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Root Zone Water Quality Model

Root Zone Water Quality Model
Author: Lajpat Ahuja
Publisher: Water Resources Publication
Total Pages: 388
Release: 2000
Genre: Technology & Engineering
ISBN: 9781887201087
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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.

Advances in Agronomy

Advances in Agronomy
Author:
Publisher: Elsevier
Total Pages: 313
Release: 2000-10-11
Genre: Technology & Engineering
ISBN: 0080524346
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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.