J. H. Gourley
1883
Modern fruit production
Notes on the presence of nitrates in orchard soils
Text-book of pomology
... Orchard management
A survey of Ohio orchard soils relative to phosphorus distribution and acidity
Chemical fertilizers for greenhouse lettuce
Manures and fertilizers for truck crops
Nitrate fertilization and keeping quality of apple fruits
Ringing applied to the commercial orchard
The effects of fertilizers in a cultivated orchard