Effects of Seedling-throwing Density on Yield of Double-cropping Later Season Rice in Middle-yielding and Low-yielding Fields of Southern Jiangxi Province
[Objective]To study the appropriate seedling-throwing density in middle-yielding and low-yielding fields of southern Jiangxi Province. [Method] By setting up four different seedling-throwing density,the two later season varieties Xinrongyou 2660 and Wuyou 308 was used to study the effects of seedling-throwing density on yield,tillering dynamic,LAI,flag leaf SPAD and dry matter production.[Result]The yield of two varieties increased. Compared with treatment of 210 000 clumps per hectare,the yield of 345 000 ...