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- Author:
- DeWalle, D.R. , Heisler, G.M.
- Subject:
- plants , plant cultural practices , horticulture , horticultural crops , crop production , natural resources , energy use and consumption , energy resources , energy conservation
- Physical description:
- p. 227-237.
- Collection:
- Rural Development Publications Collection
- Series:
- Yearbook of agriculture
- Part Of:
- Yearbook of agriculture - United States Dept. of Agriculture. 1980
