Table 2: Approximate quantity of nutrients removed in harvested crop.

Crop

Nutrient Removal

P₂O₅

K₂O

Corn

Grain
Silage

0.37 lb/bu
3.1 lb/T

0.27 lb/bu
9.0 lb/T

Soybeans

Grain

0.80 lb/bu

1.4 lb/bu

Wheat

Grain
Straw

0.64 lb/bu
0.09 lb/bu

0.36 lb/bu
0.91 lb/bu