Improving Rice Yields and Nitrogen Use Efficiency by Optimizing Nitrogen Management and Applications to Rapeseed in Rapeseed-Rice Rotation System

• DOI: 10.3390/agronomy10081060
• Publication Date: 2020-07-23T14:14:06Z
• Authors: Peng Ma; Yan Lan; Tengfei Lyu; Yujie Zhang; Dan Lin; Feijie Li; Yu Li; Zhiyuan Yang; Yongjian Sun; Jun Ma
• Keywords: Panicle; Rotation system; Growing season

This investigation aims to provide theoretical and practical evidence for the efficient utilization of nitrogen (N) in paddy-upland rapeseed-rice rotation systems because a lack previous research on such leads inefficient management practices. The effects N application rates fertilizer strategies rapeseed rice were examined, respectively, relation photosynthetic productivity yields hybrid rice. results indicated that leaf area, Pn, with 40% as basal fertilizer, tillering fertilize, 20% panicle reduced rate (30 kg/ha) during rape season, higher than other trialed, conventional season. average grain yield (9545.15 over two years was treatments season rape-rice system exhibited highest yields. Our findings model high-yielding, N-saving, environmentally friendly measure rape–rice southern China.