水稻群体干物质生产是形成一定产量的基础和先决条件〔１〕。水稻高产群体干物质生产、积累及光合产物的分配规律是水稻高产栽培技术研究的基础。随着高产品种在生产上应用面积不断扩大，与之配套的高产栽培技术研究已迫在眉睫，通过良种良法配套技术研究，不仅能充分发挥... Dry matter production in rice is the basis and precondition for the formation of a certain yield [1]. The high-yielding rice population dry matter production, accumulation and distribution of photosynthetic products is the basis of high yielding cultivation techniques in rice. With the application of high-yielding varieties in the field of production, the research on high-yielding cultivation techniques with them is in urgent need of research and development.