Author(s): Yurica Nehanda Jeje, Mtaita Tuarira Abduel, Sebatian Chakeredza, Jefta Tabarira and Munashe Kurehwatira

Abstract: The study was conducted to determine the amount of chicken manure to be applied when growing lettuce (Lactuca sativa) variety commander. There were four treatments arranged in a Completely Randomized Block Design with three replicates. The four treatments were: treatment A (lettuce grown with 2 kg of chicken manure), treatment B (lettuce grown with 4 kg chicken manure), treatment C (lettuce grown with 6 kg chicken manure) and treatment D (lettuce grown with inorganic fertilizer). Data were collected on: leaf number, plant height and leaf area. The results showed that treatment C (6 kg manure) had the best effects compared to the rest of the treatments. Chicken manure therefore can replace inorganic fertilizers at six (6) kilograms per square meter in producing lettuce as it equally increases lettuce growth parameters.

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