【摘 要】
：
1.热气灼苗 采用地膜覆盖栽培时,定植穴周围覆土不严,晴天中午膜下热气从膜缝隙间喷出,易灼伤幼苗茎基部,轻者给土传病害侵染创造了机会,重者使幼苗萎蔫而死。因此在黄瓜植
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1.热气灼苗 采用地膜覆盖栽培时,定植穴周围覆土不严,晴天中午膜下热气从膜缝隙间喷出,易灼伤幼苗茎基部,轻者给土传病害侵染创造了机会,重者使幼苗萎蔫而死。因此在黄瓜植株没有封垄前,要经常查看封土是否脱落,特别是降雨、浇地及刮大风后,要及时封好地膜缝隙。
1 hot gas burning seedlings covered with mulching cultivation, planting holes around the soil is not strict, sunny at noon under the film from the membrane gap between the hot air, easy to burn the stem base of seedlings, light to soil-borne diseases to create infection opportunities, severe cases Seedlings wilted and died. Therefore, cucumber plants without Fengdou ago, often check whether the fall off the soil, especially after the rain, irrigated and windy, to promptly seal the gap membrane.
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