Economic analysis of yellow passion fruit production in southeastern Nigeria under different soil fertility management
Three experiments were conducted (2014-2018) to examine the economics of yellow passion fruit production under different soil fertility managements. In 2014, two genotypes (Conventional and KPF-4) were grown in the field and pot simultaneously, under varying rates of poultry manure (PM). In 2016, response of the two genotypes to combined application of organic and inorganic fertilizers were evaluated under field condition. In 2014, total variable cost significantly (P<0.05) increased with increase in PM rates in both field and pot studies. The highest net returns and returns per naira invested were obtained with 20 t/ha PM application. In 2016, combined application of 10 t/ha PM+200 kg/ha NPK gave gross return, net return and return per naira invested. Growing the vines without fertilizer application significantly gave least net returns without profit. Consequently, applying 20 t/ha PM was adjudged the most profitable for yellow passion fruit production in the study area, hence was recommended particularly when organic farming is intended. However, if farmers must use inorganic fertilizer, combined application of 10 t/ha PM+200 kg/ha NPK will be most profitable.