New Zealand Journal of Agricultural Research abstracts
The macro- and micro-element content of swedes and kale in Southland, New
Zealand, and the effect of trace element-amended fertilisers on their Co, Se,
and Cu concentrations
N. D. GRACE
AgResearch Grasslands
Private Bag 11008
Palmerston North, New Zealand
M. CRAIGHEAD
B. WATT
Ravensdown Fertiliser Co-op Ltd
P.O. Box 1049
Christchurch, New Zealand
Abstract A survey of the mineral composition of 6 swede and 3
kale crops from 9 farms near Gore, Southland, New Zealand, showed that while
they provided adequate concentrations of the macro-elements and Fe to meet
dietary requirements of livestock, the kales were deficient in Mn and Zn (stems
only), Cu, Co, and I, whereas the swedes were deficient in Mn, Zn, Se, and I
(bulbs only), Cu, and Co. The applications of Co-, Se-, and Cu- amended
fertilisers at sowing and as a topdressing had no significant effect on the Co
and Cu concentrations of swedes and kale. The Se concentrations in the leaves
of the kale were roughly doubled 2 to 4 months after the topdressing with
Se-amended fertiliser.
Keywords swedes; kale; macro-elements; micro-elements;
amended fertilisers
New Zealand Journal of Agricultural Research, 2000, Vol. 43: 533-540
0028-8233/00/4304-0533 $7.00/0 (c) The Royal Society of New Zealand
2000
PDF file of entire paper: medium quality (565K); (scanned from paper original: notes about this process)
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