Download or read book The Relation of Subsurface Tillage to Soil Moisture Nitrification and Soil Aggregation and the Relation of Microorganic Population to Soil Aggregation Classic Reprint written by Erich Beaumont Fowler and published by Forgotten Books. This book was released on 2018-01-09 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Relation of Subsurface Tillage to Soil Moisture, Nitrification, and Soil Aggregation, and the Relation of Microorganic Population to Soil Aggregation Mik(1930)mmmtmntomtntmhuuducmrtm cover, mttiswtwm, npodallyinto-woom. M omelnsionhthntthompondodpuucluinmmrtnmtmbmoom murmtatthnmtmandudthopornmflicunuytomoomtorm mammmmnuoxampuonmmmnzmm sons. Rmmmwmttbmwottwtutmwcbnrb Wmmmmmmmn'umzumnwwmmnaw Manumtmaonmtflo. 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 Relation of Subsurface Tillage to Soil Moisture Nitrification and Soil Aggregation and the Relation of Micro organic Population to Soil Aggregation written by Eric Beaumont Fowler and published by . This book was released on 1944 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Tillage and Soil Properties on Soil Organic Matter Fractions and Dynamics in Soils from New York and Brazil written by Alexandre Nunes Cardoso and published by . This book was released on 2000 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of physical fractionation procedures along with the study of soil aggregation has advanced the understanding of SOM protection mechanisms. In this study, tillage and soil aggregation were evaluated as controllinbg factors of SOM dynamics. This was done through the use of physical fractionation procedures and the natural 13C abaundance technique in soils contrasting in mineralogy and texture.
Download or read book Tillage Systems in the Tropics written by R. Lal and published by Food & Agriculture Org.. This book was released on 1995 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this Bulletin are to collate up-to-date information on soil tillage requirements for soils in the tropics; to assess the impacts of different ways of tillage on soil, environment and crop productivity; and to outline criteria for developing environment-friendly and economically viable tillage techniques for sustainable use of soil and water resources
Download or read book Soil Tillage in Agroecosystems written by Adel El Titi and published by CRC Press. This book was released on 2002-12-26 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil tillage is, and will remain, the guiding component of soil management and consequently has far-reaching implications for agroecosystems. Understanding structures and functions of soil ecosystems under different tillage/no tillage practices is an essential requirement for any future farming concepts. Soil Tillage in Agroecosystems emphasizes th
Download or read book Effects of Tillage Systems on Nitrate nitrogen Accumulation and Soil Structure written by Abdulkadir Avcin and published by . This book was released on 1988 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of different tillage systems on nitrate-nitrogen accumulation in a 120 cm profile and on soil structure in the top 30 cm of the profile were studied under a fallow-wheat rotation. Treatment effects on nitrate-nitrogen, soil moisture and soil aggregation were measured. Fallow tillage treatments consisting of bare fallow, stubble-mulch and no-till were established on the trial plots. Bare fallow, stubble-mulch, and no-till tillage treatments had no significant effect on nitrate-nitrogen accumulation. However, the fact that nitrate-nitrogen accumulated at the end of fallow was several times higher than in the beginning of the fallow has great importance in terms of fertilizer application. Adequate moisture and temperature favored nitrate-nitrogen accumulation in the tillage plots during the fallow. The 0-10 cm soil layer appeared to be the accumulation zone in the three tillage systems. Effects of tillage treatments on soil structure were investigated through evaluation of aggregate size distribution and water stability. In the 0-10 cm soil layer, the aggregates larger than 0.84 mm, considered to be a good indicator of soil resistance to wind erosion, were more prevalent in bare fallow than in the other two treatments. The percentage of aggregates in the 2-4.75 mm range showed similar distribution patterns among the treatments. The 0-10 cm soil layer is disturbed every other fallow cycle in the bare fallow and every fallow cycle in the stubble-mulch. In notill, the 0-10 cm soil layer is disturbed only at planting. As a result, more destructive action of no-till and stubble-mulch may be reason for these differences. It should be noted that in no-till the soil is pulverized enough during seeding to favor low aggregation and stability.
