Figure 3: NH4-N dynamics in manure of the rainy season storage experiment. Error bars represent standard error of the mean values. Continuous lines represent the best-fit regression equations for NH4-N dynamics in manure during the dry season experiment. The solid line (—) represents the best-fit regression for the Medium quality manure treatments. The dashed line (- - - -) represents the best-fit regression for the Low quality manure treatments. represents the amount of NH4-N (mg/kg manure DM) in the manure. Medium quality manure: , . Low quality manure: , . The rate equations for NH4-N dynamics between the manure sources did not differ at significance level α = 0.05.