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Author : Alan D Meijer
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (88 download)
Download or read book Long-term Tillage Effects on Soil Erosion, Physical Properties, and Soil Moisture written by Alan D Meijer and published by . This book was released on 2013 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Lal
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251037768
Total Pages : 228 pages
Book Rating : 4.0/5 (377 download)
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
Author : Terry J Logan
Publisher : CRC Press
ISBN 13 : 1351088521
Total Pages : 399 pages
Book Rating : 4.3/5 (51 download)
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 חישובים במספרים מקורבים written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Glinski
Publisher : CRC Press
ISBN 13 : 1351093606
Total Pages : 311 pages
Book Rating : 4.3/5 (51 download)
Download or read book Soil Physical Conditions and Plant Roots written by J. Glinski and published by CRC Press. This book was released on 2018-01-17 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a specialized monograph on soil physical conditions and root-system relations. It attempts to explain the importance of physical properties of soil by showing how they affect root growth and functions; and on the other hand, how roots themselves change their environment. Emphasis is placed on the interactive effects of soil physical factors. An attempt has been made to analyze the possibilities of the root system‘s modification by both soil and plant management.The book is addressed to research workers and advanced students in soil and plant sciences and may also be of interest to agronomists and related specialists.
Author : B.D. Soane
Publisher : Elsevier
ISBN 13 : 0080934005
Total Pages : 695 pages
Book Rating : 4.0/5 (89 download)
Download or read book Soil Compaction in Crop Production written by B.D. Soane and published by Elsevier. This book was released on 2013-10-22 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a global review of the mechanisms, incidence and control measures related to the problems of soil compaction in agriculture, forestry and other cropping systems. Among the disciplines which relate to this subject are soil physics, soil mechanics, vehicle mechanics, agricultural engineering, plant physiology, agronomy, pedology, climatology and economics. The volume will be of great value to soil scientists, agricultural engineers, and all those involved with irrigation, drainage and tillage. It will help to facilitate the exchange of information on current work throughout the world, as well as to promote scientific understanding and stimulate the development, evaluation and adoption of practical solutions to these widespread and urgent problems.
Author : Joshua Albert Budde
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.:/5 (584 download)
Download or read book Evaluating Changes in Soil Physical Properties on Long-term Tillage and Rotation Studies written by Joshua Albert Budde and published by . This book was released on 2004 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Lee Hill
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (118 download)
Download or read book Tillage Effects on Selected Soil Physical Properties written by Robert Lee Hill and published by . This book was released on 1984 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Amin Nouri Gharahassanlou
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (111 download)
Download or read book Long-term Impact of Tillage and Cropping Managements on Soil Hydro-physical Properties and Yield written by Amin Nouri Gharahassanlou and published by . This book was released on 2017 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil physical and hydraulic properties control the major soil functions related to the imbibition, transmission and retention of water, air, heat and nutrients. Adoption of no-tillage in Tennessee through the last decades has considerably decreased the fluvial soil losses. However, the long-term effect of no-tillage on soil hydro-physical properties and its interaction with companion practices such as cover crops and crop sequence has not been fully discovered. In this project, three long-term experiments located in West Tennessee Research and Education Center in Milan and Jackson, TN were studied in 2015 and 2016 for soil hydro-physical properties. The effect of 34 years of tillage, fertilization and cover crop, 15 years of crop rotation on no-tillage with winter fallow and 37 years of a range of tillage intensities and no-tillage with and without cover crop on soil physical properties were assessed. Relationship between soil physical properties were determined and by relating the soil physical properties to corn, cotton and soybean yield and long-term yield stability, the most effective cropping and tillage managements were identified. Long-term no-tillage substantially improved soil aggregation, water infiltration and transmission and cotton yield than conventional tillage. Effect of cover crops on measured soil physical properties were less evident than the effect of no-tillage. However, planting hairy vetch and wheat cover crops improved the soil aggregation and increased the water infiltration and transmission significantly compared with no cover crop. No-tillage planted with hairy vetch cover crop experienced significantly higher quasi-steady and cumulative infiltration compared with the other treatment combinations in both years. Cropping corn, cotton and soybean in double cropping sequences did not favor soil in improved physical quality than monoculture while existence of corn in cropping system either as continuous cropping or in sequence improved soil physical quality. Corn rotated with soybean and cotton increased yield and decreased the long-term variance in soybean yield. Under sub-humid climate of Tennessee with relatively high decomposition rate of organic matter, the magnitude of residue turnover and below-ground root activity was found to be key factors increasing the no-tillage potential for additional improvement in soil quality and yield.
