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ZINC AND IRON APPLICATION TO OPTIMIZE SEED YIELD OF MUSTARD

 Nazakat Nawaz, Malik Shah Nawaz*, Nasir M. Cheema** and Mubashir A. Khan*

Corresponding author:nazakat_nawaz@yahoo.com

 * Oilseeds Research Programme, Crop Sciences Institute, National Agricultural Research Centre, Islamabad,
Pakistan.
** Plant Sciences Division, Pakistan Agricultural Research Council, Islamabad, Pakistan.

ABSTRACT

 A study was conducted on a sandy clay loam soil at the National Agricultural Research Centre, Islamabad, Pakistan, during 2005 and 2006. The mustard (Brassica juncea) variety BARD-1 was treated with various -1 levels of Zn and Fe, (0-0, 0-1.5, 0-3, 2.5-0, 2.5-1.5, 2.5-3, 5-0, 5-1.5 kgha and -1 -1 5-3 kgha ), respectively. A basal dose of 90N and 60P kg ha was applied, in the form of Urea and triple super phosphate (TSP) with Zn and Fe. The increase in -1 Zn and Fe fertility from 0-1.5 to 5-1.5 kg ha increased yield of BARD-1. The maximum yield response was recorded when 5 kg ha-1 -1 Zn and 1.5 kg ha Fe were applied. Beyond this level, no further increase in yield was recorded in any mustard traits. A positive correlation was recorded between seed yield -1 -1 and 1000-seed weight with the application of 5 kg Zn ha and 1.5 kg Fe ha in combination at the time of sowing. It can therefore be concluded that 100 % -1 seed yield of mustard variety BARD-1 increased at 5 Zn: 1.5 Fe kg ha as a -1 -1 result of increased pods plant , number of seeds pod and 1000-seed weight.

 

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Pakistan Journal of Agricultural Research

June

Vol. 33, Iss. 2, Pages 192-421

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