干旱区生态环境知识资源中心(Arid): 氮磷肥配施对冬小麦灌浆期光合参数及产量的影响

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	氮磷肥配施对冬小麦灌浆期光合参数及产量的影响
其他题名	Effect of Combined Application of Nitrogen and Phosphorus on Photosynthesis Parameters at Grain-filling Stage and Grain Yield in Winter Wheat
	黄彩霞 1; 柴守玺 1; 赵德明 2; 常磊 1; 程宏波 3; 杨长刚 1
来源期刊	植物学报
ISSN	1674-3466
出版年	2015
卷号	50 期号:1 页码:47-54
中文摘要	在西北绿洲生态条件下,实验设4个处理,即165(N1)和225 kg·hm~(-2)(N_2)2个氮素(纯氮)水平及105(P_1)和165kg·hm~(-2)(P_2)2个磷素(P_2O_5)水平,研究了氮磷肥配施对冬小麦(Triticum aestivum)品种临抗2号光合特性及产量的影响。结果表明,低氮(165 kg·hm~(-2))处理组的净光合速率(P_n)、气孔导度(G_s)及蒸腾速率(T_r)日变化均呈双峰曲线,有光合午休现象;高氮(225 kg·hm~(-2))处理可减弱甚至使光合午休现象消失;高磷(165 kg·hm~(-2))和低磷(105 kg·hm~(-2))处理对光合特性的影响差异不显著。N2P2具有最高的群体叶面积指数(LAI)、群体光合速率(CAP)、穗粒数、亩穗数、千粒重及产量,且与N_1P_1和N_1P_2的差异均达显著水平,与N_2P_1则无显著差异。但N2P2水分利用效率(WUE)低于N_2P_1,显著高于N_1P_1和N_1P_2(N_1P_1高于N_1P_2,但无显著差异)。氮肥对光合午休的影响大于磷肥,二者互作效应差异不显著。该实验条件下,当N、P分别为225和105 kg·hm~(-2)时有利于提高冬小麦的光合速率及产量。
英文摘要	The effect of nitrogen and phosphorus fertilizer on photosynthetic characteristics and grain yield of winter wheat were investigated in the Northwest Oasis area of China. Four treatments were 2 for nitrogen (165 and 225 kg·hm~(-2)) and 2 for phosphorus (105 and 165 kg·hm~(-2)). With low N application (N_1P_1, N_1P_2), the diurnal variations of net photosynthetic rate (P_n), stomatal conductance (G_s) and transpiration rate (T_r) were presented as double-peak curves, with obvious midday decrease in photosynthesis. With high N (N_2P_1, N2P2), the midday decrease in photosynthesis weakened or even disappeared. Fertilizer P had less effect on the photosynthesis as compared with N. Among the fertilization treatments, treatment N2P2 conferred the highest leaf area index, canopy apparent photosynthetic rate (CAP), grain number, spike number, 1 000 grain weight and grain yield as compared with N_1P_1 and N_1P_2, but not N_2P_1. Water-use efficiency was lower with N2P2 than N_2P_1 and significantly higher for both N_1P_1 and N_1P_2, with no difference between N_1P_1 and N_1P_2. Fertilizer N had greater effect on the midday decrease in photosynthesis than P, but the combined application of N and P had no significant co-effect. A combined application of 225 (N) and 105 kg·hm~(-2) (P) enhanced Pn and grain yield.
中文关键词	氮 ; 磷 ; 光合参数 ; 冬小麦 ; 产量
英文关键词	nitrogen phosphorus photosynthesis parameters winter wheat grain yield
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5351406
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233634
作者单位	1.甘肃农业大学农学院, 兰州, 甘肃 730070, 中国; 2.甘肃省政府投资项目评审中心, 兰州, 甘肃 730030, 中国; 3.甘肃农业大学生命科学技术学院, 兰州, 甘肃 730030, 中国
推荐引用方式 GB/T 7714	黄彩霞,柴守玺,赵德明,等. 氮磷肥配施对冬小麦灌浆期光合参数及产量的影响[J]. 甘肃农业大学,2015,50(1):47-54.
APA	黄彩霞,柴守玺,赵德明,常磊,程宏波,&杨长刚.(2015).氮磷肥配施对冬小麦灌浆期光合参数及产量的影响.植物学报,50(1),47-54.
MLA	黄彩霞,et al."氮磷肥配施对冬小麦灌浆期光合参数及产量的影响".植物学报 50.1(2015):47-54.