Author : P. W. Unger
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (76 download)
Download or read book Tillage Effects on Soil Physical Properties and Process ; Proceeding written by P. W. Unger and published by . This book was released on 1982 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jan Gliński
Publisher : Springer Science & Business Media
ISBN 13 : 9048135842
Total Pages : 1075 pages
Book Rating : 4.0/5 (481 download)
Download or read book Encyclopedia of Agrophysics written by Jan Gliński and published by Springer Science & Business Media. This book was released on 2011-06-07 with total page 1075 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Encyclopedia of Agrophysics will provide up-to-date information on the physical properties and processes affecting the quality of the environment and plant production. It will be a "first-up" volume which will nicely complement the recently published Encyclopedia of Soil Science, (November 2007) which was published in the same series. In a single authoritative volume a collection of about 250 informative articles and ca 400 glossary terms covering all aspects of agrophysics will be presented. The authors will be renowned specialists in various aspects in agrophysics from a wide variety of countries. Agrophysics is important both for research and practical use not only in agriculture, but also in areas like environmental science, land reclamation, food processing etc. Agrophysics is a relatively new interdisciplinary field closely related to Agrochemistry, Agrobiology, Agroclimatology and Agroecology. Nowadays it has been fully accepted as an agricultural and environmental discipline. As such this Encyclopedia volume will be an indispensable working tool for scientists and practitioners from different disciplines, like agriculture, soil science, geosciences, environmental science, geography, and engineering.
Author : Udaya Karunatilake
Publisher :
ISBN 13 :
Total Pages : 500 pages
Book Rating : 4.E/5 ( download)
Download or read book Tillage-induced Changes in Physical Properties of a Clay Loam and Corn Growth After Conversion from Alfalfa written by Udaya Karunatilake and published by . This book was released on 1996 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mahdi M. Al-Kaisi
Publisher : Academic Press
ISBN 13 : 0128054018
Total Pages : 420 pages
Book Rating : 4.1/5 (28 download)
Download or read book Soil Health and Intensification of Agroecosystems written by Mahdi M. Al-Kaisi and published by Academic Press. This book was released on 2017-03-15 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Mataba Tapela
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (498 download)
Download or read book Tillage Effects on Seedbed Physical Properties written by Mataba Tapela and published by . This book was released on 2001 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intensive tillage requires high energy input and may be detrimental to the environment. There is a need to develop decision support tools to assist farmers in determining optimum tillage intensity for high yields. Previous studies developed quantitative indices that related tilth conditions to yield. The indices, however, proved to be inadequate and sometimes inconsistent. Thus, a three-part research project was carried out from 1998 to 2000 to quantify seedbed condition following tillage and to explain subsequent variation in corn (Zea mays L) yield. Conventional and spatial statistics were used to study the effects of bulk density, penetration resistance and soil moisture content on and biomass at the V2 growth stage (the corn growth stage when the collar of the second leaf has fully developed), and grain yield. A soil condition index was developed and it combined soil physical properties into a single value that was related to yield using regression methods. The soil condition index gave promising results for prediction of early season plant biomass, but was not helpful in predicting grain yield. Confounding of weather conditions made it difficult to determine the true functional relationship between soil tilth and crop yield. Yield and soil map overlays revealed spatial patterns that would have otherwise been aggregated' if only conventional statistical methods were used. With careful experimental design, the impact of weather and other sources of experimental error in tillage trials could be minimized. The research project provided a framework for future experiments focused on quantifying soil tilth.
Author : John Frazeur Moncrief
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.:/5 (89 download)
Download or read book The Effect of Tillage on Soil Physical Properties and the Availability of Nitrogen, Phosphorus and Potassium to Corn (Zea Mays L.) written by John Frazeur Moncrief and published by . This book was released on 1981 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Prabhakar Singh
Publisher :
ISBN 13 :
Total Pages : 85 pages
Book Rating : 4.:/5 (31 download)
Download or read book Modeling Effects of Contrasting Tillage and Management on Hydrological Processes in Selected Soils of the Pacific Northwest US written by Prabhakar Singh and published by . This book was released on 2008 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Society of agronomy
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (97 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Process written by American Society of agronomy and published by . This book was released on 1985 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
