Impact of climate variability on grain yields of spring and summer maize

Wang, Tianxue; Li, Na; Li, Yang; Lin, Haixia; Yao, Ning; Chen, Xinguo; Liu, De Li; Yu, Qiang; Feng, Hao

doi:10.1016/j.compag.2022.107101

Cited by 22 publications

(10 citation statements)

References 59 publications

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“…Few countries displayed strong fluctuations (e.g., Guinea-Bissau, the CAR, Mauritania, Eritrea, Somalia, and Gambia). The consistently higher maize production across the EQCs corroborates other studies that support maize as one of the vital food crops in this region [20,25] and other global land areas [53][54][55].…”

Section: Descriptive Statistics Of Annual Maize and Climatesupporting

confidence: 87%

The Relationship between Changes in Hydro-Climate Factors and Maize Crop Production in the Equatorial African Region from 1980 to 2021

Nooni,

Ogou,

Hagan

et al. 2024

Atmosphere

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Agricultural production across the African continent is subjected to various effects of climate variability. One of the main staple foods in Sub-Saharan Africa is maize. However, limited scientific research has recently focused on understanding the possible effects of hydro-climatic variability on maize production. The aim of the present work was to contribute to policy and climate adaptation, thus reducing the vulnerability of maize production to climate change over Equatorial Africa. This study firstly examined long-term trends of precipitation (PRE), soil moisture (SM), actual evapotranspiration (E), and potential evapotranspiration (Ep), as well as surface air temperatures, including the minimum (TMIN) and maximum (TMAX). Secondly, the relationship between maize production and these climate variables was quantified for 18 Equatorial African countries (EQCs) over 1980−2021. To assess the linear trends, Mann–Kendall and Sen’s slope tests were used to quantify the magnitude of the hydro-climatic variable trends at the 5% significance level, and Pearson’s correlation coefficient was used to evaluate the relation of these climate parameters with the maize production. The annual mean PRE declined at 0.03 mm day−110a−1. Other climate variables increased at different rates: SM at 0.02 mmday−110a−1, E at 0.03 mm day−110a−1, Ep at 0.02 mm day−1 10a−1, TMIN and TMAX at 0.01 °C day−110a−1. A regional analysis revealed heterogeneous significant wet–dry and warm–cool trends over the EQCs. While, spatially, dry and warm climates were observed in the central to eastern areas, wet and warm conditions dominated the western regions. Generally, the correlations of maize production with the E, Ep, TMAX, and TMIN were strong (r > 0.7) and positive, while moderate (r > 0.45) correlations of maize production with PRE and SM were obvious. These country-wide analyses highlight the significance of climate change policies and offer a scientific basis for designing tailored adaptation strategies in rainfed agricultural regions.

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Section: Descriptive Statistics Of Annual Maize and Climatesupporting

confidence: 87%

The Relationship between Changes in Hydro-Climate Factors and Maize Crop Production in the Equatorial African Region from 1980 to 2021

Nooni,

Ogou,

Hagan

et al. 2024

Atmosphere

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“…This is because organic fertilizer can not only reduce soil bulk density but also increase soil porosity, which significantly improves plant nutrient absorption 83 . In addition, the combined application of organic fertilizer and inorganic fertilizer can effectively coordinate the rapid release of inorganic nutrients and the slow supply of organic nutrients in the soil to meet the nutrient demand for crop growth and thus improve crop yield 84 , 85 .Moreover, according to the results in Fig. 8 , maize yield is more sensitive to temperature, and shows a decreasing trend with increasing temperature.…”

Section: Discussionmentioning

confidence: 99%

Effects of different fertilization practices on maize yield, soil nutrients, soil moisture, and water use efficiency in northern China based on a meta-analysis

Jiang,

Dong,

Bian

et al. 2024

Sci Rep

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The application of fertilizer to ensure the steady improvement of crop yield has become the main means of agricultural production. However, it remains to be determined whether fertilization practices with different combinations of nitrogen (N), phosphorus (P), potassium (K), and organic (O) fertilizers play a positive role in the sustainability of maize yield and the soil in which it is grown. Therefore,this meta-analysis extracted 2663 data points from 76 studies to systematically analyze and explore the effects of different fertilization measures on maize yield, soil nutrients, water content and water use efficiency (WUE) in northern China. Articles addressing this topic showed that fertilization effectively increased the soil nutrient content and maize yield. The soil organic matter (SOM) increased by 2.36 (N)–55.38% (NPO), total nitrogen content increased by 6.10 (N)–56.39% (NPO), available phosphorus content increased by 17.12 (N)–474.74% (NPO), and available potassium content changed by − 2.90 (NP)–64.40% (NPO). Soil moisture increased by 3.59% under a single organic fertilizer application and decreased by 4.27–13.40% under the other treatments. Compared with no fertilization, the yield increase of fertilized maize reached 11.65–220.42%. NP, NPK and NPKO contributed the most to increased yield in lithological, black and fluvo-aquic soils, respectively. The effects of different fertilization practices on maize yield varied in response to the same meteorological factors. The WUE increased from 9.51 to 160.72%. In conclusion, rational fertilization can improve the soil nutrient content and increase maize yield. The combined application of chemical and organic fertilizer showed the greatest increase in yield and WUE. Organic fertilizer application alone increased soil moisture. Our results provide a theoretical basis for fertilizer application and for improving the soil structure for maize cultivation in northern China.

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“…year-to-year changes), which reflects the change in a variable over two consecutive years. The detrending method can minimize the confounding influences of long-term changes in technology and management (Prabnakorn et al 2018, Wang et al 2022a. Further, the detrended data is standardized to allow comparison of the influences of variables with different units on crop yields.…”

Section: Data Preprocessingmentioning

confidence: 99%

Quantifying the indirect effects of different air pollutants on crop yields in North China Plain

Lu,

Leng,

2024

Environ. Res. Lett.

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High concentrations of air pollutants could affect crop yield directly via influencing crop physiology and indirectly via regulating climate conditions. How multiple air pollutants affect crop yields directly and indirectly remains elusive in the North China Plain (NCP), which is the hotspot of air pollution and crop production. Here, we construct data-driven models to quantify the indirect effects of four major air pollutants on the yields of winter wheat and summer maize through modulating climate variations in the NCP during 2005-2020. Our results show that wheat has a greater negative sensitivity to absorbing aerosol optical thickness (AAOD), ozone concentration (O3), sulfur dioxide concentration (SO2) and nitrogen dioxide concentration (NO2) than maize. The indirect effects of AAOD, O3 and SO2 in November and O3 in April control wheat yield variation, while the indirect effects of AAOD and O3 in June, O3 and SO2 in July, O3 and NO2 in August, and O3 in September dominate maize yield variation. Our results emphasize the indirect effects of air pollutants on crop yield via regulating climate variations, which has great implications for improving our understanding of air pollution-climate-crop interactions and guiding targeted adaptation and mitigation efforts.

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Impact of climate variability on grain yields of spring and summer maize

Cited by 22 publications

References 59 publications

The Relationship between Changes in Hydro-Climate Factors and Maize Crop Production in the Equatorial African Region from 1980 to 2021

The Relationship between Changes in Hydro-Climate Factors and Maize Crop Production in the Equatorial African Region from 1980 to 2021

Effects of different fertilization practices on maize yield, soil nutrients, soil moisture, and water use efficiency in northern China based on a meta-analysis

Quantifying the indirect effects of different air pollutants on crop yields in North China Plain

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