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| 不同肥料水平对玉米光合生理及产量的影响 | |
| 引用本文： | 吕军峰,郭天文,杨文玉,王国栋.不同肥料水平对玉米光合生理及产量的影响[J].甘肃农业科技,2007(12):13-15. |
| 作者姓名： | 吕军峰 郭天文 杨文玉 王国栋 |
| 作者单位： | 1. 甘肃省农业科学院旱地农业研究所,甘肃,兰州,730070 2. 甘肃省农业科学院土壤肥料与节水农业研究所,甘肃,兰州,730070 3. 甘肃省农业科学院畜草品种改良研究所,甘肃,兰州,730070 |
| 基金项目： | 甘肃省扶贫办张家川回族自治县整县农业科技承包项目 |
| 摘 要： | 在不同肥料水平下研究了玉米杂交种沈单16号的籽粒产量及光合生理指标,结果表明,氮、磷、钾对夏玉米的净光合速率、气孔导度和蒸腾速率的交互效应为正效应,并在OPT处理下达到最佳;其它各处理的净光合速率、气孔导度和蒸腾速率较对照增加幅度由大到小依次为OPT-P/2、OPT P/2、OPT-K、OPT-N、OPT-P.试验条件下,磷肥对夏玉米的净光合速率、气孔导度和蒸腾速率影响不明显.在大田最佳施肥(OPT)处理下,玉米籽粒产量最高,为12 777.0 kg/hm2,较对照增产31.6%,与对照差异达极显著;在OPT处理的基础上,N和P、P和K、N和K的交互效应均为正效应,都有增产效应,但以OPT处理为最佳. |
| 关 键 词： | 肥料水平 玉米 光合生理 产量 |
| 文章编号： | 1001-1463（2007）12-0013-03 |
| 收稿时间： | 2006-12-18 |
| 修稿时间： | 2007-05-26 |
Effects of Different N,P and K Fertilizer Levels on Photosynthetic Physiology and Yield in Maize |
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| LV Jun-feng,GUO Tian-wen,YANG Wen-yu,WANG Guo-dong.Effects of Different N,P and K Fertilizer Levels on Photosynthetic Physiology and Yield in Maize[J].Gansu Agricultural Science and Technology,2007(12):13-15. | |
| Authors: | LV Jun-feng GUO Tian-wen YANG Wen-yu WANG Guo-dong |
| Institution: | 1. Dryland Agriculture Institute of Gansu Academy of Agricultural Sciences, Lanzhou Gansu 730070, China; 2. Soil and Fertilizer Institute of Gansu Academy of Agricultural Sciences, Lanzhou Gansu 730070, China; 3. Reformation of Animal and Grass Varieties Institute of Gansu Academy of Agricultural Sciences, Lanzhou Gansu 730070, China |
| Abstract: | The studies on parameters of photosynthetic physiology and yield were carried on maize hybrid Shen Dan 16 at different levels of N,P and K fertilizer.It is shown that there was a significantly positive relationship between the net photosynthetic rate(Pn)and transpiration rate(Tr) and stomatal conductance(Gs) of summer maize under N,P and K fertilizer.Especially,It is optimal under treatment of OPT.The rate of increase of net photosynthetic rate(Pn),stomatal conductance(Gs) and transpiration rate(Tr) in treatment of OPT-P/2,OPT P/2,OPT-K,OPT-N,OPT-P are decreased gradually comapared to CK.However,it is not obvious that phosphate fertilizer impact to net photosynthetic rate(Pn),stomatal conductance(Gs) and transpiration rate(Tr).The highest grain yield of corn,12 777.0 kg/hm2 is obatined in best teatement of OPT fertilization,significant increased 31.6% comapred to CK. Interaction of NPK fertilizers based on treatment OPT were positive on the corn yield.And it is optimal under OPT treatment especially. |
| Keywords: | Fertilizer levels Maize Photosynthetic physiology Yield |
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