Hevea Brasiliensis Or Para Rubber Its Botany Cultivation Chemistry And Diseases Classic Reprint
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The history of Para rubber. History of rubber plantations. Botanical sources of rubber. Climatic conditions for Hevea brasiliensis; Rate of growth of Hevea brasiliensis. Planting operations and methods of cultivation. Cultivation of cath and intercrops. Hevea rubber soils and manuring. Tapping operations and implements. How to tap. Where to tap. When to tap. How notable estates are being tapped. Effects of tapping. Tapping and yields in the Amazon Region. Yields in Malaya. Yields in Ceylon and South India. Yields n the dutch East Indies, Borneo, Africa, etc...
Hevea Brasiliensis, Or Para Rubber by Herbert Wright Pdf
Excerpt from Hevea Brasiliensis, or Para Rubber: Its Botany, Cultivation, Chemistry and Diseases, With Plates and Diagrams In the previous edition, written long before the Ceylon Rubber Exhibition, I pointed out that the industry, as far as growers were concerned, was in its infancy. The present edition has been compiled in consequence of the many advances which have been recently made in methods Of cultivation and tapping, coagulating, and curing Operations. I have, since I retired from the Ceylon Service, had signal Opportunities of studying the rubber industry from many points Of View; the wider knowledge thus gained prompted me to give a more detailed account of essential operations as carried out by rubber collectors in all parts of the world. 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.
HEVEA BRASILIENSIS OR PARA RUB by Herbert Wright Pdf
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
The Cultivation and Preparation of Para Rubber by William Henry Johnson Pdf
The World's production and consumption of rubber. The Para rubber tree at home and abroad. Propagation. Planting and cultivating. Soils and manures. Pests. Latex. Collecting the latex. Rubber manufacture. The antisepticisation of rubber. Drying and packing rubber for export. Yield of Para rubber from cultivated trees. Establishment and maintenance of a Para rubber plantation. Commercial value of the oil in Hevea seeds.
Rubber in British Africa.The principal rubber-yielding plants. Latex. The tapping of rubber plants. The preparation of rubber. The chemistry of rubber. Statistics of consumption and prices. The Para rubber tree (Hevea brasiliensis, Müll. Arg.). The Ceara rubber tree (Manihot glaziovii, Müll. Arg.). The African rubber tree (Funtumia elastica, Stapf.). The African rubber vines. The Central American rubber tree (Castilloa elastica, Cerv.). The Assam rubber tree (Ficus elastica, Roxb.) and other species of ficus.
Originally published in 1913, this book provides a comprehensive discussion of rubber cultivation and the rubber industry. The text was written to appeal to as wide a readership as possible, combining an accurate account of the scientific side of rubber planting with practical information for the prospective planter. Illustrative figures and a bibliography are included. This book will be of value to anyone with an interest in the rubber industry, botany and the history of science.
In the tradition of Silent Spring, Raoul Robinson's Return to Resistance calls for a revolution. Traditional plant breeding techniques have led us to depend more and more on chemical pesticides to protect ourcrops. Return to Resistance shows gardeners, farmers, and plant breeders how to use a long-neglected technique to create hardy new plant varieties that are naturally resistant to pests and disease. Horizontal resistance breeding has been largely ignored in this century due to the popularity and apparent successes of the Mendelian geneticists. However the colossal, unrecognized failure of m.
Fruit Trees and Useful Plants in Amazonian Life by Patricia Shanley Pdf
This publication is a testament to the enormous potential that integrating traditional and scientific knowledge can have for both local communities and academic and development professionals alike. It also serves as a reminder to the scientific community that science should be shared with local people and not confined to journals and closed circles of technical experts. From Brazil nuts and Cat's claw to Copaiba and Titica, this book shares a wealth of information on a wide range of plant species that only close collaboration between local peoples and researchers could possibly breed.
Useful Plants of Neotropical Origin by Heinz Brücher Pdf
This book deals with useful plants of neotropical origin, i.e., plants which have been cultivated in Southern and Central America as well as their wild relatives. Quite a number of these trees and bushes have "conquerred" the world as early as 400 years ago and are nowadays of utmost importance for feeding the increasing world population (e.g., potatoes). It has been estimated that about 150 such useful plants stem from the "New World." This book does not only describe the current theories about their domestication, cultivation, and evolution; it also discusses biotechnological methods for improving their productivity. About the German edition: ..". One of the most interesting and recurring themes of this book concerns some little-known species of potential value which may well become important to a future which is certain to present us with serious problems, at least as far as alimentation is considered. BrA1/4cher's book is absolutely up to date in the taxonomic and nomenclatural sense..." "Excerpta Botanica"#1