您好，欢迎访问甘肃省农业科学院 机构知识库！
甘肃省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Film mulched furrow-ridge water harvesting planting improves agronomic productivity and water use efficiency in Rainfed Areas

文献类型： 外文期刊

作者： Fan, Tinglu 1 ; Wang, Shuying 1 ; Li, Yongping 2 ; Yang, Xiaomei 3 ; Li, Shangzhong 1 ; Ma, Mingsheng 1 ;

作者机构： 1.Gansu Acad Agr Sci, Dryland Agr Inst, Lanzhou 730070, Gansu, Peoples R China

2.Guyuan Inst Agr Sci, Ningxia 745000, Ningxia Hui Ato, Peoples R China

3.Northwest A&F Univ, Yangling 712100, Shaanxi, Peoples R China

关键词： Film mulched corn; Furrow-ridge water harvesting; Rain-harvesting efficiency; Soil desiccation; Soil water changes; Water-use efficiency

期刊名称：AGRICULTURAL WATER MANAGEMENT （ 影响因子：4.516； 五年影响因子：5.12 ）

ISSN： 0378-3774

年卷期： 2019 年 217 卷

页码：

收录情况： SCI

摘要： Film fully-mulched ridge-furrow (FMRF) water harvesting, film mulched conventional flat planting with one-half (FMCF) and two-thirds (FTMCF) has been widely adopted in Northern China. However, it is unclear whether sustainability are. An 8-year corn yield in these three systems was investigated at Zhenyuan of East Gansu in 2008 to 2015, and a 4-year location study with FMRF and FMCF, three corn hybrids, and three densities was conducted at Pengyang of South Ningxia from 2012 to 2015. The results indicated that FMRF with rain-harvesting efficiency of 65.7%-82.7% makes rainwater infiltrate deep soil and soil moisture double increase in furrow root-zone. The 8-year average grain yield increased by 22.7% in FMRF and 14.5% in FTMCF compared with FMCF. In the 4-year field trail, rainfall and its seasonal distribution highly impacted grain yield and water-use efficiency (WUE), but order of importance for grain yield and WUE increases were density > mulching type > hybrid. Grain yield and WUE increased by 20.0% and 3.45 kg ha(-1) mm(-1) and 12.0% and 2.97 kg ha(-1) mm(-1) from low to medium density and medium to high density; ET and grain yield and WUE increased simultaneously from low to medium density, however grain yield and WUE improved but ET changed slightly from medium to high. Soil water content of the 0-200 cm layer during growing season was always higher in FMRF than in FMCF, and ET did not differ. FMRF kept more than 50-90 mm soil water in the 0-200 cm during grain filling period. Neither higher grain yield in the FMRF depleted soil water, nor resulted in soil desiccation regardless of the year of precipitation. On the contrary, the FMRF kept much more water into soil layers at corn harvest, and negative effects to soil water balance were not observed. Thus, the package of FMRF combining with close planting and density tolerance hybrids is climate-smart technique for coping with droughts and ensuring corn yield in rainfed areas.

  • 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：甘肃省农业科学院

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