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t <br /> Lbs of flushed nitrogen collected in settling pond <br /> (WET COLUMN X 20%) 1661 x .20 = 332 lbs. per day <br /> Lbs of nitrogen reaching anaerobic lagoon <br /> (WET COLUMN X 80%) 1661 x .80 = 1329 lbs. per day <br /> Yearly nitrogen production: <br /> I <br /> Total nitrogen in solids per year from corrals: <br /> (DRY COLUMN X 365) (415+135) x 365 = 200,652 lbs. N per year <br /> Total nitrogen in solids per year in aerobic settling <br /> `} pond: 332 x 365 = 121,228 lbs: N per year <br /> Total nitrogen in liquids at anaerobic lagoon: 1,329 x 365 = 484,912 lbs. N per year <br /> J Nitrogen retention loss factor calculation from storage: <br /> Nitrogen retained from storage in dry lot corrals: 25-70% Use 25%5 <br /> Nitrogen retained from storage in aerobic settling pond: 35-45% Use 40% <br /> Nitrogen retained from storage in anaerobic lagoons: 20-35% Use 25%5 <br /> • Pounds (lbs) of nitrogen (N) per year available after losses in storage: <br /> Liquids: <br /> N on 484 912 x .25 = 121 <br /> Nin liquids from anaerobic Jago ,228 lbs. <br /> Total nitrogen in liquids after losses. 121,228 lbs. <br /> r <br /> N in solids from corrals: 200,652 x .25 = 50,163 lbs. <br /> f N in solids from aerobic setting pond: 121,228 x .40 = 48,491 lbs. <br /> A Total nitrogen in solids after losses: 98,654 lbs. <br /> Total nitrogen after losses available to crops from both solids and liquids: <br /> 239,882 lbs. <br /> I Nitrogen requirements by 60 .57 acres of fanned properties during the summer season <br /> and 641.97 acres during the winter season: <br /> Rotating crops at 603.57 summer! 603.57 winter acres, all taking solids and liquids.. <br /> See Page 47 for References and Bibliography <br /> ©Western Dairy Design Associates,Inc.2003 <br /> Page 22 <br /> 1 <br />