Zinc for Winter Wheat
Determine if zinc will increase winter wheat yields.
On 12 Oct 93 Zn was applied with 92 lb N as NH3, 20 lb P and 15 lb sulfur using a chisel fertilizer applicator. (This was the only tillage before seeding on this lentil field.) Seeded field to Madsen on 13 Oct 93, 7" double disc drill. The plots were 30 by 450 ft. A 22 x 450 ft cut was taken for yield.
There were no differences in yield, test weight (average 55.5 lb/bu) or protein (average 12.9%). Fall conditions were too dry for wheat to emerge. Wheat came up during late winter. Stand was somewhat ragged and uneven as spring growth began and wheat progress was slow, even with May rains. Balance of summer was well below average rainfall--driest in this area since 1977. With poorer than normal plant population and dry conditions, crop was marginal at best.
us: Hans Kok, (208)885-5971
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