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