sowing period on March 20 more appropriate. At this time more warm, sunny and more favorable Qi Miao (good insulation plastic nursery shed Qi generally the end of March, 30 days can grow into 2 to 3 leaf age, roots developed seedlings. April planting in late April 550 ~ 600 plants, to maintain the integrity of the root system, without damage, so that you can bring melon into the plum and improve the rate of fruit set. (B) to strengthen management, with melon into the plum. After planting seedling field, the use of plastic cover, To increase the soil temperature and