Impact of climate on the yield of major tuber crops in Kwara State, Nigeria

Abstract

Rain fall, maximum temperature, minimum temperature, evaporation, relative humidity, sunshine hours, soil temperature data were obtained from the National Bureau of Statistics (NBS) for a decade (2002 - 2011), while crop yield data for the same period were sourced from Kwara State Agricultural and Development Project (KWADP). Both climatic and crop yield data were analysed using correlation analytical techniques, multiple regression and trend analysis in order to evaluate the impact of climate on the yield of the major tuber crops in Kwara State, Nigeria viz: cassava, yam, and sweet potato. The result obtained shows that the impact of climate on yield is significant (p<0.05) for yam and cassava, however, insignificant (p<0.05) for sweet potato. The implication of this is that climate has a strong linear correlation with yam and cassava within the years under review. Tuber crops yield in the study area can be improved upon by supplementing rain-fed cultivation with irrigation and application of modern agricultural techniques and operations by the farmers. [ABSTRACT FROM AUTHOR] Copyright of Global Journal of Agricultural Sciences is the property of Bachudo Science Company Limited and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)