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Multi-Site Evaluation of Accumulated Temperature and Rainfall for Maize Yield and Disease in Loess Plateau

Author

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  • Xiaoyue Wang

    (College of Agronomy, Northwest A&F University, Yangling 712100, China
    These authors contributed equally to this work.)

  • Xinghua Zhang

    (College of Agronomy, Northwest A&F University, Yangling 712100, China
    These authors contributed equally to this work.)

  • Mingxian Yang

    (College of Agronomy, Northwest A&F University, Yangling 712100, China)

  • Xiaonan Gou

    (College of Agronomy, Northwest A&F University, Yangling 712100, China)

  • Binbin Liu

    (College of Agronomy, Northwest A&F University, Yangling 712100, China)

  • Yinchuan Hao

    (College of Agronomy, Northwest A&F University, Yangling 712100, China)

  • Shutu Xu

    (College of Agronomy, Northwest A&F University, Yangling 712100, China)

  • Jiquan Xue

    (College of Agronomy, Northwest A&F University, Yangling 712100, China)

  • Xiaoliang Qin

    (College of Agronomy, Northwest A&F University, Yangling 712100, China)

  • Kadambot H. M. Siddique

    (The UWA Institute of Agriculture and School of Agriculture & Environment, The University of Western Australia, LB 5005, Perth, WA 6001, Australia)

Abstract

The Guanzhong region is a typical and important grain-producing area in China. The effect of accumulated temperature and rainfall on maize production is important in the face of global warming. Here, we collected meteorological data from six test sites in the Guanzhong region to study climate change from 1972 to 2018 in this area. A two-year study was conducted at multiple experimental sites to analyze the effect of climatic factors on maize yield and disease in the Guanzhong region. In the past 40 years, average temperatures have significantly increased at all sites, except for Hancheng. Rainfall varied significantly between years at each site, except for Huxian, with an overall declining trend. Accumulated temperature had a significant positive effect on yield (R 2 = 0.28, p = 0.041 < 0.05), but rainfall did not affect yield (R 2 = 0.0971, p = 0.324 > 0.05). During the growing period, total rainfall had a significant positive correlation with northern leaf blight disease in maize, and rainfall before silking had a significant positive correlation with ear length and row grain number. The demand for accumulated temperature by maize differed between sites. It is predicted that maize yield will increase with increasing temperature in the Guanzhong region. Greater attention should be paid to improve agronomic practices, such as adjustment of sowing dates, straw mulching, deep tillage, and pest control to adapt to future climate change.

Suggested Citation

  • Xiaoyue Wang & Xinghua Zhang & Mingxian Yang & Xiaonan Gou & Binbin Liu & Yinchuan Hao & Shutu Xu & Jiquan Xue & Xiaoliang Qin & Kadambot H. M. Siddique, 2021. "Multi-Site Evaluation of Accumulated Temperature and Rainfall for Maize Yield and Disease in Loess Plateau," Agriculture, MDPI, vol. 11(4), pages 1-13, April.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:4:p:373-:d:539476
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    References listed on IDEAS

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    1. Robert Mendelsohn & Ariel Dinar, 2009. "Climate Change and Agriculture," Books, Edward Elgar Publishing, number 12990.
    2. Xiao, Dengpan & Liu, De Li & Wang, Bin & Feng, Puyu & Bai, Huizi & Tang, Jianzhao, 2020. "Climate change impact on yields and water use of wheat and maize in the North China Plain under future climate change scenarios," Agricultural Water Management, Elsevier, vol. 238(C).
    3. Qaisar Saddique & Huanjie Cai & Jiatun Xu & Ali Ajaz & Jianqiang He & Qiang Yu & Yunfei Wang & Hui Chen & Muhammad Imran Khan & De Li Liu & Liang He, 2020. "Analyzing adaptation strategies for maize production under future climate change in Guanzhong Plain, China," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 25(8), pages 1523-1543, December.
    4. Kim, Taeyoung & Son, Minhui & Rho, Ho Young, 2019. "Impact of climate change and extreme weather events on crop pests and diseases using spatial econometric approach," 2019 Annual Meeting, July 21-23, Atlanta, Georgia 290809, Agricultural and Applied Economics Association.
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