水稻“一种两收”绿色生产技术研究

Study on Green Production Technology of Ratoon Rice

水稻"一种两收"具有提高稻田复种指数、增加稻田产出和节本增效等的技术优势,适应长江流域一些特定稻区水稻发展的需要,也是新形势下的一种绿色生产技术模式。明确了安徽沿江地区再生稻机械化生产过程中的品种选择、头季稻育秧机插、前后季水肥综合管理、留茬高度等关键技术及指标,并分析了水稻"一种两收"的适宜发展区域和需要进一步解决的问题。

Ratoon rice cultivation is a kind of green production technology of paddy rice under the new circumstance, which can increase mul- tiple-cropping index, promote the profit of rice field and save the cropping cost. This kind of cropping technology meet the needs of rice devel- opment in some specific rice planting areas along the Yangtze River. The present study have identified the key technologies and indicators in the process of mechanized production for ratoon rice along the Yangtze River areas in Anhui Province. Such as, the choice of rice varieties, rai- sing of front stubble rice seedlings as well its mechanized transplanting, fertilizer and water management for front and later season, and the stubble height. Meanwhile, the suitable development region for ratoon rice production and some questions which needed to be solved were analyzed.