Table 3.
Percent sugarbeet leaf degradation for at-harvest and soil-incorporated post-harvest samplesz,y collected 0-, 35-, 70-, and 168-days post-harvest (DPH) from fall-applied treatments in field studies in 2021-2022.
| Treatment z | 2021-2022 | ||||
|---|---|---|---|---|---|
| Leaf Degradation (%) x,w | |||||
| 0-DPH | 35-DPH | 70-DPH | 168-DPH | ||
| Control | 20.1 | a | 40.9 | 75.1 | 91.4 |
| Heat (4.8 kmph) | 12.9 | b | 37.1 | 63.7 | 90.9 |
| SE | 1.7 | 7.8 | 5.5 | 1.0 | |
| P-value v | 0.0211 * | 0.2731 | 0.0691 | 0.7468 | |
| LSD | 5.2 | - | - | - | |
z Non-treated control and heat treatment using a propane-fueled burner (Multi-Trail Enterprises LLC) calibrated to heat foliage to 649-871°C 4.8 kmph prior to defoliation.
y Measurements were collected from independent sets of leaves at each timepoint, not repeated measurements from the same sets of leaves over time.
x Percent leaf degradation calculated using initial leaf weights at-harvest and final weights post-harvest [(Initial – Final)/Initial].
w Column values followed by the same letter were not significantly different based on Fisher’s Protected LSD (α = 0.05).
v Asterisk designations correspond to p-value thresholds<0.05 *.