
TY  - JOUR
A1  - Brennan, R. F. 
T1  - Lupin grain yields and fertiliser effectiveness are increased by banding manganese below the seed
JF  - Australian Journal of Experimental Agriculture
JO  - Aust. J. Exp. Agric.
Y1  - 1999
VL  - 39
IS  - 5
SP  - 595
EP  - 603
KW  - 
UR  - https://doi.org/10.1071/EA98179 
N2  - The effectiveness of manganese fertiliser for seed (grain) production of lupin (Lupinus angustifolius L.) was measured in 31 field experiments when manganese sulfate, applied at 0&#8211;15 kg manganese/ha was either: (i) placed (drilled) with the seed at about 5 cm; (ii) applied to the soil surface (topdressed) before sowing; or (iii) banded about 8 cm below the seed (13 cm below the soil surface) while sowing. Relative to the nil-manganese treatment, additions of manganese fertiliser increased yields by 190&#8211;1870 kg seed/ha. Increases were greatest for manganese banded below the seed (average increase 1100 kg seed/ha) followed by manganese drilled with the seed (average increase 845 kg/ha), while the topdressed manganese fertiliser was least effective (average increase 670 kg/ha). Additions of manganese fertiliser did not affect plant density (measured 1 month after sowing) or the yield of dried shoots. A concentration of manganese in the main stem of about 20 mg/kg was a reliable predictor of manganese deficiency in lupin grain yield. It is therefore recommended that manganese fertiliser is banded about 8 cm below the seed while sowing lupin rather than the present practices of either drilling the manganese fertiliser with the seed or topdressing it before sowing. 
ER  -

