论文部分内容阅读
一、地膜覆盖法地膜覆盖西瓜比露地种植可提早上市10天左右,产量增加5成,而且西瓜品质提高,瓜瓤又甜又沙,一般采用平作单幅地膜覆盖,播种后立即采用幅宽70—80厘米、厚0.015—0.02毫米的透明薄膜进行覆盖,四周用土压实。出苗后及时打成“T”字型孔放苗。另一种是沟栽法,即把种子播在10—20厘米的小沟内,再覆盖地膜,使瓜苗在地膜内多生长几天。地膜覆盖法是简单而经济的一种覆盖栽培法。省工省投资,一般每亩用塑料薄膜4—5公斤。地膜覆盖西瓜的播种或育苗定植时间要比露地提前5—7天。
First, the plastic film mulching Mulch coverage than open field planting can be listed for about 10 days early, the output increased by 5 percent, and the quality of watermelon, melon and sweet and sand, usually flat for a single film mulching, sowing immediately after the width 70 -80 cm thick, 0.015-0.02 mm thick transparent film covering, surrounded by soil compaction. Promptly labeled after the emergence of “T” shaped hole Fangmiao. The other is the ditch method, that is, sowing the seeds in a small trench 10-20 cm, and then cover the plastic film, the melon seedlings grow more in the film a few days. Mulching is a simple and economical method of covering cultivation. Provincial labor investment, the general use of plastic film 4-5 kg per mu. Covering watermelon mulching or planting seedling planting time than the open 5-7 days ahead of time.