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基于美国保护性耕作分析的东北黑土区耕地保护（Tillage Soil Protection of Black Soil Zone in Northeast of China Based on Analysis of Conservation Tillage in the United States）
保护性耕作 东北黑土区 土壤侵蚀
2010/12/29
我国东北黑土区侵蚀严重，为找到控制水土流失的有效途径，分析了美国实施保护性耕作的实践经验，阐述了其发展概况、作用和实践中遇见的问题，具体介绍了美国保护性耕作中免耕（含条耕、带耕、垂直耕）、覆盖耕、垄耕等几种常见耕作模式和相关机具。对我国东北黑土区耕地保护途径的选择、保护性耕作的理解、耕作模式改革创新、秸秆还田、深松施肥和防治病虫草害具有借鉴意义。
Soil protection value of winter crops and reduced tillage on clay loams
clay loam Cambisol crop rotations soil tillage winter crops physical properties crop yield
2010/1/13
Experiments to reduce soil physical degradation were carried out at Joniskelis Research Station of the Lithuanian Institute of Agriculture over the period 1998–2002. The soil of the experimental site ...