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No description available.

No description available.

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No description available.

Labeled nitrogen fertilizer (N-15) was applied to wheat to determine fertilizer nitrogen movement in the soil at harvest. Most of the labeled fertilizer recovered in the soil was found in the surface few feet. The amount of nitrogen fertilizer detected below S feet was minimal.

No description available.

Durum wheat was grown with deficient, adequate, and excessive rates of ¹⁵N-labeled nitrogen fertilizer in order to document fertilizer nitrogen movement in the soil with differing nitrogen management. Crop water use increased with nitrogen rate due to increased vegetative growth. The amount of excess water applied increased with a decrease in nitrogen rate. Soil bromide concentrations at harvest suggest that the maximum potential depth of leaching was 3 to 6 feet. Most of the fertilizer applied in this study was recovered in the top 2 to 3 feet of soil. Fertilizer nitrogen rate and timing resulted in some differences in recovery of labeled fertilizer in the soil and plant, but did not contribute significantly to the depth of fertilizer nitrogen leaching.

Ten varieties of barley were tested at the Safford Agricultural Center in 1994. Gustoe, the standard variety for the area, was the highest yielding variety in the trial.

Twenty two varieties of durum wheat were tested at the Safford Agricultural Center in 1994. One of the experimental lines, PH888-216, had the highest yield at 4152 pounds per acre. This yield was nearly 38% higher than Aldura, which has been the standard variety for many years. Durex was the highest yielding registered variety with a yield nearly 23% over that of Aldura.