🌾 Wisconsin Fast Facts
Agriculture quick reference
⚖️ Standard Bushel Weights
lb/bu🌽 Corn56
🫘 Soybeans60
🌾 Wheat60
🌾 Oats32
🌾 Barley48
🌾 Rye56
🌻 Sunflower28
🥬 Canola50
🌱 Flax56
🌿 Millet50
🫛 Dry Beans60
🌾 Sorghum56
🌾 Nutrient Removal Rates
lb/bu| Crop | N | P₂O₅ | K₂O | S |
|---|---|---|---|---|
| 🌽 Corn (grain) | 0.67 | 0.37 | 0.27 | 0.08 |
| 🌽 Corn Silage (/ton) | 7.7 | 3.0 | 9.0 | 1.0 |
| 🫘 Soybeans | 3.30 | 0.80 | 1.40 | 0.18 |
| 🌾 Wheat | 1.25 | 0.50 | 0.30 | 0.10 |
| 🌾 Oats | 0.65 | 0.25 | 0.20 | 0.08 |
| 🌿 Alfalfa (/ton) | 50 | 12 | 50 | 5.5 |
💡 Quick Math: 200 bu/ac corn removes ~134 lb N, 74 lb P₂O₅, 54 lb K₂O
🧮 Quick Calculators
Interactive🌾 Nutrient Removal
134N - 74P - 54K
lb/ac removed
💵 Fertilizer Cost/Acre
$65.00
Cost per Acre
🌱 Seeding Rate
34,848
Seeds per Acre
⚖️ Bushel ↔ Weight
56,000 lb
= 28.0 tons
🏗️ Bin Capacity
13,399 bu
375 tons corn
💰 Break-Even Price
$4.25
Break-Even $/bu
🌽 Nitrogen Rate Guidelines
WI
Corn after Soy
140-160
lb N/ac
Corn after Corn
180-200
lb N/ac
Soybean Credit
40-50
lb N/ac
Alfalfa Credit
100-150
lb N/ac
⚠️ Adjust for: Manure, soil OM, irrigation, yield goal. Contact your CCA for field-specific rates.
🌱 Recommended Seeding Rates
| Crop | Seeds/Acre | Lb/Acre | Notes |
|---|---|---|---|
| 🌽 Corn | 32,000-36,000 | -- | Higher for drought-prone |
| 🫘 Soybeans | 120,000-140,000 | 50-60 | 15" or drill: 140k+ |
| 🌾 Wheat | 1.2-1.6M | 90-120 | Higher for late plant |
| 🌿 Alfalfa | -- | 15-20 | Pure stand |
🏗️ Grain Storage Reference
Bin Capacity Formula
Round BinD² × H × 0.628
Flat StorageL × W × D × 0.8
Safe Storage Moisture
Corn (1 yr)14%
Corn (long)13%
Soybeans13%
Shrink Factor
Corn 20→15%5.88%
Per 1% moisture~1.18%
🧪 Common Fertilizer Analysis
Nitrogen Sources
Anhydrous82-0-0
UAN 28%28-0-0
Urea46-0-0
AMS21-0-0-24S
Phosphorus Sources
DAP18-46-0
MAP11-52-0
TSP0-46-0
Potassium Sources
Potash0-0-60
K-Mag0-0-22-11Mg
💰 Cost/lb N: Price per ton ÷ (analysis × 20). Ex: Urea $600/ton = $0.65/lb N
🔄 Unit Conversions
Area
1 acre43,560 ft²
1 acre0.405 ha
1 section640 acres
Weight
1 ton2,000 lb
1 metric ton2,205 lb
1 kg2.205 lb
Volume
1 bushel1.244 ft³
1 gallon8.34 lb H₂O
Speed
1 mph88 ft/min
Ac/hrmph×W÷8.25
Nutrients
P₂O₅ → P× 0.44
K₂O → K× 0.83
💩 Manure Nutrient Values
lb/1000 gal or /ton| Source | N | P₂O₅ | K₂O | Unit |
|---|---|---|---|---|
| 🐄 Dairy (liquid) | 25-30 | 10-15 | 20-25 | /1000 gal |
| 🐄 Dairy (solid) | 10-12 | 4-6 | 8-10 | /ton |
| 🐷 Swine (liquid) | 40-50 | 25-35 | 20-30 | /1000 gal |
| 🐔 Poultry litter | 60-70 | 55-65 | 40-50 | /ton |
⚠️ First-Year N: Inject = 50-60% • Surface = 25-35%. Always sample manure.
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