摘要
选用穗重型杂交水稻新组合渝优11号为材料进行强化栽培试验,结果表明,在中等施肥水平条件下每公顷栽13.5万窝的强化栽培处理产量最佳,其单产达10 072.20 kg/hm2;强化栽培各处理的光合叶面积指数、叶绿素含量、以及光合干物质积累、灌浆速率等方面均明显优于常规栽培。说明强化栽培能够增强光合能力,提高光合产物的累积量,协调“源、库、流”的发展,为“库”提供充足的营养物质,使得籽粒饱满,千粒重增大,结实率和穗实粒增加,最终获得高产。
The large panicle type hybrid rice Yuyou 11 for experiment on the System of Rice Intensification （SRI） was studied, The result indicaded that the grain yield of the treatment that was planted 13.5 × 10^4 hole/hm^2 under SR1 was obviously higher than that of treatments. The average yield was about 10072.20 kg/hm^2. The LAI, chlorophyll content and dry matter production under SRI were higher than that of the traditional cultivation . The results showed that SRI can form more photosynthetic organ, strengthen photosynthetic ability and matter production, provide the sufficient nutrient to sink continually, make the seed more plump, increase 1000-grain weight, seedsetting percentage and filled grains per panicle,and finally obtain high yield.
出处
《西南农业学报》
CSCD
2005年第6期719-723,共5页
Southwest China Journal of Agricultural Sciences
基金
重庆市良种创新工程项目(8440)
