The Experts below are selected from a list of 67074 Experts worldwide ranked by ideXlab platform
Isaac T Rampedi - One of the best experts on this subject based on the ideXlab platform.
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Impact of Air Pollution on Maize Production in the Sasolburg Area, South Africa
Journal of Agricultural Science, 2013Co-Authors: Phokele Maponya, Isaac T RampediAbstract:Previous studies have shown that air pollution has an effect on Maize Production and can also influence yield. Since the pollution load at Sasolburg exceeds certain air quality standards, it is identified as a ‘hot spot’ and is therefore a perfect region to conduct studies regarding the impact of air pollution on Maize Production. The Northern Free State region is well known for its high Maize Production and residents of towns up to 50 km away from Sasolburg indicated that they can smell the fumes of the Sasolburg industries. This study included status of Maize Production over the past 5 years by visiting farmers every 25 km from Sasolburg, for 100 km. Thus, 4 sampling points of 25 km intervals have been visited. Farmers were asked to fill in questionnaires and provide information related to air pollution and Maize Production. This was done in three different directions from Sasolburg. It is expected that Maize yield near Sasolburg will be less than yield far from Sasolburg if pollution influence Maize Production. Average Maize Production by the Free State province as well as individual farmers, and other published and unpublished data which were used, concluded that Maize Production is in fact, influenced by the air pollution from Sasolburg, low income residents burning coal and other substances in the Sasolburg region. The research also indicated that new technology and techniques make it possible for farmers to maximize Maize yield and still, year by year, increase the Maize Production on their farms. South Africa is able to adapt and work around the air pollution problem, but will enter a downwards Maize Production curve when the original pollution problem is not addressed. It is therefore recommended that the problem of air pollution in the Sasolburg region be solved, rather than adapting to the circumstances with new agricultural technologies. This study has contributed to Maize Production, air pollution influences on Maize yield and farmer awareness in the Sasolburg region and nearby towns.
Phokele Maponya - One of the best experts on this subject based on the ideXlab platform.
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Impact of Air Pollution on Maize Production in the Sasolburg Area, South Africa
Journal of Agricultural Science, 2013Co-Authors: Phokele Maponya, Isaac T RampediAbstract:Previous studies have shown that air pollution has an effect on Maize Production and can also influence yield. Since the pollution load at Sasolburg exceeds certain air quality standards, it is identified as a ‘hot spot’ and is therefore a perfect region to conduct studies regarding the impact of air pollution on Maize Production. The Northern Free State region is well known for its high Maize Production and residents of towns up to 50 km away from Sasolburg indicated that they can smell the fumes of the Sasolburg industries. This study included status of Maize Production over the past 5 years by visiting farmers every 25 km from Sasolburg, for 100 km. Thus, 4 sampling points of 25 km intervals have been visited. Farmers were asked to fill in questionnaires and provide information related to air pollution and Maize Production. This was done in three different directions from Sasolburg. It is expected that Maize yield near Sasolburg will be less than yield far from Sasolburg if pollution influence Maize Production. Average Maize Production by the Free State province as well as individual farmers, and other published and unpublished data which were used, concluded that Maize Production is in fact, influenced by the air pollution from Sasolburg, low income residents burning coal and other substances in the Sasolburg region. The research also indicated that new technology and techniques make it possible for farmers to maximize Maize yield and still, year by year, increase the Maize Production on their farms. South Africa is able to adapt and work around the air pollution problem, but will enter a downwards Maize Production curve when the original pollution problem is not addressed. It is therefore recommended that the problem of air pollution in the Sasolburg region be solved, rather than adapting to the circumstances with new agricultural technologies. This study has contributed to Maize Production, air pollution influences on Maize yield and farmer awareness in the Sasolburg region and nearby towns.
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Impact of Air Pollution on Maize Production in the Sasolburg Area
2013Co-Authors: South Africa, Phokele MaponyaAbstract:Previous studies have shown that air pollution has an effect on Maize Production and can also influence yield. Since the pollution load at Sasolburg exceeds certain air quality standards, it is identified as a ‘hot spot’ and is therefore a perfect region to conduct studies regarding the impact of air pollution on Maize Production. The Northern Free State region is well known for its high Maize Production and residents of towns up to 50 km away from Sasolburg indicated that they can smell the fumes of the Sasolburg industries. This study included status of Maize Production over the past 5 years by visiting farmers every 25 km from Sasolburg, for 100 km. Thus, 4 sampling points of 25 km intervals have been visited. Farmers were asked to fill in questionnaires and provide information related to air pollution and Maize Production. This was done in three different directions from Sasolburg. It is expected that Maize yield near Sasolburg will be less than yield far from Sasolburg if pollution influence Maize Production. Average Maize Production by the Free State province as well as individual farmers, and other published and unpublished data which were used, concluded that Maize Production is in fact, influenced by the air pollution from Sasolburg, low income residents burning coal and other substances in the Sasolburg region. The research also indicated that new technology and techniques make it possible for farmers to maximize Maize yield and still, year by year, increase the Maize Production on their farms. South Africa is able to adapt and work around the air pollution problem, but will enter a downwards Maize Production curve when the original pollution problem is not addressed. It is therefore recommended that the problem of air pollution in the Sasolburg region be solved, rather than adapting to the circumstances with new agricultural technologies. This study has contributed to Maize Production, air pollution influences on Maize yield and farmer awareness in the Sasolburg region and nearby towns.
