【摘要】 分析以传统垄作为主的现行耕法在生产应用上存在的秸秆还田量不足、作业环节多、保水保土性能差、土壤结构恶化等问题,提出了改垄作为平作、改中耕为深松、改灭茬为留茬的技术思路,并建立了玉米宽窄行平作留高茬及均匀垄平作留高茬两种新耕作方式。更多还原

【Abstract】 There were lots of problems in traditional tillage method,such as less maize stubble returned into soil,more times of tillage needed,poor capacity of water storing and soil keeping,and destroy of soil structure,etc.For these reasons,ideas of converting tillage with pillage into no tillage and stubble crashed into stubble kept were suggested,and two new tillage methods were put forward in this study,one was widenarrow-row with high stubble kept,another was even row with high stubble kept.更多还原