Thresholding Climate Impact as a Panacea in Precision Agriculture Among Maize and Sorghum Farmers of Guinea-Savanna, Nigeria

(1) Background: Amidst the unending global concern over climate change and its detrimental impacts on agricultural productivity, this study investigated climatic conditions maximum yield of selected arable crops, and the causes of variability. (2) Methods: Using cross-sectional and time series data, the Just-Pope Production Model was employed to analyse yield responses to various inputs and climatic factors. (3) Results: The model revealed that fertilizer, sorghum seed, family labour share in farming, and farm size increased the sorghum yield variance, while seed and fertilizer increased maize yield risk. Positive growth rates were observed for maize (3.8%) and sorghum (2.4%). Temperature rise increased the yield risk of both crops (moderate for maize). Conversely, the Growing Degree Day (GDD) reduced yield risk, inducing yield increases.