地膜不同覆盖方式对秋季黄瓜设施栽培环境及产量的影响

Effects of plastic mulching methods on autumn cultivation environment and cucumber yield in vinyl house

以欧洲类型短黄瓜为试验材料,研究了秋冬季节塑料大棚下畦面地膜覆盖、畦面覆膜畦沟铺稻壳、畦面畦沟全膜覆盖3种不同的地膜覆盖对大棚空气温湿度、土壤温度、CO_2浓度以及黄瓜产量的影响。结果表明:畦面覆膜畦沟铺稻壳的方式降低了土壤温度,使得大棚内空气湿度略有增加,容易诱发病害。畦面畦沟全膜覆盖明显地提高了大棚内的空气温度和土壤温度,降低了空气湿度,增加了CO_2浓度,这些都有利于秋季黄瓜的生长和减少病害的发生,从而提高了黄瓜产量。

A vinyl-house culture of European short cucumber was conducted in autumn-winter season by plastic mulching only on ridge surface,plastic mulching on ridge surface and rice husk mulching on furrow,and plastic mulching on both ridge surface and furrow to investigate the air temperature and moisture,soil tempera-ture,CO2 concentration,and cucumber yield as influenced by the 3 different plastic mulching methods.The re-sults showed that the plastic mulching on ridge surface and rice husk mulching on furrow decreased the soil tem-perature,made the air moisture somewhat increase and was prone to induce disease.The plastic mulching on both ridge surface and furrow obviously improved both air and soil temperatures,decreased the air moisture and in-creased the CO2 concentration,which were beneficial to cucumber growth and decrease of disease incidence and could gain a higher cucumber yield.