Effects of Different Sources of Fertilizer Application on Species Composition, Herbage Yield, Nutritional Quality and Soil Fertility of Degraded Grazing Lands in Central Rift Valley of Ethiop

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Abstract:

The study was conducted in Arsi Negelle and Adami Tulu Jido Kombolcha (ATJK) districts from July to the end of September 2017, with the objectives to determine the effect of applying different sources of fertilizer on species composition, herbage yield and chemical composition of natural pastures and soil fertility status of pasture land. The experiment involved five treatments, i.e., (T1) control (no fertilizer application), (T2), a combination of urea and DAP (50 + 100 kg ha-1 respectively), (T3), cattle manure (7.5 t ha-1), (T4), wood ash (3 t ha-1) and (T5), lime (2 t ha-1). Soil samples were collected from 20cm depth before and after treatment were analyzed at Oromia Water Works Design and Supervision Enterprise. Forage samples were harvested from 50cm x 50cm at 50% of flowering stage were analyzed at ILRI analytic laboratory.. The soil textural and chemical properties of the study sites were significantly different (P

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Effects of Different Sources of Fertilizer Application on Species Composition, Herbage Yield, Nutritional Quality and Soil Fertility of Degraded Grazing Lands in Central Rift Valley of Ethiop

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