Oil spray as weed control in carrot and related crops
A. S. Crafts
California Agriculture 1(7):4-4. DOI: 10.3733/ca.v001n07p4b.
Not available – first paragraph follows:
Weeding is a costly and laborious operation in the growing of vegetable crops. It usually requires much hand labor.
A. S. Crafts is Professor of Botany and Botomist in the Experiment Station Davis.