the GNU version of the Collaborative International Dictionary of English
n. The act of process of applying manure; also, the manure applied.
The Century Dictionary and Cyclopedia
n. The addition of any substance to the soil to increase its fertility; fertilizing.
Word Usage
"The tribes who still retain the semblance of independence are forced to perform all the labor of the fields, such as manuring the land, weeding, reaping, building, making dams and canals, and at the same time to support themselves."