洞庭湖区机收再生稻的生产优势及技术关键

Preliminary Analysis of the Production Advantages and the Key Techniques of Machine-Harvested Ratooning Rice in Dongting Lake Area

对2016—2020年湘阴县机收再生稻生产模式进行调查分析,并与双季稻生产模式进行比较。结果显示,机收再生稻在稳定粮食产量、节本增效、提升稻米品质、调节季节矛盾、生态环境友好等方面具有明显的优势。集成了选用良种良田、适时早播、培育壮秧、合理密植、三定施肥、科学管水、病虫防控、适时收割等适合洞庭湖地区再生稻高产栽培的配套技术。对当前发展再生稻过程中存在的品种应用与创新、机收、政策支持等问题进行了分析,并提出了建议。

Based on the investigation and analysis of the production model of mechanical-harvested regenerated rice in Xiangyin County from 2016 to 2020,and the comparison with the double-cropping rice production model,it was found that the machine-regenerated rice has the advantages of stabilizing grain yield,saving cost and increasing efficiency,improving rice quality,adjusting seasonal contradictions and protecting ecological environment,etc.This research introduced in detail.the supporting techniques for high-yield cultivation in Dongting Lake,such as selection of good varieties and fertile fields,timely early sowing,cultivation of strong seedlings,reasonable close planting,three fixed fertilization,scientific water management,disease and insect control,timely harvesting,etc.,and analyzed the problems existing in the current development of regenerated rice in the process of variety application and innovation,machine harvest,policy support,and put forward suggestions.