Frequency Application of Vermicast on the Horticultural Performances of Leaf Type Lettuce (Lactuca sativa Linn.) with 19-19-19+Microelements as Supplementation

The study was laid out in Randomized Complete Block Design (RCBD) with four treatments and three replications. The treatments were as follow: T1 Untreated, T2 - Weekly Application, T3- Bi-weekly Application, and T4- Monthly Application. The data on percent ( %) mortality were transformed using square root of transformation before Analysis of Variance (ANOVA). Results: revealed not significant in terms of percent mortality in weekly and monthly application of the treatment having a mean of 1.76 % and 3.09 %. However, significant differences were observed in horticultural performances such as; plant height with a mean of 10.63 cm in weekly application and 6.40 cm for the untreated, leaf width with a mean of 10.80 cm for the weekly application and 6.03 for the untreated, fresh weight with a mean of 25.67 g for the weekly application and 6.83 g for the untreated, and yield with a mean of 1, 208.33 kg/ha for the weekly application and 327.08 kg/ha for the untreated, respectively. Results further exposed that profitability of lettuce in terms of Return of Production Cost (RPC) were; Bi-weekly with 91.01 %, Monthly with 68.20 %, Weekly with 25.34 % and Untreated (Control) with 16.69 %.