Download or read book Root Zone Water Quality Model written by Lajpat Ahuja and published by Water Resources Publication. This book was released on 2000 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication comes with computer software and presents a comprehensive simulation model designed to predict the hydrologic response, including potential for surface and groundwater contamination, of alternative crop-management systems. It simulates crop development and the movement of water, nutrients and pesticides over and through the root zone for a representative unit area of an agricultural field over multiple years. The model allows simulation of a wide spectrum of management practices and scenarios with special features such as the rapid transport of surface-applied chemicals through macropores to deeper depths and the preferential transport of chemicals within the soil matrix via mobile-immobile zones. The transfer of surface-applied chemicals (pesticides in particular) to runoff water is also an important component.

Download or read book Using the Root Zone Water Quality Model RZWQM to Predict Water Movement Through a Hydrocarbon Contaminated Soil written by Scott Michael Anderson and published by . This book was released on 2003 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modification of Root Zone Water Quality Model RZWQM to Simulate the Tillage Effects on Subsurface Drain Flows and NO3 N Movement written by Piyush Singh and published by . This book was released on 1994 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of the Root Zone Water Quality Model RZMQM to the Study of Nitrate in Tile Drainage in East Central Illinois written by S.E. Walker and published by . This book was released on 1994 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Root Zone Water Quality Model written by and published by . This book was released on 1992 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling the Field Water Balance on Irrigated Crop Fields Using Root Zone Water Quality Model written by Michael I. Gangwer and published by . This book was released on 2005 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of the Root Zone Water Quality Model RZWQM Under Nova Scotia Conditions written by Karl Douglas Caldwell and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Root Zone Water Quality and Soil Moisture Dynamics of Biomass Cropping Systems and Landscape Positions written by Wade William Welsh and published by . This book was released on 2012 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Agronomy written by and published by Elsevier. This book was released on 2000-10-11 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 71 contains six outstanding reviews that discuss cutting edge developments in the crop and soil sciences. Chapter 1 addresses advances in the development, use, and evaluation of controlled release fertilizers. Chapter 2 is a comprehensive review of developments in breeding crops for increased nutritional value. Historical and current advances in the field are covered as well as selection in methodology and employment of molecular biology tools. Chapter 3 is a comprehensive treatment of remaking bean plant architecture for efficient production. Chapter 4 is a review on carbon sequestration, specifically, the potential of world cropland solid to serve as a source of atmospheric carbon. Chapter 5 discusses the ability of grain legumes (pulses) to adapt to water-limited environments. Chapter 6 describes and applies an important water quality model - the root zone water quality model (RZWQM). The model is described and discussion is provided on the calibration and application in laboratory and field settings.

Download or read book Pesticides in the Soil Environment written by Hwei-Hsien Cheng and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pesticides in the soil environment - an overview. Pesticide sources to the soil and principles of spray physics. The retention processes: mechanisms. Sorption estimates for modeling. Abiotic transformations in water, sediments, and soil. Biological transformation processes of pesticides. Volatilization and vapor transport processes. Organic chemical transport to Groundwater. Movement of pesticides into surface waters. Modeling pesticide fate in soils. Efficacy of soil-applied pesticides. Impact of pesticides on the environment. Risk/benefit and regulations. Chemical index.

Download or read book Proceedings of the Federal Interagency Workshop on Hydrologic Modeling Demands for the 90 s written by and published by . This book was released on 1993 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water resources Investigations Report written by and published by . This book was released on 1993 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bridging Among Disciplines by Synthesizing Soil and Plant Processes written by Ole Wendroth and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 8th book of Dr. Ahuja’s innovative “Advances in Agricultural Systems Modeling” series, authors give a look into the future of climatesmart agricultural systems, emphasizing the integration of soil, weather, vegetation and management information to predict relevant agro-ecosystem processes. Expansion of data availability, improvement of sensors, and computational power have opened opportunities in modeling and exploration of management impact. Authors give a background on model development and explain soil, plant, and climate processes and their interactions that encompass the wide range of applications of simulation models to address challenges in managing our resources and complex agricultural systems.

Download or read book Water Quality for Agriculture written by R. S. Ayers and published by . This book was released on 1985 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Modeling Water Flow and Nitrogen Transformations in the Root Zone written by Anna Levin and published by . This book was released on 2007 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Quality Field Guide written by and published by . This book was released on 1983 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purposes of this guide are to provide information to Soil Conservation Service (SCS) Field Office Personnel on the control of nonpoint sources of pollution from agricultural lands and to incorporate a water quality perspective into all conservation planning. Nonpoint source pollution is both a relatively concern and a complex phenomenon with many unknowns. Knowing the extent to which agricultural sources contribute to the total pollution load, the extent to which various control practices decrease this load, and the effect of reducing the pollutants delivered to a water body are basic to the achievement of water quality."--Page 3

Download or read book Water Quality Hydrology written by V.P. Singh and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is vital to life, maintenance of ecological balance, economic development, and sustenance of civilization. Planning and management of water resources and its optimal use are a matter of urgency for most countries of the world, and even more so for India with a huge population. Growing population and expanding economic activities exert increasing demands on water for varied needs--domestic, industrial, agricultural, power generation, navigation, recreation, etc. In India, agriculture is the highest user of water. The past three decades have witnessed numerous advances as well as have presented intriguing challenges and exciting opportunities in hydrology and water resources. Compounding them has been the growing environmental consciousness. Nowhere are these challenges more apparent than in India. As we approach the twenty first century, it is entirely fitting to take stock of what has been accomplished and what remains to be accomplished, and what accomplishments are relevant, with particular reference to Indian conditions.