Commercial Fertilizer Report For 1941

Author : Arnon Lewis Mehring
Publisher : Forgotten Books
ISBN 13 : 9780331397444
Total Pages : 58 pages
Book Rating : 4.3/5 (974 download)

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Download or read book Fertilizer Consumption in 1941 and Trends in Usage (Classic Reprint) written by Arnon Lewis Mehring and published by Forgotten Books. This book was released on 2017-11-19 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Fertilizer Consumption in 1941 and Trends in Usage Plant nutrients are divided by the Association of Official Agriculture Chemists in its Official definitions into primary and secondary plant food elements. The primary plant nutrients are nitrogen, phosphoric acid, and potash. Only these three are included in this work. Plant food and plant nutrient are here used as synonymous terms, as is customary in fertilizer laws and common usage, though this does not strictly follow the terminology of plant physiology. Commercial fertilizers usually contain somewhat more of each plant nutrient than is guaranteed or indicated by the grade. This excess, known as the overrun, was used in determining the actual nitrogen (n), phosphoric acid (p205), and potash contents of fertilizers consumed in 1941 by the method described in detail by Mehring and Deming Briefly, this method involves averaging the guaranties and analyses given in the State fertilizer control bulletin for all mixtures of a given class sold during the season involved and adding the excess of the average analysis over the average guaranty to the weighted average grade as found from the tons of each grade sold. Parts of the necessary data for 1941 were unavailable for Arkansas, Idaho, Illinois, Montana, Nebraska, Nevada, North Dakota, South Dakota, Tennessee, Utah, Washington, and Wyoming: In such cases, estimates were made from 1939 tonnage data and analyses published by the nearest States with similar conditions. 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.