In the construction and destruction of mounds, organic matter and soil nutrients are recycled through incorporation of crop residues and weeds, and through flooding, many pests and pathogens in the soil are destroyed.
(organic matter and soil nutrients; are recycled; L:In the construction and destruction of mounds) (many pests and pathogens in the soil; are destroyed; )
organic matter and soil nutrients many pests and pathogens in the soil
are recycled are destroyed
L:In the construction and destruction of mounds