A bibliographic review of climate change and fertilization as the main drivers of maize yield: implications for food security

Agriculture & Food Security

Review

Szilárd Szabó¹  Imre János Holb²  Endre Harsanyi³  Tamás Rátonyi³  Safwan Mohammed³  Adrienn Széles³  Akasairi Ocwa⁴ 

[1]Department of Physical Geography and Geoinformatics, Faculty of Science and Technology, University of Debrecen, 4032, Debrecen, Hungary

[2]Eötvös Loránd Research Network (ELKH), Centre for Agricultural Research, Budapest, Hungary

[3]Institute of Horticulture, University of Debrecen, 138 Böszörményi Street, 4032, Debrecen, Hungary

[4]Institute of Land Use, Engineering and Precision Farming Technology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 138 Böszörményi Street, 4032, Debrecen, Hungary

[5]Institute of Land Use, Engineering and Precision Farming Technology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, 138 Böszörményi Street, 4032, Debrecen, Hungary

[6]Department of Agriculture Production, Faculty of Agriculture, Kyambogo University, P. O. B. 1, Kyambogo, Kampala, Uganda

关键词: Climate change;    Drought;    Fertilizers;    Heat stress;    Maize;    Nitrogen;    Temperature;    Yield;   

DOI  :  10.1186/s40066-023-00419-3

 received in 2022-08-09, accepted in 2023-04-03,  发布年份 2023

来源: Springer

【 摘 要 】

IntroductionCrop production contribution to food security faces unprecedented challenge of increasing human population. This is due to the decline in major cereal crop yields including maize resulting from climate change and declining soil infertility. Changes in soil nutrient status and climate have continued to occur and in response, new fertilizer recommendations in terms of formulations and application rates are continuously developed and applied globally. In this sense, this review was conducted to: (i) identify the key areas of concentration of research on fertilizer and climate change effect on maize grain yield, (ii) assess the extent of the effect of climate change on maize grain yield, (iii) evaluate the extent of the effect of fertilization practices on maize grain yield, and (iv) examine the effect of interaction between climate change factors and fertilization practices on maize grain yield at global perspective.MethodologyComprehensive search of global literature was conducted in Web of Science (WoS) database. For objective 1, metadata on co-authorship (country, organisation), and co-occurrence of keywords were exported and analysed using VOSviewer software. For objective 2–4, yield data for each treatment presented in the articles were extracted and yield increment calculated.ResultsThe most significant keywords: soil fertility, nutrient use efficiency, nitrogen use efficiency, integrated nutrient management, sustainability, and climate change adaptation revealed efforts to improve maize production, achieve food security, and protect the environment. A temperature rise of 1–4 °C decreased yield by 5–14% in warm areas and increased by < 5% in cold areas globally. Precipitation reduction decreased yield by 25–32%, while CO2 concentration increased and decreased yield by 2.4 to 7.3% and  9 to 14.6%, respectively. A promising fertilizer was a combination of urea + nitrapyrin with an average yield of 5.1 and 14.4 t ha−1 under non-irrigation and irrigation, respectively. Fertilization under climate change was projected to reduce yield in the average range of 10.5–18.3% by 2099.ConclusionThe results signified that sole fertilizer intensification is insufficient to attain sustainable maize yield. Therefore, there is need for integrated agronomic research that combines fertilizers and other technologies for enhancing maize yield, and consequently maize contribution to the attainment of global food security under climate change conditions.

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

13690_2023_1130_Article_IEq25.gif

13690_2023_1130_Article_IEq16.gif

Fig. 5

12302_2023_754_Article_IEq4.gif

40517_2023_252_Article_IEq133.gif