Commercial organic farming in the Corn Belt in comparison to conventional practices [USA]
Lockeretz, W.
Commercial organic farming in the Corn Belt in comparison to conventional practices [USA] - 1980 - Printed
Bibliography p. 720-722
English
0036-0112
Energy resources and management
Fertilizers
USA
Soil fertility
81-653352
Commercial organic farming in the Corn Belt in comparison to conventional practices [USA] - 1980 - Printed
Bibliography p. 720-722
English
0036-0112
Energy resources and management
Fertilizers
USA
Soil fertility
81-653352