Effects of Integrated Decomposed Cattle Manure and Inorganic Fertilizer on Yield and Yield Components of Food Barley (<i>Hordeum vulgare</i> L.) in West Region of Ethiopia

Food Barley (Hordeum vulgare L.) is important major cereal crop which cultivated widely over the word. It is very important and categorized as food security crop in highlands of Ethiopian. This research was carried out in west region of Ethiopia Arjo, Gedo and Shambo in 2021 and 2022 cropping season with the objective of determine optimum integrated inorganic fertilizer and cattle manure for food barley production. The experiment was arranged with five level of NPS (0,25%, 50%, 75%, and 100%) of recommended combined with four level of decomposed cattle manure 0, 3tone/hectare, 6tone/ha and 9tone/a using RCBD in factorial arrangement and replicated three times. Analysis of variance showed grain yield, 1000sw, biological yield and plant height significantly affected by integrated fertilizer. Highest grain yield 2665kg/ha was harvested from the plot received 100% and 3tone/ha. Harvest index, seed per spike, spike length and number of tillers per spike were not affected by the treatment. The partial budget analysis revealed two treatments integrated 100% in organic fertilizer and 3tone/ha cattle manure and 9tone/ha cattle manure and 50% inorganic fertilizer which their MRR 605 and 1482 respectively were economically feasible. Therefore, the farmers and investors are advised to use these selected treatments for food barley production and soil fertility improvement.