在大麦秸秆还田与水田旱整的基础上,为探讨氮肥用量对水稻茎蘖动态和产量结构等的影响,进行了与旱整措施配套的氮肥用量与运筹试验。结果表明:水稻生育期施纯氮21 kg/667 m2,且基肥、蘖肥与穗肥质量运筹比例分别为40%、20%与40%时,其群体茎蘖变化平稳,穗粒结构协调合理,小区产量达到最高,可为秸秆还田条件下指导水稻生产提供依据。 Based on the effects of barley straw returning and paddy field dry-finishing, the effects of nitrogen rates on tillering dynamics and yield structure of rice were studied. The results showed that when the proportion of base fertilizer, tillering fertilizer and panicle fertilizer were 40%, 20% and 40% respectively, the stems and tillers of the population changed smoothly and the structure of spikelets was well coordinated , Cell yield reached the highest, can provide the basis for rice production under the conditions of straw returning.