Mighty Ape can deliver this product within 1-2 business days
(usually overnight) to urban centres across Australia, and some remote areas.
using standard courier delivery
Excerpt from The Growth of Wheat Seedlings as Affected by Acid or Alkaline Conditions A few years ago Director Thorne, of the Ohio experiment station, called the attention of one of the authors to peculiar conditions exist ing on certain of his fertilizer experiment plots, to which potassium chlorid and potassium sulphate had been applied annually for the past 12 years. These plots had become so acid that it was found impossible to grow clover on them. Liming one-half of each plot had restored that half to almost its original fertility. This acidity, he said, was due to the selective action of the root, doubtless a correct explanation which will be considered in detail later. There seems to be a natural tendency for all soils to become acid under continuous culture, due chie y to one of two processes. The. Primary cause of this acidity is the decay of organic matter, leaves, stems, etc., which during decomposition develop acid-reacting bodies. If this process is allowed to continue, the reaction will ultimately become alkaline, but under soil conditions, especially if the aeration is poor and the water level high, decay is apt to be checked, leaving the soil in a characteristic acid condition. This phase of soil acidity, which will not be considered in this bulletin, -has been studied exten sively during the past few years, particularly by the Rhode Island and Ohio experiment stations, and by Mr. Frederick V. Coville1 in his elaborate investigations on the blueberry. Peat bogs furnish an exaggerated case of acidity, due to organic matter. The secondary cause of soil acidity is the subject of the investigation herein reported. 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."