Table 3: Analysis of variance summary of the effects of tillage practice [i.e., conventional and no-tillage (n = 8)], urea fertilizer type [i.e., N-(n-butyl) thiosphosphoric triamide (NBPT)-coated and non-coated urea (n = 8)], days after flooding (DAF), and their interactions on aboveground dry matter, yield, soil oxidation-reduction (redox) potential, and soil temperature from 2017 at the Rice Research and Extension Center near Stuttgart, AR. Bolded values represent significant effects (P < 0.05).
Measured property/Treatment effect | P |
Aboveground dry matter | |
Tillage practice | 0.01 |
Fertilizer | 0.61 |
Tillage practice × fertilizer | 0.48 |
Grain yield | |
Tillage practice | 0.01 |
Fertilizer | 0.54 |
Tillage practice × fertilizer | 0.41 |
Soil redox potential | |
Tillage practice | 0.96 |
Fertilizer | 0.48 |
DAF | < 0.01 |
Tillage practice × fertilizer | < 0.01 |
Tillage practice × DAF | < 0.01 |
Fertilizer × DAF | 0.95 |
Tillage practice × fertilizer × DAF | 0.94 |
Soil temperature | |
Tillage practice | 0.53 |
Fertilizer | 0.22 |
DAF | < 0.01 |
Tillage practice × fertilizer | 0.03 |
Tillage practice × DAF | < 0.01 |
Fertilizer × DAF | 0.65 |
Tillage practice × fertilizer × DAF | 0.67 |