CAJ | 학술논문

为了探讨启动氮对可溶性糖积累、分配的影响,确定最佳施氮时期,延缓大豆叶片的衰老,增加叶片的光合能力,采用框栽法,按照氮肥施用时期设置了5个处理,研究启动氮对大豆不同生育时期各器官中可溶性糖含量和积累的影响。结果表明：N15＋35R4（启动氮15kg.hm-2＋R4期追氮35kg.hm-2）处理有利于大豆生育后期叶片中可溶性糖含量的增加,延缓叶片衰老,增强叶片后期的光合能力,并利于后期茎秆中可溶性糖的运转,增加籽粒中可溶性糖积累量,增加产量。N15＋35R4较N50（基肥一次性施氮50kg.hm-2）处理产量增加了16.5%,达到差异极显著水平（P〈0.01）。
위료탐토계동담대가용성당적루、분배적영향,학정최가시담시기,연완대두협편적쇠로,증가협편적광합능력,채용광재법,안조담비시용시기설치료5개처리,연구계동담대대두불동생육시기각기관중가용성당함량화적루적영향。결과표명：N15＋35R4（계동담15kg.hm-2＋R4기추담35kg.hm-2）처리유리우대두생육후기협편중가용성당함량적증가,연완협편쇠로,증강협편후기적광합능력,병리우후기경간중가용성당적운전,증가자립중가용성당적루량,증가산량。N15＋35R4교N50（기비일차성시담50kg.hm-2）처리산량증가료16.5%,체도차이겁현저수평（P〈0.01）。
In order to investigate the effects of starter-N on soluble sugar accumulation and distribution,to determine the optimum nitrogen application time,delay the senescence of soybean leaves to increase photosynthetic capacity,5 processing were set according to the nitrogen application stage to conduct the effects of starter-N on soluble sugar content and accumulation in various organs of soybeans at different growth stages.The results showed that N15＋35R4（starter-N 15 kg·hm-2＋topdressing 35 kg·hm-2 at R4 stage）treatment could increase soluble sugar content in soybean leaves,delay leaf senescence,enhanc the photosynthetic capacity of leaves at late stages,and promote the translocation of soluble sugar form stems to grains,increase soluble sugar accumulation in the grains,therefore increase soybean yield.Compared with N50（basal N 50 kg·hm-2）,N15＋35R4 treatment increased soybean yield by 16.5%（P〈0.01）.