膜下滴灌与膜下沟灌对设施黄瓜生长发育及生长环境的影响

Effect of Drip Irrigation and Furrow Irrigation Under Plastic Film on Growing Development and the Growing Environment of Cucumber

研究了保护地黄瓜膜下沟灌、膜下滴灌和普通沟灌3种不同的灌溉方式对黄瓜产量、病虫害发生状况及室内环境状况的影响。结果表明:膜下沟灌和膜下滴灌方式分别比普通沟灌的室内湿度低3.8%～4.9%和3.3%～6.1%,昼夜温差分别达1.5～2.3℃和1.6～2.6℃,土壤温度相对较高。膜下沟灌和膜下滴灌方式黄瓜霜霉病和白粉病的发生率和病情指数比普通沟灌低,差异达显著或极显著水平。

The effect of furrow irrigation, drip irrigation and general furrow irrigation under plastic film on yield, pests and diseases situation of cucumber and indoor environmental conditions were studied. The results showed that indoor humidity of furrow irrigation and drip irrigation under plastic film than general furrow irrigation lower were 3.8 - 4.9 ℃ and 3.3 - 6.1 ℃ respectively, day and night difference in temperature were 1.5 - 2. 3 ℃, and 1.6 - 2. 6 ℃ respectively, relatively high of soil temperature. By the methods of furrow irrigation and drip irrigation under plastic film on water management of cucumber, incidence and disease index of downy mildew and powdery mildew of lower than the normal furrow irrigation, the difference was significant or very significant level.