Dynamics of Organic Components during Decomposition of Cow Manure Mixed with Different Green Manures

Cow manure separately composted with alfalfa,timothy and redroot amaranth,to research the dynamic changes of organic components during composting.After cow manure composted with the three kinds of green manure,the water-soluble organic components in composting products were increased.And it could provide more nutrients which could be absorbed directly by crops.Also water-soluble humic acids were produced obviously in composting products.The effect of the treatment of composting with alfalfa was the best.Cow manure separately composted with alfalfa and timothy,not only the alkali-soluble organic matter and humic acids were increased,but also the alkali-soluble fulvic acids were decreased at the late composting.The effect of the treatment of composting with redroot amaranth wasn't obvious.