The Poisoned Fruit Trees PDF Download

Excerpt from The Season's Work on Arsenical Poisoning of Fruit Trees Summary of Orchard Investigations: It will be seen from the above descriptions that in the regions like the Pajaro Valley, the Rogue River and Hood River Valleys, where little or no irrigation water is used, and where if anything the orchards suffer from lack of water, and the soils are comparatively free from alkali, the troubles under consideration are entirely unknown. That in every district in which the alkali is present in sufficient amounts to appear on the surface and where water is sufficiently abundant to cause seepage in the lower districts, that more or less of these root rot or collar rot conditions occur. In bad cases of seep age whole orchards are stricken within a year or two, oftentimes after they have borne a number of heavy crops. This may be due to a gradual rise of the ground water, or to the gradual extension down ward of the roots of the trees. In milder cases, only here and there a tree is affected and these often linger along for a number of years, sometimes in a dry year, partially recovering, only to be stricken again in a wet one. If there is any perceptible slope to the ground the trouble will usually be more marked on the lower end of the irrigation furrows. Where alkali is evidently the cause of the death of the trees, no variety seems to be exempt, all being equally afiected. 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.