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- Author:
- Weir, Wilbert Walter, 1882 , USDA
- Subject:
- crop rotation , fertilizers , yields , crop yield , crop production , soil productivity , long term experiments , research methods , land management , soil management , Crop rotation. , Soil productivity.
- Physical description:
- 68 p.
- Collection:
- Organic Roots Collection
- Series:
- Bulletin of the U.S. Department of Agriculture.
- Part Of:
- Bulletin of the U.S. Department of Agriculture.
- Author:
- McKee, Roland, 1880 , Enlow, C. R. (Charles Ranger), 1893 , USDA
- Subject:
- legumes , plant physiology , feed quality , forage quality , poisonous plants , green manures , ornamental value , crop-weed competition , chemical composition , seed storage , sowing , crop production , harvesting , forage crops , crop yield , seed crop production , insect pests , plant pathogens , plant diseases and disorders , descriptions , Crotalaria juncea , Crotalaria incana , Crotalaria pallida , Crotalaria spectabilis , Sunn hemp.
- Physical description:
- 31 p.
- Collection:
- Organic Roots Collection
- Series:
- Circular
- Part Of:
- Circular
