研究不同灌溉措施下春玉米干物质与养分积累特征及其对产量的影响，筛选出新疆北疆地区春玉米适宜灌溉量。本文通过设置田间小区试验，以郑单958为试材，调查漫灌措施下灌溉量4800（MI1）、7200（MI2）m3/hm2和滴灌条件下灌溉量4200（DI1）、4800（DI2）、5400（DI3）、6000（DI4）m3/hm2处理玉米生育后期干物质和养分在不同器官的累积与分配，并分析其与籽粒产量建成之间的Pearson相关性。结果显示：1）两种灌溉方式下不同灌溉量之间植株总干物质量大小依次为：MI2>DI3>DI4>MI2、DI2>DI1，每个灌溉量处理下穗位干物质重显著高于茎秆和叶片，其中以滴灌量5400 m3/hm2处理穗位干物质生产量最高，较其它处理提高16.62~ 45.51%；2）两种灌溉方式下随着灌溉量的增加显著促进了地上部植株N和K养分吸收，而P养分变化不大；漫灌方式下茎秆和叶片中P养分含量显著高于滴灌处理，滴灌方式下植株穗位K养分积累效应更显著；3）滴灌方式下玉米籽粒产量显著高于漫灌处理，但产量并非随着灌溉量的增加而增加，而以5400 m3/hm2处理籽粒产量最高，平均单产17920.8 kg/hm2，穗粗、穗粒列数和千粒重显著增加是其增产的主要贡献因子；4）Pearson相关性分析显示，玉米生育后期穗位干物质量和K养分积累与产量呈极显著正相关。综合比较得出：滴灌模式下5400 m3/hm2为新疆北疆地区适宜的灌溉量，研究成果可为优化新疆春玉米水肥一体化灌溉制度提供理论依据。
This study aimed to explore the effect of accumulation and translocation of dry matter and nutrient on the spring maize yield under different irrigation stategies, and screen out the appropriate irrigation amount of maize in northern Xinjiang. Maize cultivar of Zhengdan 958 was used as the test material, and a field experiment was conducted to investigate the effects of flood irrigation amount (4800, 7200 m3/hm2, marked as MI1 and MI2, respectively) and drip irrigation amount (4200, 4800, 5400 and 6000 m3/hm2, marked as DI1, DI2, DI3 and DI4, respectively) on accumulation and distribution of dry matter and nutrient in different organs at the reproductive stage. The relevance between dry matter, nutrient and grain yield of maize was calculated by Pearson correlation coefficient. The results showed that 1) different irrigation amount had significant impact on maize dry matter, the order of the dry matter weight of aboveground plant was MI2>DI3>DI4>MI2, DI2>DI1, and the dry matter accumulation in tassel was significantly higher than that in stem and leaf in each irrigation treatment and which was obviously improved with irrigation amount increasing; the dry matter weight of DI3 was highest and which was 16.62% ~ 45.51% greater than that of other irrigation treatments. 2) with the increase of irrigation amount under different irrigation treatments, the N and K nutrient uptake of aboveground plants were significantly improved, but the P nutrient had no significant changes; P accumulation content in leaf and stem of flood irrigation treament was significantly higher than that of drip irrigation treament, and the accumulation effect of N and K in tassel was more significant under drip irrigation treament. 3) the grain yield of maize under drip irrigation was significantly higher than that under flood irrigation, yet which was not increased with the drip irrigation amount; the grain yield of DI3 treatment was the highest and the average yield reached to 17920.8 kg/hm2, and the increased yield was attributed to the increased of tassel diameter, tassel grain column number and 1000-grain weight. 4) it was found that the accumulation of dry matter and K nutrient in tassel were extremely positively correlated with grain yield of maize by Pearson correlation analysis. According to the dry matter accumulation, nutrients content in different organs and the maize yield, the appropriate irrigation amount of spring maize was suggested to be 5400 kg/hm2 under drip irrigation in areas of northern Xinjing. The findings might provide a reference for optimizing irrigation system of water-fertilizer integrated for spring maize in Xinjiang.