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¶ Table 1. Calculation Factors |
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| Crop Name | Field Unit | N_crop | Bulk Density Factor | |
| Surface | Subsoil | |||
| Amarath, grain | lb. | 0.05 | 0.3 | 0.3 |
| Barley, feed grain | bu. | 1.8 | 0.3 | 0.15 |
| Barley, malting | bu. | 1.35 | 0.3 | 0.3 |
| Buckwheat | bu. | 2.2 | 0.3 | 0.3 |
| Camelina | lb. | 0.05 | 0.3 | 0.3 |
| Canola, grain (bu.) | bu. | 2.75 | 0.3 | 0.15 |
| Canola, grain (lbs.) | lb. | 0.055 | 0.3 | 0.3 |
| Corn, grain (bu.) | bu. | 1.25 | 0.3 | 0.3 |
| Corn, grain (lbs.) | lb. | 0.0223 | 0.3 | 0.3 |
| Corn, seed prod., grain | bu. | 1.25 | 0.3 | 0.3 |
| Cotton, lint (bales) | bales | 55 | 0.3 | 0.3 |
| Cotton, lint (lbs.) | lb. | 0.11 | 0.3 | 0.3 |
| Cowpeas | lb. | 0.015 | 0.3 | 0.15 |
| Dry edible beans | lb. | 0.04 | 0.3 | 0.3 |
| Durum wheat | tons | 71.5 | 0.3 | 0.3 |
| Durum wheat, North Plains | bu. | 2.75 | 0.3 | 0.3 |
| Flax, seeds | bu. | 3 | 0.3 | 0.3 |
| Forage peas, grain | cwt. | 1 | 0.3 | 0.3 |
| Grain sorghum (bu.) | bu. | 1.2 | 0.3 | 0.15 |
| Grain sorghum (lbs.) | lb. | 0.0214 | 0.3 | 0.3 |
| Guar | lb. | 0.025 | 0.3 | 0.15 |
| Hemp, fiber prod. | tons | 27 | 0.3 | 0.15 |
| Hemp, seed prod. | lb. | 0.12 | 0.3 | 0.15 |
| Hops | bales | 17 | 0.3 | 0.3 |
| Lentils | cwt | 1.4 | 0.3 | 0.3 |
| Lupins, seeds | lb. | 0.027 | 0.3 | 0.15 |
| Millet, grain (bu.) | bu. | 1.35 | 0.3 | 0.3 |
| Millet, grain (lbs.) | lb. | 0.035 | 0.3 | 0.3 |
| Mungbeans | lb. | 0.01 | 0.3 | 0.3 |
| Oats, grain | bu. | 1 | 0.3 | 0.15 |
| Peanuts | cwt. | 0 | 0.3 | 0 |
| Peas, dry | lb. | 0.01 | 0.3 | 0.3 |
| Popcorn | lb. | 0.031 | 0.3 | 0.3 |
| Potatoes | cwt | 0.4 | 0.3 | 0.3 |
| Quinoa | lb. | 0.075 | 0.3 | 0.15 |
| Rice, semi-dwarf, (bu.) | bu. | 1 | 0.3 | 0.15 |
| Rice, semi-dwarf, (cwt.) | cwt. | 2.2 | 0.3 | 0.15 |
| Rice, semi-dwarf, (lb.) | lb. | 0.022 | 0.3 | 0.15 |
| Rye, grain | bu. | 1.5 | 0.3 | 0.3 |
| Safflower | bu. | 0.05 | 0.3 | 0.3 |
| Sesame, grain | lb. | 0.0625 | 0.3 | 0.3 |
| Sorghum, seed prod. | bu. | 1.2 | 0.3 | 0.3 |
| Soybeans | bu. | 0.1 | 0.3 | 0 |
| Spring wheat, grain | bu. | 2.3 | 0.3 | 0.3 |
| Spring wheat, North Plains | bu. | 3.1 | 0.3 | 0.3 |
| Sugarbeets | tons | 7.5 | 0.3 | 0.3 |
| Sugarcane, planting | tons | 4 | 0.3 | 0.05 |
| Sugarcane, ratoon | tons | 2.7 | 0.3 | 0.05 |
| Sunflower, seed prod. | lb. | 0.05 | 0.3 | 0.3 |
| Sunflowers | lb. | 0.05 | 0.3 | 0.3 |
| Triticale, grain | bu. | 1.7 | 0.3 | 0.15 |
| Tobacco | lb | 0.075 | 0.3 | 0.3 |
| Winter wheat, fallow | bu. | 1.25 | 0.3 | 0.3 |
| Winter wheat, grain | bu. | 1.75 | 0.3 | 0.3 |
| Winter wheat, North Plains | bu. | 2.3 | 0.3 | 0.3 |