. Agricultural bacteriology. Bacteriology, Agricultural. 148 INFLUENCE OF SALTS ON THE SOIL calcium nitrate, potassium chlorid, potassium sulphate, magnesium nitrate, and sodium sulphate. 200. 100 O o FIG. 21.—Graphs showing the percentage of stimulation at the above noted molec- ular concentrations (See Fig. 20), the untreated soil being counted as producing 100 per cent, of nitric nitrogen. 1 x 10' 65xlO-JP 55 x 10 -5 V d 7x 10-'. ' 6 x 10 ' R x 10 ';: 4 x 10" EXPLANATION NITRIFICATION ^^^ff AMMOIFICATION 1 1 5D x 10"" 43 x 10 "5 « x 10 "5 33 x NT0 :i) x 10'5. "
. Agricultural bacteriology. Bacteriology, Agricultural. 148 INFLUENCE OF SALTS ON THE SOIL calcium nitrate, potassium chlorid, potassium sulphate, magnesium nitrate, and sodium sulphate. 200. 100 O o FIG. 21.—Graphs showing the percentage of stimulation at the above noted molec- ular concentrations (See Fig. 20), the untreated soil being counted as producing 100 per cent, of nitric nitrogen. 1 x 10' 65xlO-JP 55 x 10 -5 V d 7x 10-'. ' 6 x 10 ' R x 10 ';: 4 x 10" EXPLANATION NITRIFICATION ^^^ff AMMOIFICATION 1 1 5D x 10"" 43 x 10 "5 « x 10 "5 33 x NT0 :i) x 10'5. " 23 x 10 '5 ' 20 x 10 '5 ~ nn x 10"°' • I 100 x 10 6_ 500 x 10"" " 0 r J •n I 1- 1 _n _ _ _n ^ _. _ — , —^ _ , m-iM m _-! 1 o - ^ 6 o i o o R w 5 0 FIG. 22.—Graphs showing the molecular concentrations at which the various salts are toxic to ammonifying and nitrifying organisms in the soil. There were also six which failed to stimulate the nitrifiers, but it is quite evident from the results given in Fig. 20 that in the majority of cases these are different from the ones which failed to stimulate the ammonifiers. This is remarkable when we remember. 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 Greaves, J. E. (Joseph Eames), b. 1880. Philadelphia New York, Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbacteri, bookyear1922
