【摘要】 为探明滴灌水肥一体化技术对设施栽培大葱产量和水肥利用效率的影响,采用滴灌施肥和沟灌施肥2种不同灌溉施肥方式,对大葱设施栽培进行了滴灌水肥一体化技术效果试验。结果表明:滴灌施肥技术可节水24.25%~26.65%,改善大葱农艺性状,增加大葱产量10.36%,提高大葱水分生产效率26.59%,增加经济效益12.9%;N、P、K素肥料利用率分别提高4.75、4.53和19.20百分点,土壤养分表观平衡较好。更多还原

【Abstract】 In order to explore the effects of integration technology of water and fertilizer on yield and water and fertilizer use efficiency of facility cultivation of welsh onion,adopting drip irrigation fertilization and irrigation and fertilization of two different irrigation and fertilization methods,the test of drip irrigation fertigation technology effect on the cultivation of welsh onion.The results showed that fertilization techniques of drip irrigation could save water by 24.25% ~26.65%.And improve the welsh onion agronomic traits,increase the yield by 10.36%,improve the water production efficiency by 26.59%, increase the economic benefits by 12.9%;N,P,K fertilizer utilization rate were increased by 4.75,4.53 and 19.20percentage points respectively,showing better balance of soil nutrient.更多还原