【摘要】 为获得微润灌溉技术在设施黄瓜生产中的适宜参数。于2018-2019年考虑微润管埋深进行设施黄瓜微润灌溉试验,设置15、25和35 cm等3个试验水平,以当地设施蔬菜普遍应用的沟灌作为对照,研究了微润管埋深对设施黄瓜土壤水肥分布及生长和产量的影响。结果表明,相比沟灌,微润灌溉能够有效节水节肥的同时更有利于黄瓜的生长以及产量和水氮利用效率的提高,并且能够有效降低渗漏量,且有减少土壤深层硝态氮和速效磷的累积的趋势,以微润管埋深25和35 cm时效果最佳。更多还原

【Abstract】 In order to obtain the suitable parameters of moistube irrigation technology in the production of protected cucumber,the experiment considering the moistube buried depth was carried out from 2018 to 2019. Three test levels(15 cm,25 cm and 35 cm) were set to study the effects of moistube buried depth on soil water and fertilizer distribution,growth and yield of cucumber in greenhouse by comparing with the furrow irrigation which was widely used in local greenhouse vegetables. The results showed that compared with furrow irrigation,moistube irrigation could effectively save water and fertilizer,and was more conducive to cucumber growth,yield and water and nitrogen use efficiency improvement. Besides,moistube irrigation could effectively reduce the leakage,and had a tendency to reduce the accumulation of nitrate nitrogen and available phosphorus in deep soil. The moistube irrigation had the best effect when the moistube buried depth was 25 and35 cm.更多还原