WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Thursday, September 20, 2018

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6647. Steel, S. and D. Smith. 1990. Farming from the ground down.. Farm Journal (mid-January).
Discusses Terry Holsapple farming system in Illinois. Both P and K levels have risen several years after the last application of commercial fertilizer.

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Tree Fruit Research & Extension Center, 1100 N Western Ave, Washington State University, Wenatchee WA 98801, 509-663-8181, Contact Us