兰州大学机构库 >草地农业科技学院
Intensifying a semiarid wheat monocropping with forage rape as a replacement to fallow period in China
Deng, Jianqiang1,2,3; Zhang, Zhixin4; Ni, Hong1,2,3; Lai, Xingfa1,2,3; Usman, Samaila1,2,3; Yang, Q(杨倩)1,2,3; Yang, XL(杨宪龙)1,2,3; Coulter, Jeffrey A.5; Shen, YY(沈禹颖)1,2,3,6
2021-01
Source PublicationCROP SCIENCE
ISSN0011-183X
AbstractThe traditional cropping system on the Loess Plateau of China is winter wheat (Triticum aestivum L., W) monocropping. However, this cropping system, with a 3-mo summer fallow (F) period, has exhibited low radiation and precipitation use efficiency. The objectives of this study conducted in 2016-2018 was to investigate system productivity and resource (i.e., water and radiation) use efficiency when winter wheat monocropping was intensified by planting forage rape (Brassica napus L., R) during the summer fallow period. Dry matter yield (DM), water use efficiency (WUE), and radiation use efficiency (RUE) of forage rape and winter wheat in F-W and R-W crop rotations were determined. The results show that forage rape did not change system DM in all years, and winter wheat grain yield as well as DM in 2018, but decreased winter wheat grain yield and DM by 17 and 16% in 2017, respectively. Forage rape increased the system average water use (WU) by 20%, whereas system WUE of DM (WUEDM) was unaffected in both years. Forage rape also improved system intercepted photosynthetically active radiation (IPAR) by 39% but did not alter winter wheat IPAR in both years. In 2017, intensification with forage rape decreased winter wheat RUEDM and RUE of grain (RUEGrain). In conclusion, crop productivity was mainly related to water availability during sowing and the growing season, whereas RUE was related to crop productivity. Therefore, soil water supply needs to be considered before sowing forage rape during the summer fallow in the semiarid region of China as examined in this study.
PublisherWILEY
DOI10.1002/csc2.20412
Indexed BySCOPUS ; SCIE
Language英语
WOS Research AreaAgriculture
WOS SubjectAgronomy
WOS IDWOS:000607640600001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/449006
Collection草地农业科技学院
Corresponding AuthorShen, Yuying
Affiliation1.Lanzhou Univ, State Key Lab Grassland Agroecosyst, 768 Jiayuguanxi Rd, Lanzhou 730020, Gansu, Peoples R China;
2.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730020, Peoples R China;
3.Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, Minist Agr & Rural Affairs, Lanzhou 730020, Peoples R China;
4.Northwest A&F Univ, Coll Grassland Agr, Yangling 712100, Shaanxi, Peoples R China;
5.Univ Minnesota, Dept Agron & Plant Genet, St Paul, MN 55108 USA;
6.Lanzhou Univ, Natl Demonstrat Ctr Expt Grassland Sci Educ, Lanzhou 730020, Peoples R China
First Author AffilicationCollege of Pastoral Agriculture Science and Technology
Corresponding Author AffilicationCollege of Pastoral Agriculture Science and Technology
Recommended Citation
GB/T 7714
Deng, Jianqiang,Zhang, Zhixin,Ni, Hong,et al. Intensifying a semiarid wheat monocropping with forage rape as a replacement to fallow period in China[J]. CROP SCIENCE,2021.
APA Deng, Jianqiang.,Zhang, Zhixin.,Ni, Hong.,Lai, Xingfa.,Usman, Samaila.,...&Shen, Yuying.(2021).Intensifying a semiarid wheat monocropping with forage rape as a replacement to fallow period in China.CROP SCIENCE.
MLA Deng, Jianqiang,et al."Intensifying a semiarid wheat monocropping with forage rape as a replacement to fallow period in China".CROP SCIENCE (2021).
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