EFFECTS OF WEATHER VARIABILITY ON YAM PRODUCTIVITY AMONG FARMERS IN DELTA STATE, NIGERIA
DOI:
https://doi.org/10.33003/jaat.2024.1003.19Keywords:
Weather variability,, Yam productivity,, Temperature,, Rainfall.Abstract
This study investigates the effects of weather variability on yam productivity among farmers in Delta State, Nigeria. The objectives of this study were to: examine the weather trend from 2019 to 2023; determine the effect of temperature on yam productivity in the study area and determine the effect of rainfall on yam productivity in the study. All data were gathered through the use of secondary data on weather variability and yam productivity for five years (2019 to 2023) from publications of the Nigerian Institute of Meteorology (NIMET) and Ministry of Agriculture Asaba, Delta State, Nigeria. Data were analyzed using trend analysis and Pearson Product Moment Correlation. Results revealed that the trend of the rainfall is that of increase within the five-year period. From 2,450 mm in 2019, the rainfall increased to 2,893 mm in 2023. Temperature in 2019 was 25.8°C, and increased up to 26.5°C in 2023. The rising temperature and increasing rainfall threatens agricultural productivity in the State. Correlation result on effects of temperature on yam productivity shows statistically significant negative correlation between temperature and yam productivity, with a Pearson correlation coefficient of -0.587 and a p-value of 0.002. This indicates that as temperature rises, yam productivity decreases. Correlation result on effects of rainfall on yam productivity shows a statistically significant negative correlation, with a Pearson correlation coefficient of -0.685 and a p-value of 0.002. This indicates that as rainfall increases, yam productivity decrease. Weather variability were as a result of climate change
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