. The nature and properties of soils; a college text of edaphology. Soils. ANIMAL- MANURE â MAHURIAL LOSSES OM -50%" NHs - 60 >» Pz O5-40 '» K2O -65 » y^W '^^^^^^^^^^^mM^^^mmm^j^0' PERCENTAGE OF THE COWS« TITUENTS OP CROP ADI3ED TO SOIL WATER 301L NUTRIEMT3 CaO ,30? \. LEACHING Fig. 63.â^Diagram showing the proportion of the harvested crop added to the soil in farm manure under average conditions. It is easy to see that a liberal dressing of manure on the hay and pasture will markedly increase the crop. Neverthe- less, as manure is available in limited amounts on the average farm a
. The nature and properties of soils; a college text of edaphology. Soils. ANIMAL- MANURE â MAHURIAL LOSSES OM -50%" NHs - 60 >» Pz O5-40 '» K2O -65 » y^W '^^^^^^^^^^^mM^^^mmm^j^0' PERCENTAGE OF THE COWS« TITUENTS OP CROP ADI3ED TO SOIL WATER 301L NUTRIEMT3 CaO ,30? \. LEACHING Fig. 63.â^Diagram showing the proportion of the harvested crop added to the soil in farm manure under average conditions. It is easy to see that a liberal dressing of manure on the hay and pasture will markedly increase the crop. Neverthe- less, as manure is available in limited amounts on the average farm and as commercial fertilizers will give almost as good returns on hay, it is generally considered judicious, except in *Hunt, T, F., General Fertiliser Experiments; Ann. Eep. Penn. Agr. Exp. Sta., 1907-1908, pp. 68-93. Thorne, 0. E., and others, JPlans and Summary Tables of the Experi- ments at the Central Farm; Ohio Agr. Exp. Sta., Cire. 120, pp. 101- 105, 1912. 3 Hopkins, C. G., Thirty Years of Crop dotation m Illinois; 111. Agr. Exp. Sta., Bui. 125, p. 337, 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 Lyon, T. L. (Thomas Lyttleton), 1869-1938; Buckman, Harry Oliver, 1883-. New York, Macmillan
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Keywords: ., bookauthorlyontlth, bookcentury1900, bookdecade1920, bookyear1922
