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| 不同施肥水平对旱地马铃薯水分利用效率的影响 |
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王立为1, 潘志华2,3, 高西宁1, 陈东东2, 张璐阳2, 程路2, 周蒙蒙2, 李超2, 赵沛义4,3
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| (1.沈阳农业大学 农学院, 沈阳 110866;2.中国农业大学 资源与环境学院, 北京 100193;3.农业部农牧交错带生态环境重点野外科学观测实验站, 内蒙古 武川 011700;4.内蒙古农牧业科学院 植物营养与分析研究所, 呼和浩特 010031) |
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| 摘要: |
| 基于内蒙古武川县旱地农田试验,研究施肥对马铃薯耗水量及水分利用效率的影响,以期为区域农业可持续发展与生态建设提供科学依据。 研究显示:随着施肥量的增加,耗水量加大,但施肥量达到一定程度时耗水量开始减少;在多雨年,产量和耗水量都较高;在少雨年,产量和耗水量均较低。马铃薯产量与耗水量之间相关关系呈对数型曲线。综合考虑产量与水分利用效率,在多雨年,中肥处理既能保证较高的水分利用效率,也能保证较高产量;少雨年采取低肥处理,正常年采取中低肥处理较适宜。研究表明,农业生产中应根据不同降水水平,通过适度施肥来提高马铃薯田水分利用效率,从而达到稳产并节水保墒的目的。 |
| 关键词: 马铃薯 旱地 施肥水平 耗水量 水分利用效率 |
| DOI：10.11841/j.issn.1007-4333.2012.02.010 |
| 投稿时间：2011-10-24 |
| 基金项目:国家科技支撑计划(2012BAD09B00); 国家 "973" 计划项目(2012CB956200) |
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| Influence of different fertility levels water use efficiency of the potato in the dry land |
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WANG Li-wei1, PAN Zhi-hua2,3, GAO Xi-ning1, CHEN Dong-dong2, ZHANG Lu-yang2, CHENG Lu2, ZHOU Meng-meng2, LI Chao2, ZHAO Pei-yi4,3
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| (1.College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China;2.College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China;3.Key Observation Station of Ecologic Environment of Ministry of Agriculture, Wuchuan 011700, China;4.Plant Nutrition and Analysis Institute, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Huhhot 010031, China) |
| Abstract: |
| This paper is on the effect of fertilization on the water consumption and use efficiency for potato from the experiments of farmland in WuChuan County,Inner Mongolia,so as to provide a scientific basis for sustainable development and eco-regional agricultural building.It is shown that with the increase of fertilizer,water consumption increased,But it decreased when the fertilizer reached to a certain degree.In rainy years,production and water consumption were high,but in dry years they were low.The relationship between potato yield and water consumption is logarithmic.Considering the production and water use efficiency,in rainy years,the middle-fertilizer treatment is appropriate and low fertilizer in dry years and low or middle fertilizer in normal years.It indicates that agricultural production should be based on different levels of precipitation.So from moderate fertilization on potato fields,it would ensure production and section water conservation. |
| Key words: potato dry land fertility levels water consumption water use efficiency |
