Authors studied the effect of copper nutrition on the yield, kernel
weight and raw protein content of winter wheat. Copper was applied in the form
of copper tetramine hydroxide that was produced from a clean copper containing waste
originating from microelectronical industry. After suitable chemical
transformation this waste can be used as an excellent secondary raw material
for the preparation of copper fertilizer. The foliar application of copper
tetramine hydroxide complex at the phenological phase of tillering
significantly increased the yield, kernel weight and raw protein content of
winter wheat. The calculated copper doses that gave the maximum yield, raw
protein content and kernel weight were 1.04, 1.12 and 0.77 kg ha
-1
respectively.
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