Application Experiment on High Yield Cultivation Technology of Double Cropping Super Rice in Hengdong County of Hu′nan Province

Test and effect of the project that‘Study and application on high yield cultivation technology of double cropping super rice’from 2012 to 2014 in Hengdong county，Hunan province were summarized.Through 3 years of practice，high yield cultivation model and technology roadmap which fit double cropping super rice of south China rice region were groped.Combination varieties of super rice which had many advantages such as wide adaptability，polyclonal antibody，high yield and good quality was selected.Advanced agricultural technology measures which included reasonable collocation early and late rice varieties，general assembly，soil testing fertilization，subsection fertilization，reasonable irrigation management，comprehensive prevention and control of disease，insect and weed were applied.Rice yield reached 9 000 kghm2 through comprehensive application of these measures.