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Activity of phosphorus fertilizers enriched with trace elements. 3. Field experiments with potatoes


, : Activity of phosphorus fertilizers enriched with trace elements. 3. Field experiments with potatoes. Pamietnik Pulawski (67): 115-124

In field trials at various locations in Poland in 1970-3, potatoes Flisak, Uran, Krab, Merkur, Lenino and Nysa were given 35.2 kg P/ha as either superphosphate (containing 17.5% P2O5, 0.2% B, 1.5% Mn), silicophosphate (containing 24.5% P2O5, 1.0% Zn, 0.02% Mo), enriched superphosphate (containing, in addition, 0.92 kg B and 6.9 kg Mn/ha) or enriched silicophosphate (containing, in addition, 3.1 kg Cu/ha, 3.1 kg Zn/ha and 65 g Mo/ha).

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