大垄垄上行间覆膜对土壤水分、温度及大豆产量形成的影响

为探讨大豆大垄垄上行间覆膜的增产机制，以垦丰15、垦丰16两个大豆品种为材料，在田间进行大垄垄上行间覆膜和不覆膜处理，研究了覆膜阶段土壤水温状况及植株形态指标变化。结果表明，行间覆膜对土壤的增温作用在大豆生育前期内呈“U”型变化，在增加耕层含水量、改善根系生长环境方面起到重要作用，覆膜大豆产量明显高于对照。

Effects of applying a plastic cover between rows within a wide ridge on soil temperature and moisture and soybean yield

In order to investigate the mechanism of applying plastic cover within a wide ridge in increasing soybean yield,two soybean varieties:Kenfeng15 and Kenfeng16 were used in a two-year field experiment.The results showed that in the early growth stages,plastic covering within a wide ridge not only increased soil temperature with the U variation,but also increased A layer's soil moisture and created a favorable environment for soybean root growth.Yields of both soybean varieties were increased significantly by ...