. Bulletin. 1901-13. Agriculture; Agriculture. 14 SOILS OF THE TRUCKEE-CARSON TRKIGATTON PROJECT. practically failed to jiitrilV.' although the tAvo plats appear to be very similar. Figure 5 shows the relative nitrifying power of good and poor soils collected from adjoining plats. Plat 160 has a loose sandy soil to a. Fig. 5.—Diagram showing the nitrification of ammonium sulphate in samples of soil from different depths from plats \m and 170, Truckee-Carson Experiment Farm. Original nitrate present in samples from plat KiO; DepI h, 0 to (i inches, ;4 parts per million; 0 to 12 inches, 2.
. Bulletin. 1901-13. Agriculture; Agriculture. 14 SOILS OF THE TRUCKEE-CARSON TRKIGATTON PROJECT. practically failed to jiitrilV.' although the tAvo plats appear to be very similar. Figure 5 shows the relative nitrifying power of good and poor soils collected from adjoining plats. Plat 160 has a loose sandy soil to a. Fig. 5.—Diagram showing the nitrification of ammonium sulphate in samples of soil from different depths from plats \m and 170, Truckee-Carson Experiment Farm. Original nitrate present in samples from plat KiO; DepI h, 0 to (i inches, ;4 parts per million; 0 to 12 inches, ;-12 to IS inches, ; 18 to 24 inches, li; 24 to 3(i inches, From plat 170: Depth, 0 to 0 inches, parts per million; 6 to 12 inches, (i; 12 to 18 inches, ; 18 to 24 inches, ; 24 to 3(i inches, 3. depth of 18 inches; below this it is very heavy, but below 26 and 30 inches it is again lighter in texture. At the time of sami)ling, this plat was supporting a fine growth of alfalfa. Plat 170 is in the north- east corner of the same field, and was very similar except that the ' This had hocn irri^'atcd a hhort time ihc wore eollerted. 2H. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Washington Govt. Print. Off
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