膜下微喷条件下不同灌水量对小型西瓜长势及产量的影响

Influence of the different irrigation on the growth and yield of mini watermelon under the condition of the micro-spraying on mulch

膜下微喷技术是大兴区应用水肥一体化技术的新模式,笔者旨在研究膜下微喷水肥一体化技术模式下西瓜全生育期的适宜水量。设置18 mm、30 mm、42 mm和常规灌溉4个不同灌水量的处理,经过生长势测量和测产结果发现,每次灌水30 mm是小型西瓜在膜下微喷条件下的适宜灌水量,产量比常规灌溉提高了5.39%,比18 mm和42 mm的处理分别提高了22.25%和5.01%。因此,在大兴地区砂质土壤下可适用30 mm的灌水量对小型西瓜进行灌溉。

Submembrane micro-spraying technology is a new model for the application of integrated water and fertilizer technology in daxing district in Daxing district.This experiment aims to study the appropriate water volume for the full growth period of the watermelon under the pattern of the integration of the water and fertilize with the micro-spraying on mulch.Four different water volumes(18 mm,30 mm,42 mm and the general irrigation volume)were set.The results showed that 30 mm was the appropriate water volume for the mini watermelon under the micro-spraying on mulch,the yield was 5.39%higher than that of conventional irrigation,22.25%higher than that of 18 mm and 5.01%higher than that of 42 mm.Therefore,30 mm irrigation water can be used to irrigate the mini watermelon in the sandy soil in Daxing district.