Show tests for acid spray to kill weeds effective new york modern agriculture has linked forces with science to save american grain farmers millions of dollars annually and to eliminate thousands of hours of hardi hard lalor labor this latest advance on the amer ican can farm front as announced by the agricultural research advisory bureau substitutes a sulphuric acid spray for the hoe and hand system of weed eradication in grain fields the method is said also to increase the grain yield per acre from 50 to 80 per cent i extensive experiments in california texas and several midwestern states during the past year have proved according to information collected by the bureau that dilute sulphuric acid will not harm grains but is almost per cent efficient of certain of as a destroyer types weeds notably wild radish and mustard j |