氮肥运筹和移栽密度对水稻产量和品质形成的影响

Effects of Nitrogen Application and Transplanting Density on Yield and Quality Formation of Rice

产量和品质是水稻科研的两个重大课题,氮肥施用和栽插密度是水稻栽培的两项重要措施,探明氮肥施用和栽插密度与水稻产量和品质形成的关系,是实现水稻高产优质生产的重要途径。本文综述了氮肥施用和栽插密度对水稻产量和品质形成影响的最新研究进展,介绍了不同品种在其适栽区的施氮和密度互作定量优化指标,以期为合理施氮密植提供依据,并对存在的问题和未来研究提出看法和展望。

Yield and quality are the two major issues in rice research, and nitrogen application and transplanting density play a vital role in rice cultivation. It is an important way to probe the relationship between nitrogen application and transplanting density and yield and quality formation of rice in achieving high yield and fine quality of rice production. The recent progress in effects of nitrogen and density on rice yield and quality formation was summarized in this paper, and the optimum indexes of nitrogen and density interaction on different rice cultivars in the optimum planting area were introduced, which providing theoretical basis for rational nitrogen and density management. The existing problems and prospects of the future study were also put forward.