. Bulletin. 1901-13. Agriculture; Agriculture. NITRIFYTNG POWER OF SOILS AT DIFFERENT DEPTHS. 13. Fig. 3.—Diagram showing the nitrification of ammonium sulphate in samples of soil from diflerent depths from plat 120, Truckee-Carson Experiment Farm. Original nitrate present in samples: Depth, 0 to 6 inches, parts per million; 6 to 12 inches, ; 12 to 18 inches, ; 18 to 24 inches, ; 24 to 36 inches, in the previous paragraph. The samples from plat 120 show nitrifica- tion varying rather irregularly with depth. Samples from plat 130 10 0 - .droG" ^'tvIZ" I270I8&qu
. Bulletin. 1901-13. Agriculture; Agriculture. NITRIFYTNG POWER OF SOILS AT DIFFERENT DEPTHS. 13. Fig. 3.—Diagram showing the nitrification of ammonium sulphate in samples of soil from diflerent depths from plat 120, Truckee-Carson Experiment Farm. Original nitrate present in samples: Depth, 0 to 6 inches, parts per million; 6 to 12 inches, ; 12 to 18 inches, ; 18 to 24 inches, ; 24 to 36 inches, in the previous paragraph. The samples from plat 120 show nitrifica- tion varying rather irregularly with depth. Samples from plat 130 10 0 - .droG" ^'tvIZ" I270I8" I8'7024' 247»36" NHTntP<i-PIC^ A//fr/fes - P/a/^/ap 200 ^1 100 II 0 ^§ II Fig. 4.—Diagram showing the nitrification of ammonium sulphate in samples of soil from different depths from plat 130, Triiokee-rarson Experiment Farm. Original nitrate present in samples: Depth, 0 to (i inches, parts per million; (1 to 12 inches, ; 12 to 18 inches, ; 18 to 24 inches, ; 24 to 3(i inches, 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 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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