Excerpt from Evaluation of Malathion, Synergized Pyrethrum, and a Diatomaceous Earth as Protectants Against Insects in Sorghum Grain. ..In Small Bins The diatomaceous earth (perma-guard(R)) was applied at the rate of 125 pounds per bushels or about pounds per ton. It was thoroughly mixed with the sorghum grain by rotating them in a steel barrel roller for 5 minutes. Immediately after an individual treatment, about 4 bushels Of the grain was poured into each of 5 bins, 5 cubic feet each, set on a 2 foot-square sheet Of building felt over a mason ite base. Five replicates of each treatment and 5 untreated check bins were placed in a randomized 5 by 5-block arrangement in a 14 by 16-foot upstairs room of a heated dwelling house. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.