关键词: 水旱轮作, 土壤肥力, 锰行为

Abstract:

Rotation of paddy-upland crops, as a cropping system with Chinese characteristic, plays very im-portant role in China agricultural production. This article discusses soil fertility and plant nutrition problemscaused by rotation of paddy-upland crops. As an example, problems of Mn deficiency in wheat under condi-tion of such rotation are analyzed in detail. Meanwhile, the authors also point out next research direction andrelated prevention strategy.

Key words: Rotation of paddy-upland crops, Soil fertility, Manganese behavior