Christopher Bryant - One of the best experts on this subject based on the ideXlab platform.
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Maize Production Responsiveness to Land Use Change and Climate Trends in Cameroon
Sustainability, 2014Co-Authors: Terence Epule Epule, Christopher BryantAbstract:Most studies on the responsiveness of Maize Production to various variables have dwelled on the responsiveness of Maize Production to variations in precipitation or temperature. This study seeks to verify the response of Maize Production in Cameroon to both climate trends and land use change. Therefore, for the first time, our study presents findings on the relative influence of both climate and land use change on Maize Production in Cameroon. The data used in this analysis are essentially time series data spanning the period 1961–2006. The data on quantity of Maize produced, area of Maize harvested and number of Maize seeds planted was taken from (http://faostat.fao.org). The mean Maize growing season temperature and precipitation data were collected from the 0.5° × 0.5° gridded collaborative datasets of the UNEP and the School of Geography and Environment at Oxford University and from the global crop calendar dataset. The data were analyzed using the average rate of change, detrended simulations, the multiple linear regression technique, correlation coefficient and the coefficient of determination. The results show that Maize Production in Cameroon is more likely responsive to land use change (forest area change) than rainfall and temperature. However, for the climatic variables, Maize Production is more responsive to temperature variations than precipitation. In other words, the greater the land use change (forest area loss) the more likely the long run losses in the current Maize Production gains while rising temperatures were found to be more suitable for Maize Production. Even though the 1990s marked the period of recovering rainfall levels in most of the Sahel, large fluctuations were still recorded.
Xinping Chen - One of the best experts on this subject based on the ideXlab platform.
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Carbon footprint of Maize Production in tropical/subtropical region: a case study of Southwest China
Environmental science and pollution research international, 2021Co-Authors: Zhi Yao, Wushuai Zhang, Xiaozhong Wang, Dave Chadwick, Zhe Zhang, Xinping ChenAbstract:Maize Production is critical in tropical/subtropical regions, especially in developing countries where Maize is a staple food. However, its environmental costs remain unclear. Southwest China is a tropical/subtropical region with large-scale Maize Production in each of its sub-regions. In the present study, we used Southwest China as a case study to evaluate the greenhouse gas (GHG) emissions and carbon footprint (CF) of Maize Production during 1996-2015 using life cycle assessment to identify the driving factors behind the GHG emissions and CF and to propose potential mitigation strategies. The mean GHG emissions of Maize Production per year during 1996-2015 was 4132 kg CO2-eq·ha-1, and the CF during this period was 961 kg CO2-eq·Mg-1. The GHG emissions and CF in Southwest China were 2-4 times higher than those of other major Maize-producing regions worldwide. The GHG emissions and CF were both significantly correlated with the N surplus. The N surplus was also linearly correlated with annual precipitation, annual temperature and growing degree days, but not significantly related with soil pH. Scenario testing showed that the CF of Maize Production in Southwest China could be reduced by 41%, i.e. to 437 kg CO2-eq·Mg-1, by farmers adopting a comprehensive strategy including recommended fertiliser application rates, innovative fertilisers, and crop management to decrease GHG emissions and achieve the yield potential in the region. Integrated soil and crop management is essential for sustainable Maize Production in tropical/subtropical regions with complex and changeable ecological conditions, especially in developing countries where Maize is a staple food.
A I Arab - One of the best experts on this subject based on the ideXlab platform.
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Climate Change and Maize Production: Empirical Evidence from Kaduna State, Nigeria
Journal of Agricultural Extension, 2013Co-Authors: A. A. Ammani, A K Ja’afaru, J A Aliyu, A I ArabAbstract:An estimated 80% of the Maize crop suffers periodic yield reduction due to drought stress. Drought at flowering and grain filling period may cause losses of 40-90%. Predicated on the argument that climate change resulted from changes in climatic elements such as rainfall, this study aimed at investigating the relationship between rainfall, among other factors, and Maize crop Production in Kaduna state over a period of 15 years. Time series data on aggregate Maize Production, fertilizer use, total area under cultivation with the Maize crop and annual rainfall in Kaduna State for the period 1990-2005 were collected and analysed using multiple regression technique. Findings of the study showed that annual rainfall contributes significantly and positively to Maize Production in the study area inspite of climate change, indicating that climate change has not significantly altered the pattern of rainfall in the study area in such a way as to affect Maize Production negatively.
