Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Modeling The Effects Of Saline Groundwater And Irrigation Water On Root Zone Salinity And Sodicity Dynamics In Agro Ecosystems PDF full book. Access full book title Modeling The Effects Of Saline Groundwater And Irrigation Water On Root Zone Salinity And Sodicity Dynamics In Agro Ecosystems.
| Author | : Syed Hamid Hussain Shah |
| Publisher | : |
| Total Pages | : 201 |
| Release | : 2013 |
| Genre | : |
| ISBN | : 9789461735256 |
| Author | : E. Bresler |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 248 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 364268324X |
In keeping with the spirit of an Advanced Series in the Agricultural Sciences, we have attempted to address herein most of the current research areas being used to characterize, describe and manage salt-affected soils. Because of a certain amount of personal bias inherent in our individual viewpoints and backgrounds, some areas have been accorded more emphasis than others. It has been our goal, however, to provide either detail about, or at least a recent reference to, each major area of current soil salinity research. This information, coupled with what we hope to be a rather logical progression from descriptive material on equilibrium or near-equilibrium soil chemistry, through transport processes, to eventual management practices including some elementary economic decisions, should enable the reader to bridge the gap from introductory soil chemistry or soil physics texts to the basic literature of this area. The text will be perceived by the astute reader as somewhat uneven in its treatment of respective sections. We feel that this is to a certain extent appropriate, for it thus portrays the unevenness of progress to date in the corresponding areas of research. The management of saline and sodic soils remains largely an empirical semi-science or even art, whereas transport phenomena are normally dealt with in a much more theoretical (and also a much more highly mathematical) vein. Equilibrium soil chemistry has historically occupied an intermediate position with respect to its mix of empiricism and theoretical rigor.
| Author | : Shabbir A. Shahid |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 827 |
| Release | : 2013-01-15 |
| Genre | : Nature |
| ISBN | : 9400756844 |
The papers assembled here cover topics such as technological advances in soil salinity mapping and monitoring, management and reclamation of salt-affected soils, use of marginal quality water for crop production, salt-tolerance mechanisms in plants, biosaline agriculture and agroforestry, microbiological interventions for marginal soils, opportunities and challenges in using marginal waters, and soil and water management in irrigated agriculture.
| Author | : |
| Publisher | : IWMI |
| Total Pages | : 40 |
| Release | : |
| Genre | : |
| ISBN | : |
| Author | : |
| Publisher | : UCANR Publications |
| Total Pages | : 9 |
| Release | : 2002 |
| Genre | : Irrigation water |
| ISBN | : 1601072449 |
This is reference sheet 9.10 in the Farm Water Quality Planning series. All irrigation water contains dissolved mineral salts, and these can have a profound effect on crop performance. This publication helps you understand the basics of this relationship.
| Author | : Mohammad Zaman |
| Publisher | : Springer |
| Total Pages | : 164 |
| Release | : 2018-11-28 |
| Genre | : Nature |
| ISBN | : 331996190X |
This open access book is an outcome of the collaboration between the Soil and Water Management & Crop Nutrition Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Department of Nuclear Sciences and Applications, International Atomic Energy Agency (IAEA), Vienna, Austria, and Dr. Shabbir A Shahid, Senior Salinity Management Expert, Freelancer based in United Arab Emirates.The objective of this book is to develop protocols for salinity and sodicity assessment and develop mitigation and adaptation measures to use saline and sodic soils sustainably. The focus is on important issues related to salinity and sodicity and to describe these in an easy and user friendly way. The information has been compiled from the latest published literature and from the authors’ publications specific to the subject matter. The book consists of six chapters. Chapter 1 introduces the terms salinity and sodicity and describes various salinity classification systems commonly used around the world. Chapter 2 reviews global distribution of salinization and socioeconomic aspects related to salinity and crop production. Chapters 3 covers comprehensively salinity and sodicity adaptation and mitigation options including physical, chemical, hydrological and biological methods. Chapter 4 discusses the efforts that have been made to demonstrate the development of soil salinity zones under different irrigation systems. Chapter 5 discusses the quality of irrigation water, boron toxicity and relative tolerance to boron, the effects of chlorides on crops. Chapter 6 introduces the role of nuclear techniques in saline agriculture.
