Summary
The regional climate over China has changed pronouncedly since the mid-20th, posing substantial risks and uncertainties to local crop production. The maize production has demonstrated considerable sensitivity to such changes. Observations in recent years witnessed that the use of fertilizer has been a crucial contributor to the increase in yields of global staple crops including maize. Thus, adjusting fertilizer use is a potential measure to offset the negative impacts of climate change on staple crops, while quantifying the pros and cons of such a measure for maize production has not been sufficiently performed. Based on multiple sources of observational records and statistical yield simulations, this study assesses the impacts of historical trends of regional climate and fertilizer use o
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