WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Tuesday, December 18, 2018

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8412. Pumphrey, F.V. and P.E. Rasmussen. 1982. Winter wheat fertilization in the northeast intermountain region of Oregon.. OSU AES Circular of Information 691, OSU, Corvallis, OR.
Early spring application of N is more effective than preplant. Rates can be reduced up to 50%. Most wheat needs S fertilizer (15-30 lb/ac) if N is added. Most soils supply enough P for high yields. There have not been significant yield responses to potassium or trace elements.

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