The contribution of pesticides and other technologies to corn production in the corn belt region, 1964 to 1979
1982
Schroder, David H. A. | Headley, Joseph Charles | Finley, Robert M.
Extract: This report attempts to identify the contributions of technology and weather to corn yield variation for the period 1964 to 1979 in the Corn Belt Region with respect to three regression techniques. Technology variables included were genetic improvement, acres treated with herbicides, and fertilizers. A pooled cross-sectional time-series data base was used to estimate regression parameters for herbicides and other variables, using second degree polynomial equations in estimating a regional yield equation. In addition, changes in predicted yields were partitioned with respect to weather and technologies. Annual benefits obtained from herbicide use on corn for the U.S. in 1979 were estimmated at $2.1 billion.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
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