“Manure is a valuable resource to the farm as it is rich in nutrients such as nitrogen and phosphorus,” Jones said. nitrogen from manure applied to a legume crop, or the phosphorus and/or potassium applied to a field with a soil test higher than 60 mg/L (ppm) or 250 mg/L (ppm) for P and K, respectively. lb/cow Annual manure N, lb/mature cow Annual manure P, lb P2O5/mature cow N:P 2O5 20,000 361 63 2.5 25,000 382 63 2.7 After 30% N loss by NH 3 volatilization 20,000 253 63 1.8 25,000 267 63 1.9 … Any nutrient that is undersupplied by a manure application could incur a subsequent fertilizer application cost which would, in effect, lower the net value of the manure. Cow manure contains most of the macro and micronutrients required for plant growth, particularly nitrogen (the most important). “Farms will use manure as a natural fertilizer to enhance plant growth.” At issue is the manure… Manure As a Plant Fertilizer. Some nitrogen is available in subsequent years; the amount is higher for solid manure than for liquid . Because manure is not a balanced fertilizer, some plant nutrient needs may be met while other nutrients may be under- or over-supplied. manure… Overall though, this is a fairly balanced fertilizer, with the … In a study by Enujeke (2013) using organic manure and inorganic fertilizer in Asaba, Delta State, results indicated that maize plants treated with inorganic fertilizer NPK 20:10:10 at the rate of 450kg/ha gave the highest number of grains/cob (506.0) followed by plants that received poultry manure …

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