Fig. 2. Microbial biomass C of Watsonville and Oxnard soils 1 wk after fumigation with methyl bromide (MeBr) or an alternative (Week 1), at planting (Week 4), and at peak strawberry growth (37 or 30 wk). For each sampling date, means followed by a different letter are significantly different at P < 0.05. Absence of letters indicates no significant differences. Error bars represent the standard deviation, n = 4. CP chloropicrin; EC, emulsifiable concentrate; PrBr, propargyl bromide.