Fertilizers in Relation to Soils and Crop Production (Classic Reprint) PDF Download

Author: Robert Harcourt
Publisher: Forgotten Books
ISBN: 9780265885604
Category :
Languages : en
Pages : 36

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Book Description
Excerpt from Fertilizers in Relation to Soils and Crop Production Is required. He must also know something about the available supply of plant foodinthesoflandthenatureofthefertilizerbeinguaed.thesefem'tilizereare. 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.

Author: Milton Whitney
Publisher: Forgotten Books
ISBN: 9780331505115
Category : Business & Economics
Languages : en
Pages : 76

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Excerpt from The Chemistry of the Soil as Related to Crop Production The objects to be attained in the management of a soil are the deter mination of the crop or crops adapted to it, the regulation Of the yield, and the control of the quality of the product. The investigations made by the Bureau of Soils during the last ten years have Shown that the economic distribution of crops is dependent mainly upon the physical characteristics of soils and upon climate. It has been believed that the chemical characteristics of soils have a more or less direct and controlling influence on the yield Of a crop On any particular soil; that is to say, where wheat yielded 10 bushels per acre in one field, and in an adjoining field (the soil of which had the same texture, so far as could be determined, although it might be in a better physical condition) 25 or 30 bushels were Obtained, this difference in yield would be found to be due to or associated with a difference in the amount of available plant food in the soil of the two fields. It was believed, further, that the better physical condition resulting through loosening up and aerating the soil and exposing it to the weathering influence of the atmosphere by better and more thorough methods Of cultivation would in itself prepare a larger amount of readily available food material for the use of crops. These two subjects, distribution and yield, are both of vital impor tance to the farmer; but While the yield of crops has been a study for the experimenter and farmer alike throughout historic times, too little attention has been paid by him to the adaptation of particular soils to crops. The yield is to-day the paramount question with the farmer, and all his energy and resources in the last analysis tend to this end. 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.

Author: Homer J. Wheeler
Publisher: Forgotten Books
ISBN: 9780267992102
Category : Science
Languages : en
Pages : 422

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Excerpt from Manures and Fertilizers: A d104-Book for College Students and a Work of Reference for All Interested in the Scientific Aspects of Modern Farming Care has been taken to discuss the reasons for many of the conflicting Opinions on various subjects, in the belief that those entering upon agricultural research work should be taught to give such matters more careful consideration than is frequently the case. No apology is offered by the writer for the frequent refer ence to certain lines of research work at the Rhode Island agricultural experiment station, for the reason that he can speak of these results in a more authoritative way than of work done elsewhere. Furthermore, the work has been, in some respects, of a pioneer character, and has not been duplicated. In certain of the chapters matter will be found which is of too theoretical a character to meet the needs of the casual reader, and he is requested to pass it over charitably, remem bering that the prime object of this work is not to give rule of-thumb directions, but rather to aid in inculcating such general principles as shall aid in making the student as independent as possible of them, and at the same time fur nish a foundation upon which to base his future study of the various relations of fertilizers and manures to soils and crops. 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.

Author: Andrew Robeson Whitson
Publisher: Forgotten Books
ISBN: 9781528272421
Category : Business & Economics
Languages : en
Pages : 324

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Excerpt from Soils and Soil Fertility The business of the farmer is to produce the various food materials and those from which clothing is made. These materials are of both animal and vegetable origin; but since all agricultural animals must depend on vegeta tion for their food, the growth Of farm crops forms the basis of all agriculture. 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.

Author: A. F. Gustafson
Publisher: Read Books Ltd
ISBN: 1473384524
Category : Technology & Engineering
Languages : en
Pages : 170

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This vintage book contains extensive information on fertilisers, exploring their various ingredients, how they are used, what they do, and much more. A veritable encyclopaedia on the subject, “Handbook of Fertilizers” contains much information that will be of use to the modern farmer or gardener, and it would make for a fine addition to collections of related literature. Contents include: “Requirements For Plant Growth”, “Nitrogeneous Fertilizer Materials”, “Phosphatic Fertilizer Materials”, “Potash Fertilizer Materials”, “Effects Of Fertilizers On”, “Crops And Soils”, “Factory-Mixed Fertilizers”, “Home-Mixing Of Fertilizers”, “Purchase And Use Of Fertilizers”, etc. Many vintage books such as this are increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with a specially-commissioned new introduction on soil science.

