How Valuable Are the Soils of Central Illinois a Ten Year Study of Selected So
How Valuable Are the Soils of Central Illinois a Ten Year Study of Selected So
W N William Neil Thompson
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On three soil associations - - Muscatine -Sable, Flanagan- Drummer, and Elliott-Ashkum over 50 percent of the tillable land was in corn and soybeans, the two most profitable crops (Table 2). Practically all these farms were in the cash-grain area of east-central Illinois 1 (Fig. 2). 'Because they do not have the ability to manage livestock efficiently, or because they are unwilling to handle it, or for still other reasons, many farmers in the area where these farms are located (chiefly Farming-...Type Area 4) do not turn soil-building crops into the cash equivalents of what they can get from grain crops. . On these farms the yields may be maintained at a high level by use of legumes, including catch crops, and by applications of commercial fertilizers. t96S] VALUE OF CENTRAL ILLINOIS SOILS 357 ' in 32 5 o 8 j . GO I ri OOt^ 0000 Q r*-H s*o> up M c? tO ^ CO "3 "5 5O ; S CO -^ t C5 00 (NM N MCO t^ *TJ"3 tOO5C5 OS OS OS O5OJ OS 00O ~-f. -f. -~ -i ~ ~ : "c : -^ : : $ ill 5s:?
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