|
|||||
|
|
| 施氮水平对大豆氮素积累与产量影响的研究 | |
| 引用本文： | 邸伟,金喜军,马春梅,龚振平,董守坤,张磊.施氮水平对大豆氮素积累与产量影响的研究[J].核农学报,2010,24(3):612-617. |
| 作者姓名： | 邸伟 金喜军 马春梅 龚振平 董守坤 张磊 |
| 作者单位： | 1. 东北农业大学农学院,黑龙江哈尔滨,150030 2. 国家大豆工程技术研究中心,黑龙江哈尔滨,150030 3. 黑龙江省农业科学院土壤肥料与环境资源研究所,哈尔滨黑龙江,150086 |
| 基金项目： | 国家科技支撑项目，黑龙江省科技攻关项目 |
| 摘 要： | 以绥农14为材料,利用砂培和15N标记的方法研究了施氮水平对大豆氮素积累及产量的影响。结果表明:随着施氮水平的提高,大豆全株氮素积累量及叶柄、荚皮、籽粒中氮素积累量呈现先增加后下降的趋势;高氮水平增加了叶片和茎中氮素积累量,N150较N0处理叶片的氮素积累量增加了3倍,而茎增加了5倍,但减少了根中氮素积累,降低了大豆全株和籽粒中根瘤固氮量及其所占比例,降低了肥料氮和根瘤氮的收获指数,其中根中氮素积累N150较N50处理降低了60.3%,全株根瘤氮和籽粒中根瘤氮N150较N0分别降低了74.9%、85.7%,肥料氮的收获指数N150较N50降低19.8%,根瘤氮的收获指数N150较N0降低25.5%。随着施氮水平的增加,大豆产量也呈现先增加后下降的趋势,施氮水平的增加促进了大豆植株株高、结荚高度和始荚节位的显著增加,但对节数没有明显影响,N150和N0比较株高增加了55.2%,结荚高度增加了199.7%,始荚节位增加了142.9%。 |
| 关 键 词： | 大豆 氮素积累 产量 |
EFFECTS OF NITROGEN APPLOCATION ON YIELD AND NITROGEN ACCUMULATION IN SOYBEAN |
|
| DI wei,JIN Xi-jun,MA Chun-mei,GONG Zhen-ping,DONG Shou-kun,ZHANG Lei.EFFECTS OF NITROGEN APPLOCATION ON YIELD AND NITROGEN ACCUMULATION IN SOYBEAN[J].Acta Agriculturae Nucleatae Sinica,2010,24(3):612-617. | |
| Authors: | DI wei JIN Xi-jun MA Chun-mei GONG Zhen-ping DONG Shou-kun ZHANG Lei |
| Institution: | (1.College of Agriculture, Northeast Agricultural University, Harbin, Heilongjiang 150030；2. the National Research Center of Soybean Engineering and Technology, Harbin, Heilongjiang 150030; 3.Soil and Fertilizer Institute of Heilongjiang Academy of Agricultural Sciences, Harbin, Heilongjiang 150086) |
| Abstract: | Methods of sand cultre and 15N tracing were used to study the effects of nitrogen application on yield and nitrogen accumulation in soybean variety SN14. The results showed as follows: accumulated nitrogen in the whole plant, petiole, pod shell and seed increased at the beginning and then decreased with the increase of nitrogen levels; Nitrogen accumulation in leaf and stem increased in 3 and 5 times for N150 than that of N0, which indicated that high nitrogen levels promoted the nitrogen accumulation in leaf and stem, however compared with N0, nitrogen accumulation in root, Nodulation-N accumulated in the whole plant and seed of N150 decreased by 60.3%，74.9% and 85.7% respectively, and Fertilizer-N harvest index of N150 decreased, which was 19.8% lower than that of N50, as well as Nodulation-N harvest index 25.5% lower than that of N50. The nitrogen levels of soybean yield also firstly increased and then decreased; Compared with N0, plant height, pod height and lowest pod nodes of soybean treated with N150 increased by 55.2%, 199.7% and 142.9% respectively, while no effects were found on node number. |
| Keywords: | soybean nitrogen accumulation yeild |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《核农学报》浏览原始摘要信息 | |
| 点击此处可从《核农学报》下载免费的PDF全文 | |