Books by R. H. Roberts:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Roberts, R. H. (Ray Harland), 1890-: Apple physiology : growth, composition, and fruiting responses in apple trees (1926) (page images at HathiTrust)- Roberts, R. H. (Ray Harland), 1890-: Better cherry yields in Wisconsin (Agricultural Experiment Station, University of Wisconsin, 1922) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: The development and winter injury of cherry blossom buds (Agricultural Experiment Station of the University of Wisconsin, 1922) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Effect of defoliation upon blossom bud formation (Agricultural Experiment Station of the University of Wisconsin, 1923) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Factors affecting the variable growth of apple grafts in the nursery row (Agricultural Experiment Station of the University of Wisconsin, 1927) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Growing greenhouse tomatoes (Agricultural Experiment Station, University of Wisconsin, 1931), also by E. F. Buck (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: How much nitrogen do apple trees need? (Agricultural Experiment Station, University of Wisconsin, 1934) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: How to prune the young cherry tree (Agricultural Experiment Station, University of Wisconsin, 1924) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: The modified leader tree (Agricultural Experiment Station, University of Wisconsin, 1923) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Off-year apple bearing and apple spur growth (Agricultural Experiment Station of the University of Wisconsin, 1920) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Prune the bearing apple tree (Agricultural Experiment Station, University of Wisconsin, 1925) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Prune the cherry trees (Agricultural Experiment Station of the University of Wisconsin, 1919) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: The relation of scion variety to character of root growth in apple trees (Agricultural Experiment Station of the University of Wisconsin, 1927), also by T. Swarbrick (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Renewing old McIntosh (Extension Service, College of Agriculture, University of Wisconsin, 1956), also by University of Wisconsin. Extension Service (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Some stock and scion observations on apple trees (Agricultural Experiment Station of the University of Wisconsin, 1929) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Sour cherry fruiting (Agricultural Experiment Station, University of Wisconsin, 1930) (page images at HathiTrust)
- Roberts, R. H. (Ray Harland), 1890-: Top and double working : apple trees (Agricultural Experiment Station, University of Wisconsin, 1936) (page images at HathiTrust)
Find more by R. H. Roberts at your library, or elsewhere.