Crop Rotation and Tillage Experiments at the San Antonio (Texas) Field Station (Classic Reprint) PDF Download
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Author: George Thomas Ratliffe
Publisher: Forgotten Books
ISBN: 9780364866917
Category :
Languages : en
Pages : 46
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Excerpt from Crop Rotation and Tillage Experiments at the San Antonio (Texas) Field Station The climate of the region fluctuates from humid to semiarid. Droughts of many weeks' duration may occur at any season of the year, but they are more common during the summer months. The mean rainfall for the period 1907 to 1929 was inches as measured at the field station. If properly distributed, this precipitation would insure fair crop production, yet the irregular manner in which it occurs makes crop production uncertain. The rainfall has ranged from a minimum of 13. 14 inches in 1909 to a maximum of 47. 63 inches in 1919. Table 1 shows the record of rainfall by months for the period 1907 to 1929. 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: George Thomas Ratliffe
Publisher: Forgotten Books
ISBN: 9780364866917
Category :
Languages : en
Pages : 46
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Book Description
Excerpt from Crop Rotation and Tillage Experiments at the San Antonio (Texas) Field Station The climate of the region fluctuates from humid to semiarid. Droughts of many weeks' duration may occur at any season of the year, but they are more common during the summer months. The mean rainfall for the period 1907 to 1929 was inches as measured at the field station. If properly distributed, this precipitation would insure fair crop production, yet the irregular manner in which it occurs makes crop production uncertain. The rainfall has ranged from a minimum of 13. 14 inches in 1909 to a maximum of 47. 63 inches in 1919. Table 1 shows the record of rainfall by months for the period 1907 to 1929. 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: Walter M. Osborn
Publisher: Forgotten Books
ISBN: 9780332621500
Category : Business & Economics
Languages : en
Pages : 66
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Excerpt from Crop Rotation, Tillage, and Fertility Experiments at the Lawton (Okla.) Field Station, 1917-49 By W. M. Osborn, formerly associate agronomist, and O. R. Mathews, senior agronomist, Soil and Water Conservation Research Branch, Agricultural Research. 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: Walter M. Osborn
Publisher:
ISBN:
Category : Crop rotation
Languages : en
Pages : 750
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Author: W. M. Osborn
Publisher:
ISBN:
Category :
Languages : en
Pages : 58
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Book Description
Author: Walter M. Osborn
Publisher:
ISBN:
Category : Crop rotation
Languages : en
Pages : 58
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Author: Joseph Benjamin Kuska
Publisher: Forgotten Books
ISBN: 9780260924407
Category :
Languages : en
Pages : 96
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Excerpt from Dryland Crop-Rotation and Tillage Experiments at the Colby (Kans.) Branch Experiment Station Great Plains of northwestern Kansas, southwestern Nebraska, and east central Colorado. The native sod of this area consists mainly of buffalo and grama grasses. Winter wheat is the principal crop, occupying a larger acreage than all other crops together. This is also the main barley-producing sec tion of the State. Until recently, corn was grown fairly extensively, but it is being largely replaced by grain sorghums of the combine type. Forage sorghums are grown on a limited acreage on most farms, mainly for roughage. The soil is of the Chestnut group, now classed as Sherman silt loam, though formerly classed as Colby silt loam. It is representative of the prevailing types of this region. The surface soil (0 to 7 inches) is a brown silt loam with about 60 percent of silt, 14 percent of very fine sand, and 25 percent of clay.2 A buried soil, much blacker in. Color than the present surface soil, occurs over the area ranging in depth from almost at the surface to 3 to 4 feet below the surface. On the station its depth below the surface is about 2 feet. Where the surface soil merges into the subsoil, there is a compact layer of heavy silt loam ranging in thickness from about 2 to 8 inches. This layer contains varying quantities of carbonate concretions. Be low this is the parent material which is a loose, mealy, unaltered loess that extends to a depth of many feet. 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: U.S. Dept. of Agriculture. Bureau of Plant Industry
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Theodore Clinton McIlvaine
Publisher: Forgotten Books
ISBN: 9780365924548
Category : Business & Economics
Languages : en
Pages : 38
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Excerpt from Crop Rotation Experiments in the Ohio Valley (1925-1936) For centuries men have recommended the practice of alter nating crops systematically. Early agriculturists noted that the practice led to increased yields. Such increases have been found to be due in part to better control Of weeds, insects, and diseases and to better utilization of plant nutrients. It is known, too, that certain rotations will aid in maintaining the supply Of organic matter and nitrogen in the soil and will lessen erosion. However, not all systems of crop rotation are equally desirable. Some rotations may actually bring about soil depletion almost as rapidly as continuous cropping with the same crop, whereas other systems may maintain satisfactory yields with minimum applications Of fertilizer. 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: National Research Council
Publisher: National Academies Press
ISBN: 0309045789
Category : Technology & Engineering
Languages : en
Pages : 456
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Book Description
Interest is growing in sustainable agriculture, which involves the use of productive and profitable farming practices that take advantage of natural biological processes to conserve resources, reduce inputs, protect the environment, and enhance public health. Continuing research is helping to demonstrate the ways that many factorsâ€"economics, biology, policy, and traditionâ€"interact in sustainable agriculture systems. This book contains the proceedings of a workshop on the findings of a broad range of research projects funded by the U.S. Department of Agriculture. The areas of study, such as integrated pest management, alternative cropping and tillage systems, and comparisons with more conventional approaches, are essential to developing and adopting profitable and sustainable farming systems.
Author: Soil Science Society of America
Publisher:
ISBN:
Category : Soil science
Languages : en
Pages : 1000
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