Download or read book The Residual Effects of Fertilizers Classic Reprint written by Firman E. Bear and published by Forgotten Books. This book was released on 2016-08-24 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Residual Effects of Fertilizers The soil is of a grayish yellow color with a yellowish subsoil. The original timber was largely oak and chestnut. At the time the experiments were begun the productivity of the soil was very low. The vegetation consisted principally of red top, yarrow, poverty grass, and sorrel together with some broomsedge. 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.

Download or read book The Residual Effects of Fertilizers 160 written by Firman E (Firman Edward) 1884 Bear and published by Legare Street Press. This book was released on 2021-09-09 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 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. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book The Residual Effects of Fertilizers written by Firman Edward Bear and published by . This book was released on 1916 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Residual Effects of Certain Fertilizers on Some Chemical and Biological Soil Conditions and on Crop Growth written by G. V. C. Houghland and published by . This book was released on 1926 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Economic Effects of Controls on Nitrogen Fertilizer Classic Reprint written by Earl Raymond Swanson and published by Forgotten Books. This book was released on 2017-11-20 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Economic Effects of Controls on Nitrogen Fertilizer Researchers are still uncertain about the possible link between human health hazards and the use of commercial nitrogen fertilizers and other sources that raise the nitrate content of water. In some areas of the United States the nitrate concentration in water, expressed as nitrate nitrogen, chronically exceeds the standard of 10 parts per million, in some cases up to ten times this level, yet no serious health problems have been linked to nitrates in these areas. Even so, the possibility that hazards may develop warrants an investigation of the economic effects of various control measures. 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.

Download or read book Effects of Soil and Foliar Applications of Nitrogen Fertilizers on a 20 Year Old Douglas Fir Stand Classic Reprint written by Richard E. Miller and published by Forgotten Books. This book was released on 2018-03-19 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effects of Soil and Foliar Applications of Nitrogen Fertilizers on a 20-Year-Old Douglas-Fir Stand We established nine -acre, circular plots in this stand before the 1973 growing season. We located three plots in an area designated for foliar fertilization by helicopter We placed the remaining six in an abutting 14-acre, non - spray area and randomly selected three of these plots for hand fertilization with urea prill; the other three were control plots (fig. Thus, our spray treated plots were adjacent, but not randomly intermingled with the other plots. 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.

Download or read book Fertilizer Use and Water Quality Classic Reprint written by G. Stanford and published by Forgotten Books. This book was released on 2018-03-19 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Fertilizer Use and Water Quality This publication evaluates the role of nitrogen and phosphorus fertilizers in water pollution and summarizes the research on the complex relations between nutrient inputs and outputs. Available data do not often permit making valid estimates of nutrient transfer from fertilizers to ground and surface waters. A reliable basis for evaluating the effects of fertilizers on water quality requires quantitative measurements of water inputs and behavior in agricultural watershed studies that encompass appropriate ranges in climatic and management conditions. When virgin soils in the United States were first cultivated, many were rich in organic matter and plant nutrients. These soils provided far more nitrogen than the crops could use, and losses by leaching to water bodies or by denitrification to the atmosphere were large. As a result of cultivation, these natural supplies gradually diminished. By 1969, the use of almost 7 million tons of fertilizer nitrogen a year, as well as improved land use and management practices, was still not enough to compensate for the large yearly drop in the capacity of the soil to supply nitrogen. 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.

Download or read book The Effects of Fertilizers in a Cultivated Orchard Classic Reprint written by J. H. Gourley and published by Forgotten Books. This book was released on 2018-05-04 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Effects of Fertilizers in a Cultivated Orchard Some experimental work conducted in England at the Woburn Experimental Fruit Farm and reported in the fourth and fifth reports of that Station shows no effect from the annual applica tion of manures or commercial fertilizers to an orchard under cultivation for a period of fourteen years. The fact that returns from the application of fertilizers in a cultivated orchard were not superior to returns from good cultivation is significant in this connection. 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.

Download or read book Soil Fertility and Fertilizers Classic Reprint written by James Edward Halligan and published by . This book was released on 2015-07-06 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Fertility and Fertilizers This book has been written to be within reach of the student, farmer, manufacturer and other persons interested in the subject of "Fertilizers." Technical terms have been omitted as much as possible. It has been the aim of the writer to bring this subject up to date, not only from the manufacturers viewpoint but from the actual field results as well. A full discussion of the data in the tables has necessarily been avoided so as not to make the book too voluminous. 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.

