N-RECOVERY
Tremendous profits can be realized by avoiding N-loss from manure. Dairy manure has potential to provide 52 lbs-N per 1,000 gallons. With only 35% N-Recovery, 18 lbs of N per 1000 gals are available immediately upon application. That amounts to 2x’s the 8.4 lbs-N from traditional practice, when N becomes available slowly, month by month.
Value of Dairy Manure
1,400 lb Cow Milking will produce
150 lbs of manure and urine per day
$0.50 N-Price per lb (elemental)
$0.47 P-Price per lb, less 18% N included
$0.54 K-Price per lb
| Manure Contains: | lbs/cow/day | price/lb | $/cow/day | $/cows/yr |
| Nitrogen | $0.99 | $0.500 | $0.495 | $180.64 |
| Phosphorous | $0.17 | $0.423 | $0.072 | $26.24 |
| Potassium | $0.23 | $0.540 | $0.124 | $45.33 |
| Total NPK | $0.691 | $252.21 | ||
| PLUS Organic matter, humus and trace minerals | $0.691 | $252.21 | ||
| Fertilizer value from one lactating cow | $1.38 | $504.42 | ||
| Potential N-Value from Dairy Herd: # = 100 | $18,064 | |||
| Income Available from 35% N-Recovery | ||||
| 100 cows 70 Acres (N=180 lbs/acre) | ||||
| Est. amount | Recovery | Practice | Profit | |
| First year N | 16% | $6,322 | $2,890 | $3,432 |
| Buy commercial-N@ $/lb | $0.50 | $0 | -$3,432 | $3,432 |
| Spray vs Knife @ 5/acre1 | $40 | -$1,050 | -53,850 | $2,800 |
| Appl. Timing – bu/acre2 | $20 | $4,886 | $0 | $4,886 |
| Est. $/bu corn price | $3.49 | |||
| N-Recovery – Income per Year | $14,550 | |||
| Additional Income – depending on practice | ||||
| Compaction – bu/acre3 | $ 10 | $2,443 | $0 | $2,443 |
| Odor/Enviro-Risk-$/cow | $100 | -$1,000 | -$10,000 | $9,000 |
| 1. Spray applied @ $15/acre • Knife @ $55/acre = $40/acre savings from spraying.
2. Successful Farming reports 20-40 more bu of corn per acre from N applied when crops need it most. 3. Research reports 10% crop yield lost to compaction when spreading manure by tractor. 4. Estimate annual Insurance value of farmer’s risk from odor lawsuits and environmental penalties. |
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