Analysis of Production Technology and Benefits of Main Rice Planting Patterns in Changsha County
In order to clarify the advantages of the ratoon rice planting model,and to provide a scientific basis for the appli-cation and promotion of the regenerative rice planting model in Changsha,the demonstration studies of three modes of ra-toon rice,double cropping rice machine transplanting and double cropping rice seedling throwing were carried out in Chan-gsha County,and the planting technology,production cost and economic benefits were compared and analyzed.The results showed that the ratoon rice mode adopts the direct seeding rice mode,which reduced 2 seedling rearing operations.The to-tal production cost of the regenerated rice model was 12 885 yuan/hm2,which was 52.0%and 49.6%lower than that of the double-cropping rice machine transplanting mode and the double-cropping rice seedling throwing mode,respective-ly.Compared with the double-cropping rice machine transplanting model and the double-cropping rice throwing mode,the total output value of the ratoon rice model decreased by 4 980 yuan/hm2 and 4 837 yuan/hm2 respectively,but its profit in-creased by 8 985 yuan/hm2 and 7 868 yuan/hm2 respectively.The production-to-input ratio of the ratoon rice model was 2.26,which was 69.9%higher than that of the double-cropping rice throwing mode and 78.0%higher than that of the double-cropping rice machine transplanting mode.The conclusion shows that the production process of the ratoon rice mod-el is simple,low cost,high efficiency,and obvious advantages.It can be used as a cost-saving and efficiency-enhancing rice production technology in Changsha County.
ricecultivation modeseffectiveness analysisratoon riceChangsha County
万方数据
维普
