. Yearbook of agriculture . na. A Graphic Swnmary of American Agricultwre. 439 111 J III IP IIIII si^^sssssagggsa^ J J :- B-^ 4iiiit:^*-ti!^di: I- O <pirO O S <Q O < S ?; < UJ u< liJ 0) I ^ ••:-^ ^^ J^ W^i • m{:: iXuIn I- §3S sga ^^J o g I 5S - = ^385 = PIG. 30.—About half the acreage of spring -wheat in 1919 was m the Spring WheatArea, where it constituted 40 per cent of the acreage of all crops, and most of the otherhalf was located in the adjoining portion of the Great Plains Region. A secondary butimportant center of production is located in the subhumid portions of Washi
. Yearbook of agriculture . na. A Graphic Swnmary of American Agricultwre. 439 111 J III IP IIIII si^^sssssagggsa^ J J :- B-^ 4iiiit:^*-ti!^di: I- O <pirO O S <Q O < S ?; < UJ u< liJ 0) I ^ ••:-^ ^^ J^ W^i • m{:: iXuIn I- §3S sga ^^J o g I 5S - = ^385 = PIG. 30.—About half the acreage of spring -wheat in 1919 was m the Spring WheatArea, where it constituted 40 per cent of the acreage of all crops, and most of the otherhalf was located in the adjoining portion of the Great Plains Region. A secondary butimportant center of production is located in the subhumid portions of Washington andOregon. The southern boundary of the Spring Wheat Area is determined largely by thenorthern boundary of winter wheat, which is, in general, more productive and moreprofitable where it can be grown. The northern limit of spring wheat is approximatelythe mean summer temperature of 58°, which is found in the United States only in thewestern mountains. 440 YearhonTf of the Department of Agriculture^ Fig. 31.—The United States produces about one-fifth of the worlds wheat, as com-pared with three-fifths of the,worlds corn and cotton. The wheat crop of the measured in liusliels. is usually from one-fourth to one-third of the corn crop. Halfof the wheat crop was grown in six States in 1919. Kansas was the leading State, asusual, but North Dakota, which has often ranked first and is usually second, had a verypoor crop in 1919. On the other hand, both acreage and production were unusuallylarge that year in the southern portion of the Corn Belt and uorthern portion of theCorn and Winter Wheat Region. (See Fig. 2. • A Grapkic Summary of American Agriculture. 441 1 llJ / ^^^ e) f < J 111 < 9\<^ •:-^^iii* <2 H •/;•,• ? * < 0 i illii i 5g = gS 1 J3iji i iSSSi i iSiii i :1^ ESS^SSSSsI ^£it^Si Fig. 32.—The Oat Belt of the United State.* consists of a crescent-shaped area extendingfrom New England to North Dakota, bou
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectagriculture, bookyear
