Characteristic Soil types Soil types Soil types Soil types
Athena silt loam Walla Walla silt loam Warden sandy loam Farrell sandy loam
Location of field sites Colfax, WA Waitsburg,WA Paterson, WA Washtucna, WA
Coordinates
46°47′N, 117°26′W 46°15′N, 118°09′W 46°01′N, 119°37′W 46°89′N, 118°29′W
Annual precipitation (mm) 510 499 200 341
Annual average air temperature (℃) 9.0 12.3 12.1 9.9
Crop rotation1 WW-SW-SF WW-SF WW-SF WW-SF
Crop water source rainfed rainfed rainfed rainfed
%PM10 38.7 38 17.3 15
% sand 17.2 20.2 67.2 78
% very fine sand 8.7 15.2 44.5 45
% silt 65.8 63.5 23.2 15
% clay 17 16.3 9.6 7
Mean particle (mm) 0.0171 0.0185 0.0771 0.09
Soil wilting point water content (g g-1) 0.1072 0.1042 0.0664 0.035