Abstract:

With the development of facilities protected field and the demand of market, the watermelon in greenhouse developed rapidly in recent years. Greenhouse watermelon intercropping sweet potato is a new simple agricultural technologies which could help farmers efficient increase the income. The regularly planting space of sweet potato is 25 cm. Subjected to the constraints of watermelon line space, the density of sweet potato is 26 250 plant/hm2. Low density would effect the yield benefits. Tests prove that when the planting space reduce to 17 cm, density of 37 500 plant/hm2 is more reasonable.

Key words: protected field, watermelon, sweet potato, density

摘要：

近年随着设施保护地的发展和市场的需求,大棚西瓜发展很快,西瓜间作甘薯成为农民高效增收的一项简单易行的农业新技术。甘薯常规株距25 cm,受西瓜行距的制约,密度为26 250株/hm2,密度小使产量效益受影响。试验证明将株距适当缩小至17 cm,密度控制在37 500株/hm2左右,是较为合理的密度。

关键词: 保护地;西瓜;甘薯;密度