Author: Charles Lorin Quear
Publisher: Forgotten Books
ISBN: 9781333272845
Category : Business & Economics
Languages : en
Pages : 224

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Excerpt from Soils and Fertilizers, for Public Schools: A Discussion Upon the Nature and Treatment of Soils and the Value of Fertilizers There has been much ob eet'ion to the teaching of Agriculture in our District Schools, because teachers claim they do not have time to take up an additional subject, when they have so many subjects that are already required, and which must be taught. However, in recent years Agriculture has been coming into its own, and is being taught more and more in the schools. Teachers have begun to realize that any subject which holds the interest and attention of the pupils is worthwhile, and that any sub ect which does not hold their attention is not worthy of a place in our already crowded School course. In order to make Agriculture interesting to the pupil, we must base the work upon real practical problems which he can understand and appreciate. To do this is no small task, and it is a thing which demands a great deal of perseverance and initiative, on the part of teachers In such schools. The more ideas which an author attempts to incorporate into a text book, the more complex his text becomes, and the more difficult it is to follow. Therefore, in this text book we have taken' only a few of the most important conditions and have tried to incorporate them in such a manner that they can be used by the average district or graded school. We have tried further to make the book correct - theoretically and practically. The entire text has been written for boys and girls of the country schools, with these two things in mind, and the success which attends its use presupposes a proper presentation of many minor details, which it would be impossible to include under this cover. Many teachers get the idea that the sub ect of Agriculture as taught in our public schools is a Vocational Sub ect. This is' a mistaken idea, and the teachers should above all bear in mind that we are not making better farmers so much as we are making better men and women who are farmers. Naturally the teaching of Agriculture will make better farmers, and will serve to keep more of our boys on the farm. 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.

Author: Harry Snyder
Publisher: Palala Press
ISBN: 9781356171354
Category :
Languages : en
Pages : 398

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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.

Author: Frank T. Shutt
Publisher: Forgotten Books
ISBN: 9781390246018
Category :
Languages : en
Pages : 76

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Excerpt from Manures and Fertilizers: Their Nature, Functions and Application Before entering upon the discussion of the subject matter proper it will be well to, briefly emphasize the importance of increasing or at least maintaining soil fertility, if farming is to be made profitable. Continuous cropping, even on soils of the finest quality, without a concomitant return of plant food and the return of humus-forming material must result in soil impoverishment and decreased crop yields. 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.

Author: Harry Snyder
Publisher: Forgotten Books
ISBN: 9781528080361
Category : Business & Economics
Languages : en
Pages : 294

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Excerpt from Soils and Fertilizers It is evident from the preceding example that any thing like an adequate idea of the growth and compo sitiou of plant bodies could not be gained until the composition of air and water was established. The discovery of oxygen by Priestley in 1774, of the composition of water by Cavendish in 1781, and of the r61e which carbon dioxide plays in plant and animal life by De Saussure and others in 1800, formed the nucleus of our present knowledge regarding the sources of matter stored up in plants. It was between 1760 and 1800 that alchemy lost its grip because of advances in knowledge and the way was opened for the development of modern chemistry. 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.

Author: Robert Harcourt
Publisher: Forgotten Books
ISBN: 9780364644386
Category :
Languages : en
Pages : 26

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Excerpt from Fertilizers and Their Use On our comparatively new lands, and in general farm practice where a judicious rotation of crops is followed. And where grain is fed on the farm and the manure properly cared for, it may not be necessary to use commercial fertilizers; but where the nature of the crops grown prevents rotation, and where very little farmyard manure is produced, they may be required. More and more each year it is found that the increased cost of production and the consequent need of producing maximum crops, and the growing demands of the larger towns and cities for garden and fruit products of high quality, are causing market gardeners and fruit growers to consider seriously the advisability of using some form of fertilizer. This has created a demand for information concerning these substances which it has not been easy to fill; for experience has shown that the farmer must posses a wide knowledge of plants, soils and the fertilizers themselves before he can properly use them. To intelligently and economically use fertilizers, it is essential that the farmer understand the needs of the cr0ps, their power to gather the essential plant food constituents from the soil, and the purpose of their growth, i.e., whether the object is to produce an immature plant for early market, or whether maturity is required. He must also know something about the available supply of plant food' tn the soil and the nature of the fertilizer being used. These fertilizers are expensive, and unless they are intelligently applied in conjunction with very thorough cultivation they will not give their best results. They cannot take the place of cultivation; for they are food materials, and can only aid the growth of the plant as they are absorbed by the roots, and these cannot develop fully in a poorly cultivated soil. 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.