by Frank M. D'Itri , Harold W. Belcher
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A Systems approach to conservation tilla...
The environmental mercury problem
Acid precipitation, effects on ecologica...
Zebra Mussels and Aquatic Nuisance Speci...
Artificial reefs
Chemical deicers and the environment
Water table control and subsurface irrig...
Subsurface heating and irrigation of soi...
Utilization of saline and other impaired...