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Browsing Extension & Experiment Station Communications by Author "Rackham, Robert L."

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Browsing Extension & Experiment Station Communications by Author "Rackham, Robert L."

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  • Oregon State University. Extension Service.; Rackham, Robert L.; McNeilan, Ray A. (Corvallis, Or. : Extension Service, Oregon State University, 1984-01)
  • Oregon State University. Extension Service.; Rackham, Robert L.; McNeilan, Ray A. (Corvallis, Or. : Extension Service, Oregon State University, 1994-09)
    Cover crops planted in late summer are an inexpensive way to build better soil for gardening. Cover crops often are called green manure crops. They are grains, grasses, or legumes that will grow during fall and winter a ...
  • Oregon State University. Extension Service; Rackham, Robert L. ([Corvallis, Or.] : Oregon State University, Extension Service, 1996-05)
    Adequate soil moisture is one of the most important factors in tree growth and production. The amount of irrigation needed varies greatly according to soil type and depth, season, weather, and tree size.

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