Fig. 5. Relationship between days of composting and weed seed viability for (a) green foxtail, (b) redroot pigweed, (c) wild buckwheat, and (d) wild oat in 1997 and 1999.
Fig. 5. Relationship between days of composting and weed seed viability for (a) green foxtail, (b) redroot pigweed, (c) wild buckwheat, and (d) wild oat in 1997 and 1999.