Table 4: ANOVA results for N content (DM basis) of manure in storage in the rainy season experiment, as a percent of the initial manure N content, and for NH4-N content (mg NH4-N per manure storage unit) of leachate collected from manure in storage in the rainy season experiment. Fixed effects are the manure quality (Medium versus Low quality), the presence or absence of urine in the manure, and the number of days the manure was incubated (0, 6, 12, 18, 24, or 30 days). Terms for the interaction between fixed effects are denoted by fixed effects terms separated by an asterisk (*). DF represents the degrees of freedom of the test.

Effect -value
DFDM mass
(% of initial DM mass)
(% of DM)
(% of DM)
(% of DM)
Leachate NH4-N
(mg/storage unit)

Medium versus Low quality [A]10.1037<0.0001<0.0001<0.0001<0.0001
Urine added versus no urine [B]10.98420.10390.19670.079<0.0001
Days in storage [C]40.00040.00770.03140.2868<0.0001