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目前春茬保护地栽培的西瓜多于5月下旬至6月上中旬成熟。当头茬瓜采收后,7月份炎热多雨的天气尚未到来,西瓜植株仍保持较多的功能叶,可在同一植株上续继留瓜,使其分批座瓜,陆续采收,即留“二茬瓜”。为了提高“二茬瓜”的产量和品质,管理时应采取以下技术措施。1.及时选留“二茬瓜”留“二茬瓜”的具体做法是:当第一个瓜采收前10～15天,在西瓜植株基部的其余侧蔓中选1～2条健壮的瓜蔓,每条蔓上选第8～10节以上着生的雌花留一个瓜。为了提高“二茬瓜”的座瓜率,应进行人工辅助授粉。对选留的瓜胎要用10～12厘米长的树条折成“人”形,卡住瓜胎的前后两个节间,以防被风
At present, spring water is cultivated in protected areas more than the mature watermelon from late May to mid June. When the first crop melon harvest, the hot and rainy weather in July has not yet come, watermelon plants still maintain more functional leaves, the same plant can be continued on the melon, so that their melons in batches, one after another harvest, that stay “Second crop melon ”. In order to improve the yield and quality of “second crop of melon”, the following technical measures should be taken in management. 1. Select the right to stay in the “second crop of melon” “stay” “Second crop of melon” is the specific approach is: When the first melon harvest 10 to 15 days, the watermelon plant at the base of the other side of vine choose 1 ~ 2 Sturdy melon vine, each vine on the election section 8 to 10 with a female flower to stay a melon. In order to improve the “second crop of melon,” the rate of melon, artificial pollination should be carried out. On the election melons left to use 10 ~ 12 cm long tree fold into “people” shape, stuck melon before and after the two internodes, to prevent the wind