研究了肥床旱育手栽、半水育秧手栽及塑盘旱育抛栽水稻籽粒灌浆及旗叶衰老特征 .结果表明 :半水育秧手栽水稻籽粒活跃生长期长 ,但起始生长势弱 ,平均生长速率低、旗叶早期衰老慢 ,而后期快 ,肥床旱育手栽则相反 ,起始生长势和平均生长速率最高、活跃生长时期最短 ,旗叶前期衰老快后期慢 ,塑盘旱育抛栽介于两者之间 .籽粒灌浆与旗叶衰老有较好的负相关 The characteristics of grain filling and flag leaf senescence of hand-planted and semi-hydroponic seedlings with transplanting seedlings and senescing flag-leaf seeding with plastic-disc dry-cultivation were studied. The results showed that the seeds of semi-hydroponic seedlings had long-term active growth, but the initial growth potential Weak, the average growth rate is low, flag leaf early senescence slow, but the late fast, dry bed on the contrary, the initial growth potential and average growth rate is the highest, the shortest active growth period, early senescence flag leaf late, plastic Disc dry throwing throw in between the two.Grain grain filling and flag leaf aging has a good negative correlation