Abstract
Crop diversification is a potential strategy that farmers can employ to address household food insecurity and low farm incomes. Smallholder coffee farmers face low and insufficient levels of crop diversification in Kirinyaga East and Central Sub-Counties, Kirinyaga County, Kenya. This study examines those factors that influence household decisions to diversify crops and further attempts to analyze the factors that influence the extent to which diversification takes place among smallholder coffee farmers. The study was guided by utility theory and used a descriptive survey design. Structured questionnaires were used to collect the survey data and a sample size of 408 smallholder farmers was chosen using multistage sampling procedure. The crop diversification index was 0.390 on average. Cragg's double-hurdle model findings at the first stage of the model revealed that there was a positive and significant relationship at p < 0.05 between access to extension services (6.5%) and land size (8.8%) on the probability of the farmer participating in crop diversification. The extent of crop diversification was positively and significantly associated with land size (6.7%), where (p < 0.05), while gender (5.3%) had a negative influence. Farmers should be encouraged to diversify their crops to maximize land productivity through increased crop yields. Finally, the findings suggest that the government should allocate resources to supplement existing extension programs and policies that improve skills and knowledge of farmers concerning crop diversification.