Theoretical and Technological Problems in the Development of Planting Paddy in Saline-alkali Land of Songnen Plain
Songnen plain is alluvial plain originating from Songhua River and Nenjiang River in Northwest Jilin province and Southwest Heilongjiang province. Saline soil, alkaline soil and saline-alkali meadow soil are the primary constitutions in saline-alkali land of Songnen plain with a total area of 3× 10~6 hm~2, and they are considered to be the most potential soil resources. Research and practice showed that planting paddy on saline-alkali land is one of the best ways to improve saline-alkali soil, and a best way to improve farmers' earnings, agricultural benefit and ecological environment. But this measurement is correlated to a number of specific soil improvement theories and technical issues. Through the serial discussions of soil secondary salinization, ecological environment, micro-domain of saline-alkali soil, harm of salinization, highly dispersed soil colloids, establishment of "desalinated surface' and nurturing of fertility, this study proved that a correct understanding and managing of the theoretical and technical problems is quite necessary and important during paddy planting in saline-alkali land.
Songnen plainimprovement theory of saline-alkali soilimprovement technology of saline-alkali soilpaddy
国家科技期刊平台
NSTL
万方数据
维普
