Matches in Harvard for { ?s ?p "Good rotations and efficient farm practices will subdue weeds. Three main principles of weed control must be observed: (1) prevent weeds from maturing seed on the farm, (2) prevent the introduction of weeds on the farm, and (3) prevent perennial weeds from making top growth."--Title page verso.. }
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- catalog abstract ""Good rotations and efficient farm practices will subdue weeds. Three main principles of weed control must be observed: (1) prevent weeds from maturing seed on the farm, (2) prevent the introduction of weeds on the farm, and (3) prevent perennial weeds from making top growth."--Title page verso.".
- catalog description ""Good rotations and efficient farm practices will subdue weeds. Three main principles of weed control must be observed: (1) prevent weeds from maturing seed on the farm, (2) prevent the introduction of weeds on the farm, and (3) prevent perennial weeds from making top growth."--Title page verso.".