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Author: Milton Whitney Publisher: Forgotten Books ISBN: 9780331505115 Category : Business & Economics Languages : en Pages : 76
Book Description
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: Milton Whitney Publisher: Forgotten Books ISBN: 9780331505115 Category : Business & Economics Languages : en Pages : 76
Book Description
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: Inamuddin Publisher: John Wiley & Sons ISBN: 1119710189 Category : Science Languages : en Pages : 290
Book Description
This book explores the state-of-the-art information regarding applied soil sciences. It covers the fundamentals, model concepts, principles, chemical reactions, functions, chemical recycling, chemical weathering, acid-base chemistry, carbon sequestration, and nutrient availability of soils. Also, it includes soil chemistry of heavy-metals, environment, clay, ion-exchange processes, analytical tools and applications. This book helps to understand the about soil characteristics targeting soil chemical reactions and interactions and its applications.
Author: Joseph Scudder Chamberlain Publisher: ISBN: Category : Agricultural chemistry Languages : en Pages : 636
Book Description
Crops and the soil. The world's food factory, or the plant in air and light. Soil life. Where the nitrogen comes from. Maintaining soil fertility. Cereals. Sugar and sugar crops. Fruit and vegetables. Fermentations on the farm. Chemical warfare to save the crops. Agriculture and the evolution of our diet. Vitamins in hyman and animal nutrition. Meat in its relation to human nutrition and agriculture. Chemistry as a guide in animal production. The chemistry of milk and its products. The chemist as detective and policeman, or fertilizer, freed and insecticide control.
Author: Mahdi M. Al-Kaisi Publisher: Academic Press ISBN: 0128054018 Category : Technology & Engineering Languages : en Pages : 420
Book Description
Soil Health and Intensification of Agroecosystems examines the climate, environmental, and human effects on agroecosystems and how the existing paradigms must be revised in order to establish sustainable production. The increased demand for food and fuel exerts tremendous stress on all aspects of natural resources and the environment to satisfy an ever increasing world population, which includes the use of agriculture products for energy and other uses in addition to human and animal food. The book presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate. The book explores the introduction of sustainable agroecosystems that promote biodiversity, sustain soil health, and enhance food production as ways to help mitigate some of these adverse effects. New agroecosystems will help define a resilient system that can potentially absorb some of the extreme shifts in climate. Changing the existing cropping system paradigm to utilize natural system attributes by promoting biodiversity within production agricultural systems, such as the integration of polycultures, will also enhance ecological resiliency and will likely increase carbon sequestration. Focuses on the intensification and integration of agroecosystem and soil resiliency by presenting suggested modifications of the current cropping system paradigm Examines climate, environment, and human effects on agroecosystems Explores in depth the wide range of intercalated soil and plant interactions as they influence soil sustainability and, in particular, soil quality Presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate
Author: Robert L Zimdahl Publisher: Academic Press ISBN: 012800617X Category : Technology & Engineering Languages : en Pages : 211
Book Description
Six Chemicals That Changed Agriculture is a scientific look at how the chemicals used in today's food production were developed, evaluated, and came to be in wide-spread use. From fertilizers to pest management, antibiotics to DNA, chemicals have transformed the way our food is grown, protected, and processed. Agriculture is the world's most important environment interaction, the essential human activity, and an increasingly controversial activity because of its use and presumed misuse of chemistry. The major characteristics of US agriculture for at least the last six decades have been rising productivity, declining number of mid-size farms, increasing farm size, an increasing percentage of farm production on fewer, large farms, increasing dependence of chemical technology and more developmental research being done by the agricultural chemical industry rather than by independent land-grant universities. Another equally important feature of modern agriculture is wide-spread suspicion of its technology by the public. The book will recount examples of this suspicion related to specific chemicals and present the essence of the suspicion and its results. Offers an historical analysis of the discovery and development some aspects of the chemistry of modern agriculture Addresses the advantages, disadvantages, desirable and undesirable results of the use of each of the chosen chemicals and compares and contrasts the real and frequently assumed problems of their use Provides valuable insights into the history and application of these focused chemicals, enabling readers to apply the lessons to new agricultural chemical developments
Author: Milton Whitney
Author: Milton Whitney
Author: Milton Whitney
Author: Frank Kenneth Cameron
Author: Harry Snyder
Author: Thomas Barlow Wood
Author: Inamuddin
Author: Joseph Scudder Chamberlain
Author: Mahdi M. Al-Kaisi
Author: M. A. Tabatabai
Author: Robert L Zimdahl