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Author: L. V. Wilcox
Publisher:
Published: 1958
Total Pages: 8
ISBN-13:
DOWNLOAD EBOOK →The purposes of this publication are: (1) to describe the characteristics of an irrigation water that determine its quality; (2) to indicate the type of water analysis that is required; (3) to show how to judge quality from the water analysis.
Author: Mohammad Zaman
Publisher: Springer
Published: 2018-11-28
Total Pages: 164
ISBN-13: 331996190X
DOWNLOAD EBOOK →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: R. S. Ayers
Publisher:
Published: 1985
Total Pages: 196
ISBN-13:
DOWNLOAD EBOOK →Richtlijnen voor de werker in het veld om problemen te ondervangen ten aanzien van de waterkwaliteit voor irrigatie-doeleinden. Tenslotte worden praktijkervaringen uit diverse gebieden vermeld
Author: Robert Carrow
Publisher: CRC Press
Published: 2008-12-17
Total Pages: 496
ISBN-13: 1420081942
DOWNLOAD EBOOK →With the increased use of alternative irrigation water sources on turfgrass and landscape sites, their management is becoming more complex and whole ecosystems-oriented. Yet few turfgrass managers have received formal training in the intricacies of irrigation water. Turfgrass and Landscape Irrigation Water Quality: Assessment and Management provide
Author: Leon Bernstein
Publisher:
Published: 1967
Total Pages: 15
ISBN-13:
DOWNLOAD EBOOK →New formulas are proposed for quantitatively assessing irrigation water quality. Except for extremely unsuitable waters, irrigation water quality can be assessed only in the context of the conditions under which the water is to be used. These conditions include the infiltration rate of the soil (I), the evapotranspiration rate (E), the irrigation frequency and duration (tc and ti, respectively) the net downward drainage rate below the root zone (O) and the maximum permissible salinity and chloride concentration for the crop to be grown (ECd and Cld, respectively). When drainage is non-limiting, the potential leaching fraction (LF) is given by: LF = 1 - (Etc/Iti) and when drainage is limiting by: LF = O/(E + O). The maximum permissible EC and Cl concentration of irrigation waters (ECi and Cli, respectively) are calculated from: ECi = LF x ECd and Cli = LF x Cld. Potential leaching fraction calculations will also be useful for estimating CaCO3 precipitation, and the degree to which specific toxic materials will be concentrated as water is evapotranspired.
Author: Marinus G. Bos
Publisher: Springer Science & Business Media
Published: 2008-11-23
Total Pages: 186
ISBN-13: 1402089481
DOWNLOAD EBOOK →Irrigated agriculture produces about 40% of all food and fibre on about 16% of all cropped land. As such, irrigated agriculture is a productive user of resources; both in terms of yield per cropped area and in yield per volume of water consumed. Many irrigation projects, however, use (divert or withdraw) much more water than consumed by the crop. The non-consumed fraction of the water may cause a variety of undesirable effects ranging from water-logging and salinity within the irrigated area to downstram water pollution. This book discusses all components of the water balance of an irrigated area; evapotranspiration (Ch.2), effective precipitation (Ch.3) and capillary rise from the groundwater table (Ch.4). Chapter 5 then combines all components into a water management strategy that balances actual evapotranspiration (and thus crop yield) with the groundwater balance of the irrigated area (for a substainable environment). Chapter 6 presents CRIWAR 3.0, a simulation program that combines all water balance components into a single simulation procedure. The chapter describes the use of the CRIWAR software for developing water requirement tables and other useful information based on the selected water management strategy. This version greatly expands upon the capabilities of previously published programs.
Author: Ranbir Chhabra
Publisher: Springer Nature
Published: 2022-01-01
Total Pages: 729
ISBN-13: 3030784355
DOWNLOAD EBOOK →This book presents systematic scientific appraisal, classification, genesis and viable technologies for reclamation and management of salt-affected soils and marginal quality waters across India and several other countries. Nature, solubility and geo-chemical mobility of salts have been provided as basis for the development of alkali and saline soils and groundwaters under specific agro-hydro-ecological regions. Chemical amendment (gypsum) based reclamation technology of alkali soils and related pre and post-reclamation water, nutrient and crop management interventions, including re-sodification issues have been comprehensively addressed. Features and operational guidelines of surface, subsurface, vertical and bio-drainage systems have been thoroughly discussed; likewise, amelioration of irrigation induced saline soils in inland and coastal regions and preventive measures for control of salinity and waterlogging along with environmental trade-offs. Practical approaches for amelioration and judicious use of saline, alkali, high SAR- saline and waste waters have been synthesized for different cropping and agro- forestry systems. Emerging issues on use of industrial by-products as amendments for alkali soils, physiological aspects of salt resistance, anatomical and biochemical mechanism of submergence tolerance, specific ion effects of poor quality waters, crop diversification, groundwater recharge, rejuvenation of tsunami affected coastal soils, safety against occurrence of poisonous gas in tube well pits, paddy straw burning and others have been adequately deliberated upon. Combining scientific principles with field experiences, the book is expected to serve as a useful knowledge base for research workers, teachers and students of soil science, agronomy, plant breeding, forestry, irrigation engineering, extension workers, environmentalists and planners associated with reclamation and management of salt affected soils and waters on sustainable basis in developing and developed countries.
Author: K.K. Tanji
Publisher: Scientific Publishers
Published: 2012
Total Pages: 634
ISBN-13: 9388812832
DOWNLOAD EBOOK →Author: University of California. Committee on Irrigation Water Quality Standards
Publisher:
Published: 1963
Total Pages: 58
ISBN-13:
DOWNLOAD EBOOK →Author: I. Shainberg
Publisher: Pergamon Press
Published: 1983-07-01
Total Pages: 65
ISBN-13: 9780080307688
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