您好，欢迎访问内蒙古农牧业科学院 机构知识库！
内蒙古农牧业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Intercropping potato (Solanum tuberosum L.) with hairy vetch (Vicia villosa) increases water use efficiency in dry conditions

文献类型： 外文期刊

作者： Ren, Jianhong 1 ; Zhang, Lizhen 1 ; Duan, Yu 2 ; Zhang, Jun 2 ; Evers, Jochem B. 4 ; Zhang, Yue 1 ; Su, Zhicheng 5 ; van 1 ;

作者机构： 1.China Agr Univ, Coll Resources & Environm Sci, Agr Meteorol Dept, Beijing 100193, Peoples R China

2.Minist Agr, Sci & Observing Expt Stn Agroenvironm, Wuchuan 010031, Hohhot, Peoples R China

3.Inner Mongolia Acad Agr & Anim Husb Sci, Hohhot 010031, Inner Mongolia, Peoples R China

4.Wageningen Univ, Ctr Crop Syst Anal, Droevendaalsesteeg 1, NL-6708 PB Wageningen, Netherlands

5.China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China

关键词： Biomass; Daily water use; Land equivalent ratio (LER); Water equivalent ratio (WER); Water saving

期刊名称：FIELD CROPS RESEARCH （ 影响因子：5.224； 五年影响因子：6.19 ）

ISSN： 0378-4290

年卷期： 2019 年 240 卷

页码：

收录情况： SCI

摘要： Protection from soil erosion and efficient use of water are vital to sustainable dryland potato production in semiarid regions. Introducing legumes into semi-arid agricultural systems as intercrops improves soil quality due to biological nitrogen fixation and reduced wind erosion as a result of better soil cover, but the consequences of introducing legumes for the water use efficiency of the crop system are less predictable. Here we carried out field experiments from 2014 to 2017 in Inner Mongolia, China. We compared a rotational intercropping system of potato (Solanum tuberosum L.) and hairy vetch (Vida villosa) with monocultures of potato and hairy vetch and quantified crop yield, water use efficiency and land productivity. While the relative density (the ratio of plant density in intercrop and the density in sole stand) of both crops in the intercropping was 0.5, the average relative yield of the potato over four years was 0.43, but that of the vetch was 0.87, indicating dominance of the vetch in the intercropping system. Land and water equivalent ratios, defined as the area of land or amount of water that would be needed in single cropping to achieve the same yield as in intercropping, averaged to 1.30 and 1.29 over the years, respectively, indicating high relative land and water productivity of potato/hairy vetch intercropping compared to monocultures. Vetch was a stronger competitor for water than potato with a partial water equivalent ratio of 0.83. We conclude that the potato/vetch intercropping system improves land productivity and system level water use efficiency under the rain-fed semi-arid conditions of the study site. These results are useful to optimize cropping systems for regional sustainability with consideration of both arable crop production (potato) and provision of fodder for animal husbandry (vetch).

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：内蒙古农牧业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台