Effects of drainage water management on annual tile flow, NO3 N, and DRP loads.
Values were determined by first establishing the pretreatment relationship between
B2 and using data from 2006 to 2008. The linear equations and Pearson correlation
coefficients are shown below the table. The change in both tile discharge and nutrient
loads was then determined by summing the difference in the observed value
from B4 and the predicted value without drainage water management, which was
calculated by applying the pretreatment linear relationship to the observed values
from B2.