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A. MANURE WASTE LOADING <br /> ANIMAL AVAILABLE N-LBS/TON DRY WT. AMOUNT R.M.PRODUCED EVERY 4 MOS.(TONS) TOTAL (I.&S) <br /> BOARS 37 1.8 F1'/DAY X 80 DAYS=144FP X 30 LBS/FI'=2.1 TONS 80 LBS <br /> SOWS 37 1.3 FP/DAY X 80 DAYS=104F1'X 30 LBS/FI'=1.6 TONS 58 LBS <br /> MARKET 30 14.4 FP/DAY X 80 DAYS-1152F1' X 30LBS/F1'= 17.3 TONS 518 LBS <br /> _ SHEEP 17 6.2 FP/DAY X 80 DAYS=496FP X 30 LBS/FV-7.4 TONS 127 LBS <br /> GOATS 17 4.2 FINDAY X 80 DAYS=336FT'X 30 LBS/FT'=5.0 TONS 86 LBS <br /> CALFS 16 56.3FP/DAY X 80 DAYS=4504F1'X 30 LBS/F1'=68 TONS 1081 LBS <br /> TOTALS 1950 LBS N <br /> An approximate 30% nitrogen loss will occur over the length of manure storage, for a plant <br /> available nitrogen weight 1365 lbs. Sudangrass requires approximately 325 lbs N per acre: <br /> 325 lbs/ac x 7.0 ac = 2275 lbs N needed for each crop. Therefore, the wastewater effluent can <br /> supply no greater than 2275-1365 = 910 lbs N over 7.0 ac (130 units) for each crop, 3X per yr. <br /> B. SEPTIC WASTEWATER LOADING <br /> Septic effluent nitrogen concentration(avg)=40 mg N/L <br /> _ Septic wastewater flows per day=250 gallons/day = 948 L/day x 40 mg N/L = 0.0379 kg N/day <br /> 0.0379 kg N/day x 260 working days/yr= 10 kg N/yr or 22 lbs N/yr. <br /> �. 8 <br /> Vaffey Ag Ppearch <br />