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Author : Annette Larue Hanson
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (136 download)
Download or read book Crop and Tillage Management Effects on Soil Physical Properties written by Annette Larue Hanson and published by . This book was released on 1984 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. L. Hatfield
Publisher : CRC Press
ISBN 13 : 1351079697
Total Pages : 230 pages
Book Rating : 4.3/5 (51 download)
Download or read book Crops Residue Management written by J. L. Hatfield and published by CRC Press. This book was released on 2018-01-18 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent changes in the Conservation Compliance Plans for farmers shows the need for improved information on the effective management of crop residues. Residue management requires an understanding of the crop, soil, and climate in which the farming system is located. In this volume, the strategies for effective residue management are described for each region of the country to provide a comparison of the regional differences. The chapters not only describe the knowledge in each region but also suggest some of the needed areas of research required to develop an improved understanding of the processes involved in effective residue management.
Author : Regan Sankwasa Mwazi
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (282 download)
Download or read book Tillage and Traffic Effects on Soil Physical Properties and Crop Rooting written by Regan Sankwasa Mwazi and published by . This book was released on 1992 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sterling Robertson Olsen
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (31 download)
Download or read book Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate written by Sterling Robertson Olsen and published by . This book was released on 1954 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Samuel Idoko Haruna
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.:/5 (125 download)
Download or read book Influence of Cover Crop and Tillage Management Practices on Soil Physical and Hydraulic Properties written by Samuel Idoko Haruna and published by . This book was released on 2017 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several agricultural land management practices, such as cover crops and tillage, can influence soil physical and hydraulic properties, soil health indicators and crop productivity. This study evaluated the influence of cover crops, tillage and perennial biofuel crops on soil physical and hydraulic properties. The objectives of this study included: (i) evaluate hydraulic properties for soils managed by cover crops and tillage, (ii) assess the influence of cover crops and tillage management on in situ water infiltration parameters, and (iii) evaluate thermal conductivity ([Lambda]), volumetric heat capacity (C[subscript v]) and thermal diffusivity (D) for soils managed by perennial biofuel and cover crops. Two field sites were used for the study; the first and second objectives were conducted at Lincoln University's Freeman Research Center while the third objective was conducted at University of Missouri Bradford Research Center. The cover crop grown at Freeman Research Center was Cereal rye (Secale cereal L.), while Cereal rye, Hairy vetch (Vicia villosa subsp. villosa) and Austrian winter pea (Pisum sativum subsp. arvense) were grown at Bradford Research Center. The perennial biofuel crops at Bradford Research Center included giant miscanthus (Miscanthus x gigantus J.M. Geef & Deuter ex Hodkinson & Renvoize) and switchgrass (Panicum vergatum L.). The tillage treatments at Freeman Research Center included tillage using a moldboard plow to a depth of 15 cm and no-till. The soil at Bradford Research Center was managed with no-till. Intact soil samples (76 by 76 mm) were collected for objectives one and three with samples taken in 2014 and 2015, respectively. Infiltrometers were used to measure infiltration rates for objective two during 2014 and 2015. The physically-based Parlange and Green-Ampt infiltration models were fit to estimate saturated hydraulic conductivity (K[subscript s]) and sorptivity (S) parameters. Results showed that bulk density values for tillage were 13% lower compared with no-till management right after tillage. At the 0-10 cm soil depth, water content was significantly higher at the 0.0 and -0.4 kPa pressures for tillage compared with no-till management, right after spring tillage. However, this effect did not persist over time probably due to soil consolidation after some rainfall events. Tillage improved coarse mesopores by 32% compared with no-till; and this effect resulted in 87% higher saturated hydraulic conductivity values in tillage compared with no-till management, right after spring tillage. Cover crops improved macropores by 24% compared with no cover crop; this can potentially increase water infiltration and reduce runoff. As a result of higher macroporosity, saturated hydraulic conductivity was higher in the cover crop compared with no cover crop management. This study demonstrated that the effects of tillage in improving some soil hydraulic properties may not persist over time. The Parlange and Green-Ampt model appeared to fit measured infiltration data well with coefficient of variation (r[superscript 2]) ranging from 0.92 to 0.99. The K[subscript s] parameter value estimated from the Parlange and Green-Ampt models in 2014 were 42% and 54% higher in no-till compared with tillage management, respectively. In 2015, the S parameter values estimated from the Parlange and Green-Ampt models were 82% and 90% higher in cover crop management compared to no cover crop management, respectively. This study showed that cover crops can improve water infiltration and may reduce water and nutrient runoff which can lead to enhanced agricultural productivity. Results of the third objective showed that perennial biofuel crops (giant miscanthus and switchgrass) had 11% higher C[subscript v] at saturation compared to row crops (cover crops and no cover crops). Cover crops compared to no cover crop had 18% higher volumetric water content at saturation and 26% higher soil organic carbon; this led to 13% higher C[subscript v] compared to no cover crops. Row crops had significantly higher [Lambda] and D compared to perennial biofuel crops. This study showed that perennial biofuel and cover crops can change soil thermal properties by reducing [Lambda] and D and increasing C[subscript v]; this indicates that these management systems can improve the ability of the soil to buffer against rapid heat change and better handle a more variable climate. Results from these studies showed that tillage may influence some soil properties temporarily; however, these influences may diminish over time. Cover crops can improve soil physical and hydraulic properties and soil health indicators and this can lead to improved productivity. However, longer-term studies are needed to evaluate these effects over time, especially with an increasingly changing climate.
