Table 2.
Pearson’s correlation matrixa for covariates correlated with application size, r (P-value), n = 144
| Ln(captan a.i. applied, kg) | Ln(number of acres sprayed) | Ln(duration applied, min) | Number of tank mixes applied | Application method | Tractor used | |
| Ln(captan a.i. applied, kg) | 1.0 | 0.76 (<0.0001) | 0.62 (<0.0001) | 0.37 (<0.0001) | 0.77 (<0.0001) | 0.59 (<0.0001) |
| Ln(number of acres sprayed) | 1.0 | 0.66 (<0.0001) | 0.40 (<0.0001) | 0.54 (<0.0001) | 0.37 (<0.0001) | |
| Ln(duration applied, min) | 1.0 | 0.51 (<0.0001) | 0.22 (0.0076) | 0.17 (0.048) | ||
| Number of tank mixes applied | 1.0 | 0.22 (0.0070) | 0.039 (0.64) | |||
| Application method | 1.0 | NAb (<0.0001) | ||||
| Tractor used | 1.0 |
NA, not applicable.
a
Observations were treated as independent.
b
As both variables are dichotomous, a chi-square P-value is reported.