Response of corn to zinc applied with banded acid-type fertilizers and ammonium polyphosphate
Mortvedt, J.J.
Response of corn to zinc applied with banded acid-type fertilizers and ammonium polyphosphate - 1988 - Printed
Tables, graphs, literature cited p. 88
Two fluid acid-type fertilizers (10-30-0 and 10-30-0-7S), made by mixing urea with wet-process H3PO4 or urea with H3PO4 and H2SO4, were compared with 10-34-0 ammonium polyphosphate fertilizer (APP), granular triple superphosphate (TSP) and diammonium phosphate (DAP) by banding with ZnSO4 or alone (no ZnSO4) to a Zn-deficient Crowley silt loam (Typic Albaqualf) in a greenhouse pot experiment. Each P fertilizer was banded at a rate equivalent to 40 lb of P2O5/ac. The ZnSO4 was applied at rates of 3 and 12 mg (1.5 and 6 ppm) of Zn perpot containing 2 kg of soil and 1 kg of quartz sand.Maize (Zea mays L.) forage yields and Zn uptake increased with rate of applied
English
Ammonium phosphate
Band placement
Iron
Manganese
Phosphate fertilizers
Urea
Zinc
Zea mays
Response of corn to zinc applied with banded acid-type fertilizers and ammonium polyphosphate - 1988 - Printed
Tables, graphs, literature cited p. 88
Two fluid acid-type fertilizers (10-30-0 and 10-30-0-7S), made by mixing urea with wet-process H3PO4 or urea with H3PO4 and H2SO4, were compared with 10-34-0 ammonium polyphosphate fertilizer (APP), granular triple superphosphate (TSP) and diammonium phosphate (DAP) by banding with ZnSO4 or alone (no ZnSO4) to a Zn-deficient Crowley silt loam (Typic Albaqualf) in a greenhouse pot experiment. Each P fertilizer was banded at a rate equivalent to 40 lb of P2O5/ac. The ZnSO4 was applied at rates of 3 and 12 mg (1.5 and 6 ppm) of Zn perpot containing 2 kg of soil and 1 kg of quartz sand.Maize (Zea mays L.) forage yields and Zn uptake increased with rate of applied
English
Ammonium phosphate
Band placement
Iron
Manganese
Phosphate fertilizers
Urea
Zinc
Zea mays