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Foliar Fertilizer for Winter Wheat

David Ostheller

Objective

Test use of foliar on club winter wheat.

Location: Fairfield, WA
Annual precipitation: 21 inches
Rotation: Wheat/lentil

Treatments

Check - no foliar
Foliar - 5 GPA, 16-0-2, 2 Ca, 2 Mg urea form (10.58 lbs/gal)

Comments

Foliar application was 24 May 94 in 50^oF to 80^oF temperatures. Wheat was in flag leaf stage. Plots were 25 by 300 ft. On 28 July 94 a strip 20 by 300 ft was harvested from the center of each plot and weighed using portable truck scales.

Data

**Yield,** bu/ac
Treatment	Rep 1	Rep 2	Rep 3	Rep 4	Average
Foliar	71	71	77	83	75a
Check	68	72	77	77	74a
LSD (5%)					5.2
CV					3.1%

Conclusion

Test weights averaged 56.8 lb/bu and protein averaged 11.6%. Neither were affected by the foliar application. There probably was adequate fertility in the soil without the foliar and dry conditions didn't allow a yield increase.

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Hans Kok, WSU/UI Extension Conservation Tillage Specialist, UI Ag Science 231, PO Box 442339, Moscow, ID 83844 USA Redesigned by Leila Styer, CAHE Computer Resource Unit; Maintained by Debbie Marsh, Dept. of Crop & Soil Sciences, WSU