. Bacteriological studies of the soils of the Truckee-Carson irrigation project. Truckee-Carson irrigation project. [from old catalog]; Soil microbiology. 20 SOILS OF THE TEUCKEE-CAESON lEEIGATION PEOJECT. standpoint. The results are all expressed in Table I as parts of nitrogen per million of the Fig. âDiagram showing the nitrification of ammonium sulphate in samples of soil from different depths Irom plats 280 and 290, Truckee-Carson Experiment Farm. Original nitrate present in samples from plat 280: Depth, 0 to (i inches, 12 parts per million; 6 to 12 inches, 10; 12 to IS inc
. Bacteriological studies of the soils of the Truckee-Carson irrigation project. Truckee-Carson irrigation project. [from old catalog]; Soil microbiology. 20 SOILS OF THE TEUCKEE-CAESON lEEIGATION PEOJECT. standpoint. The results are all expressed in Table I as parts of nitrogen per million of the Fig. âDiagram showing the nitrification of ammonium sulphate in samples of soil from different depths Irom plats 280 and 290, Truckee-Carson Experiment Farm. Original nitrate present in samples from plat 280: Depth, 0 to (i inches, 12 parts per million; 6 to 12 inches, 10; 12 to IS inches, 6; 18 to 24 inches, 15; 24 to 36 inches, From plat 290: Depth, 0 to 6 inches, GO parts per million; li to 12 inches, (iO; 12 to 18 inches, ; 18 to 24 inches, 60; 24 to 36 inches, 00. Table I.âNitrification in solution of samples of soil from plats 100. 110. 180, 190, 220, 260, 270, and 280,^ Truckee-Carson Experiment Farm. Incuhated^al 28° C. Ammonia to nitrite Nitrite to nitrate Depth of soil. (parts per million V^ (parts per million)» plat. ) 6 days. 12 days. 10 days. 20 days. Inches. 1 . 100 0-6 (i. 50 25 9t;. 00 6-12 25 12-18 18 110 0-6 .50 15 1 180 (J-12 12-18 0-6 20 25 15 ... 1 24 00 ()-12 1 15 12-18 : 00 190 0-6 16 220 0-6 00 SO. 00 6-12 00 12-18 00 260 0-6 . 17 (1-12 ' 10 12-18 1 10 270 0-6 20 6-12 00 â 2801 0-6 5. 75 , 20 81. 60 6-12 20 12-18 20 1 Plat 280 is located in an old alfalfa field one-fourth mile north of Fallon. 2 Used medium for isolating nitrite bacteria. ^ Used medium for isolating nitrate bacteria. 211. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illus
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