中文摘要：

为揭示中熟超高产大豆N、P2O5、K2O养分吸收分配规律。田间研究了975 m^3/hm^2（W1）、1575 m^3/hm^2（W2）、2175 m^3/hm^2（W3）、2775 m^3/hm^2（W4）4种滴水处理对‘新大豆27号’N、P2O5、K2O吸收的影响。结果表明,增加花荚期滴水量,明显增加花荚期叶、茎中N、P2O5、K2O百分含量和积累量,并大幅度提高籽粒产量;明显提高N、P2O5、K2O的收获指数、每生产100 kg籽粒所需N、P2O5、K2O量和K2O的比例。籽粒产量在6082.6-6404.7 kg/hm^2,每生产100 kg籽粒需积累N 6.4-6.6 kg,P2O51.4 kg,K2O 4.6-5.2 kg。适宜的滴水量大幅度提高了花荚期N、P2O5、K2O积累速率和K2O的比例是产量增加的重要原因。

英文摘要：

The paper aims to reveal the rule of N, P2O5, K2 O accumulation and distribution of the super-high-yielding production of soybeans. 4 different dripping amount treatments of 975 m^3/hm^2（W1）, 1575 m^3/hm^2（W2）, 2175 m^3/hm^2（W3）, 2775 m^3/hm^2（W4） were conducted in the field to study their effects on N, P2O5, K2 Oabsorption by‘Xindadou 27＇. The results showed that increasing the amount of dripping water during flowerperiod could significantly increase the percentage content and accumulation of N, P2O5, K2 O in the leaves andstems during flower period, and increase grain yield substantially, the harvest index of N, P2O5, K2 Osignificantly, and the required amount of N, P2O5, K2 O and the proportion of K2 O of every per 100 kg grainproduction. N 6.4-6.6 kg, P2O51.4 kg, K2 O 4.6-5.2 kg was required to accumulate to produce every per 100 kggrain under the grain yield of 6082.6- 6404.7 kg/hm^2. The suitable amount of dripping water in the flowerperiod can substantially increase the accumulation rate of N, P2O5, K2 O and the ratio of K2 O, that is a crucialreason for the increase in production.