With japonica rice Yangfujing 8 as material,dry matter production,yield formation and the related physiological traits of rice under simplified cultivations(direct seeding,mechanical transplanting and parachute transplanting)with wheat residue return and wheat residue removal were investigated.

Digital design of rice cultivation based on Web and simulation model;

The light and simple cultivation technique with simple cultivation management process and lower work intensity based on the core of the natural no-tillage transplanting and no-tillage directive sowing technique,accords with the objective demands because the rural labor force is shifting from rural to city.

Rice response to various sulphur fertilizers and soil sulphur balance in rice-rice cropping agro-ecosystem;