Fig. 3. Effects of time-of-incorporation and irrigation on the total mass loss of barley straw during the fallow and cropping phase. Irr = summer irrigated, NIrr = nonirrigated. Values are means (n = 6) of mass loss data expressed on an ash-free dry weight (AFDW) basis. The LSD bar (P = 0.05, d.f. = 15) is for comparisons of total mass loss (Fallow + cropping phase).