黑土地保护性耕作技术的思考

Think on the Conservation Tillage Technology of Blank Soil in China

分析美国保护性耕作的起源、基本情况,对美国保护性耕作技术进行总结,对我国黑土地的演变、保护情况及保护性耕作技术问题做详细探讨,阐述中国黑土地的保护现状。针对我国黑土地未来耕作技术的发展,提出应采用和推广轮作、秸秆还田、免耕及垂直耕整等4类技术对我国黑土地实施保护性耕作。

Starting from the origin and basic situation of conservation tillage in the United States, this paper an-alyzed the conservation tillage technology in the US, and introduced the evolution of black soil in China, the protec-tion situation and the conservation tillage technology, and expounded the current situation of the protection of blacksoil in China. Based on the above two points, it is suggested that four kinds of conservation tillage should be appliedto the black land in China, such as rotation, straw returning, no tillage, vertical tillage and so on.