Study on the High Yield and High Efficiency Cultivation Technique of Indica-japonica Intersubspecific Hybrid Rice as Single-cropping Late Rice

The high yield and high efficiency cultivation technique of Indica-japonica intersubspecific hybrid rice as single-cropping late rice was studied based on the data of 222 groups in six counties of Taizhou during 7 years.The high yield and high efficiency cultivation technique was put forward according to correlation,regression and path analysis on the structure of springe,grain and weight of Indica-japonica intersubspecies hybrid rice under different yield level.And the main techniques obtained was ensuring the effective panicle number firstly,then mainly developing the large panicles and giving consideration to the grain weight.