Author : Frédéric Antoine Dadoun
Publisher :
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.3/5 (129 download)
Download or read book Modelling Tillage Effects on Soil Physical Properties and Maize (Zea Mays, L.) Development and Growth written by Frédéric Antoine Dadoun and published by . This book was released on 1993 with total page 432 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 : K. J. Coughlan
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.E/5 ( download)
Download or read book Effects of Management Practices on Soil Physical Properties written by K. J. Coughlan and published by . This book was released on 1990 with total page 338 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 : Andy Clark
Publisher : DIANE Publishing
ISBN 13 : 1437903797
Total Pages : 248 pages
Book Rating : 4.4/5 (379 download)
Download or read book Managing Cover Crops Profitably (3rd Ed. ) written by Andy Clark and published by DIANE Publishing. This book was released on 2008-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Author : Ronald E. Phillips
Publisher : Springer Science & Business Media
ISBN 13 : 1468414674
Total Pages : 244 pages
Book Rating : 4.4/5 (684 download)
Download or read book No-Tillage Agriculture written by Ronald E. Phillips and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: No-tillage cropping systems and concepts have evolved rapidly since the early 1960s and are attracting attention worldwide. The rapid growth and interest is associated with increasing pressures for food production from a fixed land resource base with degrading effects of erosion, soil compaction and other factors becoming more noticeable. Research programs have provided many answers and identified new technology needed for success of the no-tillage crop production system in the past two decades and this has resulted in a rapid rate of adoption. Farmers played an important role in the early stages· of development of the system and continue to play an important role in its improvement and rapid rate of adoption. This book provides an inventory and assessment of the principles involved in no-tillage concepts and addresses the application of the technology to practical production schemes. Selected authors and contributors have long been associated either in no-tillage research or application. They represent many disciplines interfacing with the complex interactions of soil, plant and environment. Personal obser vations by the authors in many geographic sectors of the world indicate the principles to be valid but application of the principles to be less uniform. The application of no-tillage principles requires considerable modification as variations in soil and/or climatic condi tions are encountered in different regions of the world.
Author : S. Saha
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (65 download)
Download or read book Tillage and Residue Management Effect on Soil Physical Properties and Crop Productivity in Maize-mustard Cropping Sequence written by S. Saha and published by . This book was released on 2007 with total page 42 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 : Abdullahi Abdurahman Abdi
Publisher :
ISBN 13 :
Total Pages : 314 pages
Book Rating : 4.:/5 (229 download)
Download or read book Effect of Tillage on Soil Physical Properties and Crop Production written by Abdullahi Abdurahman Abdi and published by . This book was released on 1989 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jerry L. Hatfield
Publisher : John Wiley & Sons
ISBN 13 : 0891188533
Total Pages : 432 pages
Book Rating : 4.8/5 (911 download)
Download or read book Soil Management written by Jerry L. Hatfield and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Degradation of soils continues at a pace that will eventually create a local, regional, or even global crisis when diminished soil resources collide with increasing climate variation. It's not too late to restore our soils to a more productive state by rediscovering the value of soil management, building on our well-established and ever-expanding scientific understanding of soils. Soil management concepts have been in place since the cultivation of crops, but we need to rediscover the principles that are linked together in effective soil management. This book is unique because of its treatment of soil management based on principles—the physical, chemical, and biological processes and how together they form the foundation for soil management processes that range from tillage to nutrient management. Whether new to soil science or needing a concise reference, readers will benefit from this book's ability to integrate the science of soils with management issues and long-term conservation efforts.
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 : 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.
