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| 施氮模式对春玉米养分吸收动态的影响 | |
| 引用本文： | 隽英华,汪 仁,孙文涛,邢月华,宫 亮,蔡广兴. 施氮模式对春玉米养分吸收动态的影响[J]. 玉米科学, 2011, 19(4): 121-124 |
| 作者姓名： | 隽英华 汪 仁 孙文涛 邢月华 宫 亮 蔡广兴 |
| 作者单位： | 辽宁省农业科学院环境资源与农村能源研究所,沈阳,110161 |
| 基金项目： | 科技部支撑计划(2006BAD02A12)、农业公益性行业科研专项项目(201003046-7)、国家科技支撑项目(2008BADA4B06) |
| 摘 要： | 通过春玉米田间试验和室内分析,研究施氮模式对春玉米养分吸收动态及氮肥利用率的影响。结果表明,施氮提高了玉米植株氮、磷、钾含量,改善了玉米产量性状。随着生育期推进,玉米植株各器官氮、钾含量逐渐降低,磷含量变化无规律性。与其他施氮模式相比,二次追肥和一次深施处理显示出较大的优势,其中,产投比分别为7.78和6.93,氮肥农学效率分别为29.05 kg/kg和24.38 kg/kg,氮肥利用率分别为40.13%和39.92%。结合玉米的生理需肥特性和肥料性质,磷、钾肥作基肥,氮肥作基肥+拔节肥追肥+大喇叭口肥追肥和氮肥一次深施为适宜的施肥技术。 |
| 关 键 词： | 春玉米 施氮模式 养分吸收 |
| 收稿时间： | 2010-05-06 |
Effect of Nitrogen Application Models on the Dynamic of Nutrient Absorption of Spring Maize |
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| JUAN Ying-hu,WANG Ren,SUN Wen-tao,XING Yue-hu,GONG Liang,CAI Guang-xing. Effect of Nitrogen Application Models on the Dynamic of Nutrient Absorption of Spring Maize[J]. Journal of Maize Sciences, 2011, 19(4): 121-124 | |
| Authors: | JUAN Ying-hu WANG Ren SUN Wen-tao XING Yue-hu GONG Liang CAI Guang-xing |
| Affiliation: | JUAN Ying-hua,WANG Ren,SUN Wen-tao,XING Yue-hua,GONG Liang,CAI Guang-xing (Institute of Environmental Resource and Agricultural Energy,Liaoning Academy of Agricultural Sciences,Shenyang 110161,China) |
| Abstract: | By the test in spring maize field and laboratory analysis,the dynamic behavior of nutrient absorption of spring maize and the fertilizer N use efficiency were studied as affected by models of nitrogen application.The results showed that nitrogen application enhanced N,P and K contents of maize plant,and improved the maize yield charac-ter.With growth stages,the N and K contents of each organ of maize plant decreased,and P content changed with no rule.Compared with other models of nitrogen application,two to... |
| Keywords: | Spring maize Nitrogen application model Nutrient absorption |
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