Value of Manure as a Fertilizer Ray Massey Economist.

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Presentation transcript:

Value of Manure as a Fertilizer Ray Massey Economist

When 4 quarters ≠ $1 Value of Manure is NOT the sum of its individual nutrient values

Not all nutrients are created equal N, P and K from manure does not have the same value as N, P and K from commercial fertilizer

Supply and Demand Still Rules

Manure Value Determinants: –Supply of manure supplied benefits –Demand for manure supplied benefits Characteristics that affect yield are valued.

Manure Characteristics that Affect Yield Manure Nutrient Content Individual crop needs Cropping System Soil Fertility and Productivity Nutrient Limit Rule Application Method (Nutrient Availability)

Form Affects Value Not all Carbon is Equally Priced

Not all NaCl is equally priced –Table salt: 2.1¢ per ounce Popcorn Salt: 2.6¢ per ounce –Canning Salt: 5.6¢ per ounce

Not all N is Equally Priced

Manure Value ($/1000 gallons)

Farmers Fertilizer Acres!

Nutrient Concentration impact on Manure Value The limiting nutrient is completely valued. Any excess nutrients are partially valued.

Corn: N Limit, Surface Applied

Corn: N Limit, Injected

Corn: P Limit, Injected

Corn-Soybean: N Limit, Injected Applied to corn

Impact of Nutrient Limit, Crop and Application Method CropLimitApplication Method $/acreAcresTotal Value CornNSurface$ $12,100 CornNInject$ $17,142 CornPInject$ $28,221 Corn-SBNInject$ $23,930

Take Home Message Manure Value is affected by –Nutrient Content –Cropping System –Nutrient Limit –Application Method Manure Price is determined by SUPPLY AND DEMAND

Manure Value Spreadsheet agebb.missouri.edu/commag/crops/ massey/downloads/index.htm

Value of Manure as a Fertilizer Ray Massey Economist