Chicken manure and rice stalk were composted in windrow and microbial inoculants of Bacillus spp.were added.The composting lasted for 42 days.During the composting,content of total humic acids in both the inoculated compost and the control dropped in the earlier stage and then rose in the later stage.In the first 3 days the inoculated compost and the control had almost the same content of total humic acids,however,at the seventh day content of total humic acids in the inoculated compost began to surpass the...