摘要
特早熟夏玉米地膜覆盖 ,在整个生育期内表现为增温效应 ,7月份的增温效果显著高于 8、 9月份 ;地膜覆盖在全生育期各个土层温度均高于对照 ;从日周期温度变化来看 ,地膜覆盖在各个时间均表现为增温效应。地膜覆盖具有保墒作用 。
The plastic film-covered on Especial-early summer corn showed temperature-increasing effect during the whole growing season. The temperature-increasing effect in July was significantly higher than the ones in August and September. The temperature of different soil layer during the whole growing season was higher than the contract's. The plastic film-covered in different times were shown raising temperature in the daily circle temperature change. The plastic film-covered kept soil water content, maintained a stable moisture condition during the whole growing season.
关键词
特早熟夏玉米
地膜覆盖
温度效应
水分效应
Especial-early summer corn
Plastic film-covered
Temperature effect
Moisture effect
