Test-demonstration farms and the spread of improved farm practices in southwest Virginia
1955
Blackmore, John | Dimit, Robert M. | Baum, E. L.
Since 1935 the Tennessee Valley Authority has sponsored the use of "test-demonstration farms"--Both in the Tennessee Valley and in other areas--as a means for introducing improved fertilizers and fertilization practices. A secondary purpose of these farms in the Tennessee Valley has been to develop and demonstrate wholes systems of farm operations that would increase farm income, promote soil conservation, and increase the level of management
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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