Yazar
John S Selker
3 cilt bulundu.
Cilt sonuçları
Vadose zone processes
John S Selker, John S. Selker, James T. McCord, C. Kent Keller · CRC
345 sayfa · 1999
Zone of aeration / Groundwater flow / Environmental Science / Geochemistry / Science
Pesticides in southern Willamette Valley groundwater
John S. Selker · Oregon State University, Extension Service
Sayfa sayısı yok · 2004
Groundwater / Pesticide content / Pollution / Water
Irrigation system maintenance, groundwater quality, and improved production
John S. Selker · Oregon State University Extension Service
Sayfa sayısı yok · 2004
Equipment and supplies / Groundwater / Irrigation / Maintenance and repair / Quality