| Author | : Dan Yaron |
| Publisher | : CRC Press |
| Total Pages | : 448 |
| Release | : 1981-02-01 |
| Genre | : Science |
| ISBN | : 9780824767419 |
The salinity problem in irrigation:an introductory review; evaluation and classification of water quality for irrigation;effescts of salinity and soil water regime on crop yelds; irrigation and soil salinity; fertilization and salinity;impact of irrigation on the quality of groundwater and river flows; economic evaluation of irrigation with saline water withim the framework of farm,Economic impacts of regional economic effects of changes in irrigation water salinity within a river basin framework; the case of the colorado river.
| Author | : I. Shainberg |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 358 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 3642698360 |
The importance of irrigation in the world's agriculture is rapidly increasing. Although it is practised on a large scale mainly in arid and semi-arid zones, supplementary irrigation is becoming popular in semi-humid regions as well. The record of irrigation speaks for itself in terms of increased crop production. However, the question remains as to how permanent the achievement may be. Judging from history, it seems that irrigation eventually failed in many regions because the knowledge and technology available to society at the time were incapable of coping with the problems created. Undoubtedly soil salinity is the most prevalent and widespread problem limiting crop productivity in irrigated agriculture. It has, therefore, attracted the attention of the scientific community since the advent of modern agronomic research. Through the past six to seven decades a considerable body of information has been accumulated, which has promoted the understanding of the principles involved and helped to develop the technology for coping with the problems. Our present knowledge, if judiciously applied, is adequate for coping with many of the salinity problems resulting from mismanagement of irrigation and drainage. But for this knowledge to be used, it has to be generally known and understood and be re-examined from time to time.
| Author | : Water Quality Technical Committee of the Irrigation and Drainage Council of the Environmental and Water Resources Institute of ASCE |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2012 |
| Genre | : Agricultural ecology |
| ISBN | : 9780784476482 |
Abstract: Prepared by the Water Quality and Drainage Committee of the Irrigation and Drainage Council of the Environmental and Water Resources Institute of ASCE. Agricultural Salinity Assessment and Management, second edition, considers worldwide salinity and trace element management in irrigated agriculture and water supplies. This updated edition provides a reference to help sustain irrigated agriculture and integrates contemporary concepts and management practices. It covers technical and scientific aspects of agricultural salinity management, as well as environmental, economic, and legal concerns. Topics include: nature and extent of agricultural salinity; diagnosis of salinity problems and selection of control practices; soil response to saline and sodic conditions; plant responses to saline and sodic conditions; long-term regional-scale modeling of soil salinity; case study of San Joaquin Valley, California; institutional and salinity issues on the Upper Rio Grande; and viability of irrigated agriculture with expanding space and time. The second edition of MOP 71 is valuable to water professionals, engineers, scientists, practitioners, and educators interested in developing and managing ever more constrained water supplies worldwide
| Author | : Muhammad Mazhar Saeed |
| Publisher | : IWMI |
| Total Pages | : 54 |
| Release | : 2001 |
| Genre | : Irrigation water |
| ISBN | : 9290904747 |
In the short water supply environment of Pakistan, farmers try to minimize the gap between demand and supply of canal water extracting groundwater for irrigation purposes. However, saline groundwater upconing may occur in response to fresh groundwater withdrawals from unconfined aquifer underlain by salty groundwater. Skimming well technology can help controlling this upconing phenomenon. However, in most cases, the small discharges of such wells cannot be efficiently applied on surface irrigated croplands. Pressurized irrigation application systems use small discharge effectively, but the cost and availability of equipment in the local market is a significant constraint. Root zone salinity is also expected to increase if this skimmed groundwater is used for irrigation purposes, particularly in the absence of proper salinity management practices. To address these issues, International Water Management Institute (IWMI), and Water Resource Research Institute (WRRI) of National Agricultural Research Centre (NARC), Mona Reclamation Experimental Project (MREP) of Water and Power Development Authority (WAPDA) are collaborating to undertake an applied research under the Project, Root Zone Salinity Management Using Fractional Skimming Wells with Pressurized Irrigation.