Download or read book Determining Profitable Use of Fertilizer Classic Reprint written by Donald Bryan Ibach and published by Forgotten Books. This book was released on 2017-11-18 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Determining Profitable Use of Fertilizer Fertilizer has been important in increasing yields of crops and total farm output. Increases in yields brought about by use of more fertilizer have meant higher returns not only per acre, but also per hour of labor. For small farmers particularly, wise use of ferti lizers means a substantial increase in size of business. Overhead costs per acre are usually higher on small farms than on large ones. Therefore, in order for small farms to obtain the same net return per acre as large farms they have to obtain high yields. A knowledge of yield response at different rates and combinations is necessary in order to decide upon the most profitable application of fertilizer° 'widespread information of this type would guide farmers in making choices as to expenditures. In periods of declining prices, returns from.all expenditures are reduced, but it is particularly important to maintain the practices that contribute most to net returns. Farmers who have followed good practices, including profitable use of fertilizers, know about what yields represent the most profi table levels for their own farms, but they may not be aware of the effect of changes in prices and costs on rates that should be applied for maximmm.returns. Also, there are often different ways of reach ing these yieldso For example, different combinations of plant nutri ents may result in the same yield, but one combination may cost less per acre than another. This aspect of the most profitable use of fertilizer has general implications as well as implications for indi 'vidual farms. For example, if sulfur, which is used in the manufac ture of phosphate fertilizer, should cost more in the future relative to other materials used in manufacturing fertilizers than it has in the past, it might influence recommendations that should be made as to plant nutrient ratios for specific purposes. If, for example, more nitrogen and less phosphate will result in the same yield of a given crop, recommendations should reflect this fact if reserves of sulfur should become relatively short. Such questions as this can be answered only by adequate information as to yield response at different rates and combinations of plant nutrients. Economic interpretation can then provide answers as to the most profitable rates and combinations for any cr0p price-fertilizer cost relationship. It can also determine the least-cost combination at which to obtain a stated yield. 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.

Download or read book The Effect of Fertilizers on Plant Composition written by Robert Erin Alexander McAllister and published by Forgotten Books. This book was released on 2018-10-08 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Effect of Fertilizers on Plant Composition: A Thesis Introduction It is only in the last few years attempts have been made to include the use of co fertilizers. 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.

Download or read book The Residual Effects of Phosphorus Fertilizers as Measured by an Isotopic Method and by Chemical Soil Tests written by Gotfred Uhlen and published by . This book was released on 1982 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Fertilizers on the Physical Properties of Hawaiian Soils Classic Reprint written by William McGeorge and published by Forgotten Books. This book was released on 2017-11-19 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effect of Fertilizers on the Physical Properties of Hawaiian Soils It has been the custom in Hawaii since agriculture was first placed upon a commercial basis to stimulate crops with heavy applications of mineral fertilizers. This procedure has been maintained in spite of the fact that a majority of the soils are naturally well supplied with plant food, in some instances abnormally so. 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.

Download or read book American Fertilizers Classic Reprint written by Perry Eugene Howard and published by Forgotten Books. This book was released on 2017-11-19 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from American Fertilizers In this publication is given a brief description of the production of commercial fertilizer. It is believed that this description, in which complex technical discussion and statistics are avoided, will be of use to students, as well as farmers and gardeners. 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.

Download or read book Evaluation of Fertility by Plant and Soil Analysis written by David Davidescu and published by Taylor & Francis. This book was released on 1982 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 2004. Routledge is an imprint of Taylor & Francis, an informa company.

Download or read book Nutrients for Sugar Beet Production written by Arthur Philip Draycott and published by CABI. This book was released on 2003 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: After a summary of world sugar production from beets, the authors cover the plant's need of each macro and micronutrient and effects on growth, yield and crop quality. The soil's supply of nutrients is examined as the basis for use of mineral fertilizers, organic manures and foliar applications. The book provides an up-to-date review of relevant research and the authors draw out practical guidelines so that all concerned with growing the crop can make use of this latest information. The book is destined to become the standard reference on the subject for many years to come. It represents the only significant work in English since Dr. Draycott's earlier title on the same subject, published 30 years ago.

Download or read book Conventional and Organic Farming A Comprehensive Review through the Lens of Agricultural Science written by Victor M. Shorrocks and published by 5m Books Ltd. This book was released on 2017-12-18 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic farming comes with many connotations of ‘natural’, ‘wholesome’, ‘healthy’, ‘superior’, ‘environmentally friendly’, and ‘sustainable’. But just what is the scientific evidence behind the claims of healthier food and better farming systems made by the organic movement? Using peer reviewed literature, the latest studies and a rigorous investigation of claims made by opponents of conventional farming, the author provides an even handed and scientifically objective review of the contributions of organic farming to human health, crop yields, the environment and agriculture from a global perspective. The aim is to separate out the marketing spin, the claims of one camp or another and political ideologies to provide a straightforward appraisal of both the benefits and exaggerated claims of organic farming. The approach taken is to present the evidence – in the form of data, study results and presentation of source material for the claims made by conventional and organic, and leave the reader to make their own judgements on the validity of the case for organic over conventional farming. The book also addresses a fundamental question in modern farming – organic agriculture’s ability to feed the world in the face of a growing population and growing demand for meat, and provides a timely scientific comparison of the practices, relative yields and benefits of organic versus conventional agriculture. The ways conventional farming has progressed from hunter gatherer days and possible future developments are discussed. Conventional and Organic Farming is an ideal book for agricultural policy makers, researchers and academics, as well as agricultural students, conventional and organic farmers. 5m Books