May 28,1917 Influence of Crop , Season y Water on Soil Bacteria 
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(c) Fallow: 
Plot 39G, 37.5 inches of water applied in five equal irrigations. 
Plot 40G, 25 inches of water applied in five equal irrigations. 
Plot 41G, 15 inches of water applied in five equal irrigations. 
Plot 42 G, unirrigated. 
(d) Oats: 
Plot 43G, 37.5 inches of water applied in five equal irrigations. 
* Plot 44G, 25 inches of water applied in five equal irrigations. 
Plot 45G, 15 inches of water applied in five equal irrigations. 
Plot 46G, unirrigated. 
(e) Corn: 
Plot 47G, 37.5 inches of water applied in five equal irrigations. 
Plot 48G, 25 inches of water applied in five equal irrigations. 
Plot 49G, 15 inches of water applied in five equal irrigations. 
Plot 50G, unirrigated. 
In the work it was desired to eliminate, as far as possible, all variable 
factors except crop and irrigation water. For this reason the depth of 
plowing, time of planting, cultivation, etc. were as nearly uniform as 
possible on all of the plots. 
