Effect of Meteorological Factors on Maize Yield in Comoros

DOI: https://doi.org/10.62517/jlsa.202407211

Author(s)

Soule Bacar Islam1,2,3,4,5, Wen Yu1,2,3,4,*, Wei Chen1,2,3,4, Nyamaa Nyamsuren6, Lyankhua Bayasgalankhuu7, Thakfiyou Achirafi8, Jianzheng Li1,2,3,4, Baohua Liu1,2,3,4, Longhua Zhao1,2,3,4, Ganqiong Li1,2,3,4*, Yu Wang1,2,3,4, Han Zhou1,2,3,4, Wencheng Din

Affiliation(s)

1Agricultural Information Institute, Chinese Academy of Agricultural Sciences, Beijing, China 2Key Laboratory of Agricultural Information Service Technology, Ministry of Agriculture and Rural Affairs, Beijing, China 3Key Laboratory of Intelligent Agricultural Early Warning Technology and System, Chinese Academy of Agricultural Sciences, Beijing, China 4Beijing Engineering Research Center for Agricultural Monitoring and Early Warning, Beijing, China 5Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China 6School of Economics and Business, Mongolian University of Life Sciences, Mongolia 7Department Vegetation Ecology and Plant Economic, Botanic Garden and Research Institute, Mongolian Academy of Science, Ulaanbaatar, Mongolia 8Diboini Hamalengo Rural Economic Development Center Undp in The Union of Comoros, Moroni, Comoros 9Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture and Rural Affairs, China. 10State Key Laboratory of Efficient Utilization of Arid and Semi-Arid Arable Land in Northern China (Institute of Agricultural Resources and Regional Planning), Chinese Academy of Agricultural Sciences, Beijing, China. 11Department of Agricultural Economics and Extension Services, Ibrahim Badamasi Babangida University (IBBU), Niger State, Nigeria *Corresponding Author.

Abstract

Understanding the effects of climatic factors on maize yield will benefit tactical decisions for future agricultural forecasting. In this study, the relationship between maize yield and meteorological factors has been estimated on the basis of daily meteorological data during the growing season and maize yield observation data from 1970 to 2022 on the island of Nguazidja. The specific maize growth stages most sensitive to meteorological factors were divided into six stages: emergence, jointing, tasseling, flowering, filling and harvesting. First, a simple regression is carried out with the tendency model. Yield and years are included. We then analysed the effect of meteorological factors on each stage of maize growth using the orthogonal Chebyshev polynomial regression. It was found that rainfall has a generally positive influence on yield growth. Temperature has a significant negative effect on yield during the emergence and filling stages. The key point is that meteorological factors have an effect on maize yield throughout the growth season. The degree of impact of each meteorological factor during the growing season is not the same. The first step is to understand that maize needs higher temperatures, especially during the emergence period. On the other hand, rainfall sometimes provides more water than is needed. The aim of this research is to provide clear information on the impact of climatic factors on maize yields. This is a study that has not yet been carried out in the country. And the results are important for forecasting maize yields in the Comoros.

Keywords

Maize Yield; Meteorological Fators; Orthogonal Polynomials and Interal Regression; Comoros

References

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