Crop Yields From Illinois Soil Experiment Fields in 1930 Together With a General
Crop Yields From Illinois Soil Experiment Fields in 1930 Together With a General
F C Frederick Charles Bauer
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Net Value of Total Yields the Important Consideration Ranked by net value of total crops, the Illinois experiment fields fall into quite different order than when arranged by net value of crop increases. Even tho the net value of the crop increases for soil treatment may be considerably greater on the less productive soils than on the more productive soils, the net value of the total crops pro- duced on the more productive fields is of course much greater. This value for the Aledo field is $43.... 30 an acre while at Unionville it is only $9. 52 (Table 10). The Aledo field is located on a young, dark soil with a heavy, noncalcareous subsoil, while the Unionville field is located on a mature yellow soil. It is thus easy to see that from the farm point of view the total acre-production is of much greater importance than the increase that can be obtained from any particular soil treatment. Some soils, it is obvious from Table 10, will challenge the most skilful farmer. Changes have been instituted on certain of the Illinois fields in an attempt to ascertain whether other crop rotations or other systems of soil treatment than those already tried will make possible a larger net total production.
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