. Yearbook of agriculture . FIG. map i. much reduced and .thrFrolf nTth.^GFoK^Si?;sectionoStates Weather Bureau :Hnd. published in the Fiost an 1 tne i^i(^%vmfe ^^^^ Mountain andthe Atlas of American Agriculture The l^^igher ait tude of the K^^ .uou ^^^^.^^ in lengthening the growing season along their shores should also be noted. 420 Yearbook of the Department of Agriculture, IMllllillii Fig. 6.—Soils originally or at present covered with forest are normally light colored,and are likely to be less fertile than soils in regions of lower rainfall. Grassland soils,in general, are
. Yearbook of agriculture . FIG. map i. much reduced and .thrFrolf nTth.^GFoK^Si?;sectionoStates Weather Bureau :Hnd. published in the Fiost an 1 tne i^i(^%vmfe ^^^^ Mountain andthe Atlas of American Agriculture The l^^igher ait tude of the K^^ .uou ^^^^.^^ in lengthening the growing season along their shores should also be noted. 420 Yearbook of the Department of Agriculture, IMllllillii Fig. 6.—Soils originally or at present covered with forest are normally light colored,and are likely to be less fertile than soils in regions of lower rainfall. Grassland soils,in general, are dark colored, the humid prairie soils being commonly almost black andhighly fertile—the subhumid prairie soils, blackest of all—while the semiarid plains soils are dark brown or chocolate colored, the color gradually fading tomedium brown in regions of lesser rainfall, and to light brown or even ashv grav indesert areas. The light-colored forest soils in the United States total about 800 millionacres, the dark-colored grassland soils about 600 million acres, and the light-coloredarid soils about 500 million acres. A Graphic Swnmary of American Agriculture. 421
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectagriculture, bookyear
