WSU Tree Fruit Research & Extension Center

Organic & Integrated Tree Fruit Production

Friday, January 19, 2018

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5640. Rasmussen, P.E.. 1976. Nitrogen and sulfur fertilization effects on water relations and growth of non-irrigated white wheat.. OR Agr. Exxpt. Sta. Special Report 459, p. 17.

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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