Notes: Fertilization Increases Cone Production in a 55-year-old Ponderosa Pine Stand in Central Arizona
Abstract:Female flowering and number of cones in ponderosa pine were linearly related to urea ammonium phosphate application. A rate of 1,121 kg/ha produced about four times as many cones as controls; 560 kg/ha produced twice as many as controls. Fertilizer had no effect on male flower production. Increased cone production seems to be related to inherent ability to flower and heavy fertilizer application. Forest Sci. 30:1079-1083.
Document Type: Miscellaneous
Affiliations: Research Plant Physiologist at Rocky Mountain Forest and Range Experiment Station, USDA Forest Service, Forestry Sciences Laboratory, Northern Arizona University, Flagstaff, AZ 86001
Publication date: December 1, 1984
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