以中熟晚粳宁81为材料，对机插、抛秧和手插3种栽培方式水稻的产量、干物质积累、茎蘖动态、成穗规律等进行比较研究。结果表明，3种栽培方式稻谷产量表现为手插＞抛秧＞机插，与机插相比，手插和抛秧分别增产4.25%和2.00%；在茎蘖利用上，抛秧方式的苗峰较高但成穗率低，手插和机插成穗率较高，均大于70%，机插和抛秧以利用主茎第4～7叶位上的分蘖穗为主，而手插主茎第6～8叶位上的分蘖穗对产量的贡献更大；在物质生产上，前期抛秧物质积累量较多，至拔节期干物质量抛秧＞手插＞机插，拔节至抽穗期，手插方式的干物质积累量显著超过抛秧，抽穗至成熟期干物质积累量机插略高于抛秧和手插。

The yield, dry matter accumulation and growth characteristics of medium maturing late japonica rice variety Ning 81 were studied under different cultivation methods. The results showed that the yield of Ning 81 with hand-transplanting was higher than that of the other two cultivation methods. Hand-transplanting and machine-transplanting rice got higher spike rate of over 70%. The tiller spikes on the main stem 4 to 7 leaf position had more contribution to yield in throw seedlings and machine-transplanting rice, while the 6 to 8 leaf position had more contribution to yield in hand-transplanting rice. Throw seedlings had more dry matter accumulation in jointing stage than others, in jointing to heading stage, hand-transplanting method performed best, in heading to maturity stage, machine-transplanting method had higher dry matter accumulation.