by John P Sloan
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Container-grown ponderosa pine seedlings...
Large scalps improve survival and growth...
Effects of seeder design and seed placem...
Oxyfluorfen safe to use in Engelmann spr...
Root dipping of conifer seedlings shows ...
Ponderosa and Lodgepole Pine seedling bu...
Fluid Fertilizer Science and Technology
U.S. Department of Agriculture, Animal a...
Three water-soluble fertilizers affect g...
The compost tea brewing manual
Barnyard manure
Fluid fertilizer technology