Download or read book Optimizing Soil Moisture for Plant Production written by T. F. Shaxson and published by Food & Agriculture Org.. This book was released on 2003 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication discusses the processes above, within and below the soil that enable water to move and crops to grow, and is intended to help land users make better use and take better care of these basic resources. It aims to provide a solid basis for sound, sustainable soil moisture management. This document has been made more user-friendly by presenting a guide for field workers with activities, exercises and discussion topics in non-technical language, and by interspersing the text with illustrations and diagrams. The complete materials of this guide are included on the CD-ROM that accompanies this document
Download or read book Effect of Two Methods of Tillage on Soil Physical Properties and Corn Yields written by Raymond William Wengel and published by . This book was released on 1967 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tillage in Its Relation to Soil Moisture written by C. C. Thom and published by . This book was released on 1909 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Tillage on Soil and Moisture Conservation and on Crop Yields at Langdon and Edgeley and at Other Points in North Dakota written by Carl Louis Englehorn and published by . This book was released on 1946 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Aggregate Size Distribution and Water Infiltration Under Three Conservation Tillage Systems written by Manuel Oliveira and published by . This book was released on 1981 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Save Your Soil written by United States. Soil Conservation Service and published by . This book was released on 1941 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects Conservation Tillage On Ground Water Quality written by Terry J Logan and published by CRC Press. This book was released on 2018-01-18 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays the environmental sustainability of the cropping systems is increasingly requested by the consumers. Conventional tillage practices, totally turning over the soil between the vineyard rows, may cause erosion due to rain as well as structure destruction of the soil in the long term. Conservation tillage is a soil management technique, poorly widespread in Sardinia, allowing cover cropping between vineyard rows. Furthermore, this technique makes the canopy development control of herbage possible by cutting it up during specific phenological phases. Conservation tillage usually involves direct benefits to farmers such as increasing soil fertility as well as reductionof tillage costs, soil erosion and carbon dioxide (CO2) emissions in the atmosphere. This long term trial, during at least five years aims to assess the conservation tillage impact on chemical-physical soil characteristics in comparison with traditional tillage by evaluating the change of organic matter, C.E.C. and availability of major plant nutrients in the soil and to estimate their probable rise. The field plots are located in a 35% slope condition vineyard, showing massive erosion problem and organic matter low content. A split/plot design with four replications was set up, with the comparison between conservation and traditional tillage apart as main plots. Moreover, the effects of two different irrigation levels were evaluated in the subplots of each main plot. At the beginning of the trial (2011) a pedological survey was made. Three soil profiles were described and sampled along the field slope and soil sampling in each plot were made both to characterize the soil and to find the zero point. The soil chemical and physical characteristics were monitored through a second soil sampling made at the end of 2013. Conservation tillage caused increasing organic matter content and C.E.C. values. As for major plant nutrients in soil, results were more uncertain. Grapevine yield and quality parameters did not show any negative effect when passing from conventional to conservation tillage techniques. The trial provided a preliminary positive evaluation of conservation tillage. However, more years are required to confirm this trend.
Download or read book Subsoil Management Techniques written by Bobby A. Stewart and published by CRC Press. This book was released on 1994-10-12 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principles and practice of deep tillage techniques have often failed to provide long-term, sustainable improvements of the soil for crop production. The book reviews alternative approaches to overcoming subsoil problems. These approaches involve reduced disturbance of the soil, but still provide substantial and sustainable soil improvements. Chapters 1 through 4 discuss the use of minimum tillage, bed farming, mole drainage, and slotting to overcome adverse subsoil conditions. Chapter 5 examines the options available for management of subsoil acidity. The next chapter provides an understanding of the processes involved in stress transmission and compaction under farm trafficking. The last chapter explains the critical role of soil microorganisms in providing long-term biological stabilization and improvements of soil. This reference brings together the latest research information on these subsoil amelioration techniques.
Download or read book Effects of Contour Tillage on Soil Loss Aggregation Organic Matter and Certain Plant Nutrients written by Shantilal Premchand Bhagat and published by . This book was released on 1951 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Conditions and Plant Growth written by Edward John Russell and published by . This book was released on 1917 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reducing Soil Water Evaporation with Tillage and Straw Mulching written by S. K. Jalota and published by Wiley-Blackwell. This book was released on 1999-05-12 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: As more and more people compete for ever-less water on our shrinking planet, the problem of soil evaporation becomes increasingly urgent. In this book two of the world's most distinguished specialists in the field offer an expert yet highly readable account of both the problem and potential solutions. Drawing on the work of agronomists, soil scientists, and meteorologists, the authors provide a clear overview of the theories and data that explain the process of evaporation from free water and soils that are bare, tilled, or residue-covered. In a discussion of the benefits of tillage in reducing evaporation, they consider different types of soil and the merits of post drying depth-distribution of soil water in treated and untreated soil. Straw mulching, as another means of reducing evaporation, receives the same extended treatment, followed by an appraisal of the effects of different combinations of tillage and mulching on evaporation and water use during fallow and cropped periods. Addressing a pressing issue in a thorough and objective fashion, this book will assist future decision makers about water conservation management in different climates, under various conditions
