Assessment of Nutrient Contents of Farmers' Used Composts for Crop Production in the North Shewa, South West Shewa, and West Shewa Zones, Oromia

Abstract

Composting is one of the most effective mulches and soil additives available in nature. The usefulness of this rich, dark, earthy material in enhancing the soil and producing a healthy environment for plants is well known among gardeners. The public's interest in learning how to manufacture and use compost is growing as the waste disposal situation worsens. In the years 2012-2013, the nutrient content and quality of currently used composts for agricultural purposes were assessed in various districts of North Shewa (Kuyu and G/Jarso), South West Shewa (Woliso and Becho), and Special zone of Oromia around Finfine (Akaki and Welmera) Zones, Oromia region to assess the nutrient contents of currently used composts prepared from diversified material sources for agricultural purposes, composting practices, and composting The majority of farmers see collected FYM or home garbage as compost. The compost samples were taken without regard for the material used to make them. Compost was made by some farmers from cow manure and household garbage. Even if some farmers make compost from ash, cow dung, and green leaf, they do not adequately combine and wet it. The information on the compost samples was gathered via questionnaires. Following consultation with the agricultural development office, Fitche Soil Research Center collected 116 compost samples from eight districts and analyzed them for EC, pH, N, P, K, Ca, Mg, organic matter, C:N ratio, micronutrients, and CEC using the laboratory protocol described for each parameter. Compost generated from varied materials has a different nutritious value. 6. and k 2.8 to 70.97 are the pH of compost collected from various districts. Accordingly, based on all parameters required for quality and nutrient content analysis, the nutrient content and quality of farmers' used composts for crop production did not meet the standard. This could be due to the raw materials used and their proportions, the standard composting process, and storage conditions that did not adhere to the guidelines provided. To determine the appropriate compost maturity time, a scientific method of compost application should be followed, and it is better to train farmers on how to prepare compost so as to improve land productivity and crop yield.