| 不同灌水定额对膜下滴灌玉米生长指标及产量的影响 |
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| 引用本文： | 徐剑,赵经华,黄红建,马英杰,杨磊.不同灌水定额对膜下滴灌玉米生长指标及产量的影响[J].节水灌溉,2017(1). |
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| 作者姓名： | 徐剑 赵经华 黄红建 马英杰 杨磊 |
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| 作者单位： | 1. 新疆农业大学水利与土木工程学院,乌鲁木齐,830052;2. 阿勒泰地区水利管理处,新疆阿勒泰,836500 |
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| 基金项目： | 新疆水利科技项目，新疆水利电工程重点学科基金资助项目 |
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| 摘 要： | 为探明膜下滴灌玉米产量和不同灌水定额的关系,基于大田试验,对玉米全生育期内测量了株高、基部茎围,记录了灌水情况及产量等指标。试验结果表明:膜下滴灌玉米总体株高、基部茎围、产量随着灌水定额的增加而呈上升趋势,玉米基部茎围在生育后期有下降趋势。处理W5下玉米株高、基部茎围最大,当灌水定额在W5以上不利于玉米生长。因为,一方面处理W6的产量最大,W5和W6对产量无明显差异,另一方面,W5的灌溉水利用系数比W6高且在6个处理中最高,所以当灌水定额大于W5时,单方面增加灌水定额以提高玉米产量的做法是不可取的。经相关性分析,单株有效穗数、灌溉水利用系数对玉米产量呈显著性相关。综合分析后处理W5中是最好的选择。
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| 关 键 词： | 膜下滴灌 玉米 生长指标 产量 |
Effect of Different Irrigation Quota on Yield and Growth Indexes of Maize under Drip Irrigation under Film |
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| XU Jian,ZHAO Jing-hua,HUANG Hong-jian,MA Ying-jie,YANG Lei.Effect of Different Irrigation Quota on Yield and Growth Indexes of Maize under Drip Irrigation under Film[J].Water Saving Irrigation,2017(1). |
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| Authors: | XU Jian ZHAO Jing-hua HUANG Hong-jian MA Ying-jie YANG Lei |
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| Abstract: | In order to explore the relationship between corn yield and irrigation quota of drip irrigation under film, based on field experi-ments, by measuring the plant height and basal stem circumference of corn and recording irrigation amount and yield components during the whole growth period, it can be found that plant height, basal stem circumference and yield are positively and highly correlated with irrigation quota, while basal stem circumference tends to decrease at the later growth stage.Both plant height and basal stem circumference of corn reach the maximum value in W5 case, and the higher irrigation quota than that of W5 will be unfavorable to the growth of corn.The corn yield of W5 case is almost the same with that of W6 case, in which the yield is the highest.Besides, water use efficiency of W5 is the highest one. Therefore, it is not advisable to increase corn yield by simply increasing the irrigation quota when irrigation quota is higher than that of W5. Correlation analysis result indicates that corn yield is significantly associated with seed weight per unit area, ear length, effect panicle per plant, and water use efficiency.After comprehensive analysis, it can be concluded that the irrigation quota of W5 is the best choice for well growth of corn with high water use efficiency. |
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| Keywords: | drip irrigation under mulch maize growth index yield |
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