| 积温对春玉米叶面积、生物量和产量的影响 |
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| 引用本文： | 马树庆,王琪,徐丽萍,于海,张铁林. 积温对春玉米叶面积、生物量和产量的影响[J]. 现代农业科技, 2011, 0(13): 284-285,288 |
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| 作者姓名： | 马树庆 王琪 徐丽萍 于海 张铁林 |
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| 作者单位： | 吉林省气象台;吉林省气象研究所;榆树市农业气象试验站; |
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| 基金项目： | 国家科技支撑项目(2006BAD04B02); 国家行业专项(GYHY20096021) |
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| 摘 要： | 进行积温对春玉米叶面积、生物量和产量影响试验,结果表明:积温与叶面积指数、生物量和产量之间存在密切的线性关系,积温每增加100℃.d,最大叶面积指数增加0.4,物量增加162 g/hm2,单产增加591 kg/hm2;积温每增加10%,玉米叶面积增加8%,最大生物量增加12.5%;气温升高1℃,玉米生物量增加243 g/m2,产量增加9.8%左右。反之,活动积温减少100℃.d左右,玉米单产减少8%～10%,将发生低温冷害。正常年份,当地适宜种中晚熟品种和正常偏晚播种。在水分条件比较适宜的条件下,气候变暖对提高玉米产量有利。
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| 关 键 词： | 玉米 积温变化 生物量 产量 叶面积 |
Effect of Accumulated Temperature on Maize LAI,Biomass and Yield |
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| MA Shu-qing WANG Qi XU Li-ping YU Hai ZHANG Tie-lin. Effect of Accumulated Temperature on Maize LAI,Biomass and Yield[J]. Modern Agricultural Sciences and Technology, 2011, 0(13): 284-285,288 |
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| Authors: | MA Shu-qing WANG Qi XU Li-ping YU Hai ZHANG Tie-lin |
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| Affiliation: | MA Shu-qing 1 WANG Qi 2 XU Li-ping 3 YU Hai 3 ZHANG Tie-lin 3(1 Meteorological Observatory of Jilin Province,Changchun Jilin 130062,2 Institute of Meteorological Science of Jilin Province,3 Agrometeorological Observatory of Yushu County) |
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| Abstract: | Effect of accumulated temperature on maize LAI,biomass and yield was study.The relation between LAI,biomass and yield of maize and accumulated temperature was closer.If cumulative temperature increased by 100 ℃·d,the maximal LAI of maize would increase by |
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| Keywords: | maize accumulated temperature change biomass yield LAI |
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