| 春玉米平衡施肥效果的研究 |
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| 引用本文： | 谢佳贵,王立春,尹彩侠,侯云鹏,杨贵莲,张国辉,于雷. 春玉米平衡施肥效果的研究[J]. 吉林农业科学, 2008, 33(6) |
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| 作者姓名： | 谢佳贵 王立春 尹彩侠 侯云鹏 杨贵莲 张国辉 于雷 |
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| 作者单位： | 吉林省农业科学院,长春,130033;洮南市农业技术推广中心,吉林,洮南,137100 |
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| 基金项目： | 中加合作项目(IPNI)平衡施肥示范计划 |
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| 摘 要： | 田间试验表明:春玉米平衡施肥不仅可以提高产量,还可以促进其对养分的吸收,在OPT施肥处理水平下,每形成100 kg玉米子粒吸收1.56 kg的N、0.25 kg的P2O5、0.73 kg的K2O,玉米吸收N、P、K的比例约为1∶0.16∶0.47,吸收N、P、K高峰期出现在拔节期至大喇叭口期。在供试土壤上,N是限制高产的主要养分限制因子,中、微量元素目前还没有成为土壤的养分限制因子。
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| 关 键 词： | 春玉米 平衡施肥 产量 养分吸收 限制因子 |
Studies on the Effect of Balanced Fertilization to Spring Maize |
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| XIE Jia-gui,WANG Li-chun,YIN Cai-xia,HOU Yun-peng,YANG Gui-lian,ZHANG Guo-hui,YU Lei. Studies on the Effect of Balanced Fertilization to Spring Maize[J]. Journal of Jilin Agricultural Sciences, 2008, 33(6) |
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| Authors: | XIE Jia-gui WANG Li-chun YIN Cai-xia HOU Yun-peng YANG Gui-lian ZHANG Guo-hui YU Lei |
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| Affiliation: | XIE Jia-gui,WANG Li-chun,YIN Cai-xia,HOU Yun-peng,YANG Gui-lian,ZHANG Guo-hui,YU Lei(Academy of Agricultural Sciences of Jillin Province,Changchun 130033,China) |
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| Abstract: | Field experiment showed that balanced fertilization not only increased maize yield but also promoted nutrient uptake,N,P,K uptake per 100 kg grain was 1.56 kg,0.25 kg and 0.73 kg respectively,and proportion of NPK uptake was 1-0.16-0.47 under OPT level.NPK absorption peak stage was at jointing stage to belling stage.N was the first limiting factor for high yielding maize under the experiment conditions of soil fertility.Secondary and micro-nutrients was not the limiting factor for maize yield. |
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| Keywords: | Spring maize Balanced fertilization Yield Nutrient uptake Limiting factor |
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