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EFFECT OF FOLIAR FEEDING OF IRON , ZINC AND POTASSIUM ON GROWTH AND YIELD OF WHEAT | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 40, Issue 1, 2009, Pages 69-81 | ||
| Authors | ||
| R.K. Shati; Y.M. abu; | ||
| Abstract | ||
| A field experiment was conducted during the growing seasons 2002 – 2003 and 2003 – 2004 at the experimental fields of college of Agriculture – Abu – Ghraib – University of Baghdad in a silty clay loam Typic Torrifluvent to investigate the efect of foliar feeding of Iron , Zinc and Potassium on some growth characteristics and grain yield of wheat , cultivar – IPAA – 99 . The experimental design was split – split plots with using the RCBD with three replicates . Potash treatments occupied the main plots , K0 :control treatment , K1 :120 kg K.ha-1 applied to the soil , K2 :5000 mg K.l-1 foliar , K3 :120 kg K.ha-1 applied to the soil + 3000 mg K.l-1 foliar , K4 :120 kg K.ha-1 applied to the soil + 6000 mg K.l-1 foliar , and K5 :120 kg K.ha-1 applied to the soil + 9000 mg K.l-1 foliar . Zinc treatments 0,15, and 30 mg Zn.l-1 occupied the sub plots , while the iron treatments 0 , 50 and 100 mg Fe .L-1 occupied the sub – sub plots . Results showed that interaction between 120 kg K.ha-1 added to the soil and spaying with concentration of 100 mg Fe.L-1 gave significant of chlorophyll content and produced highest mean of chlorophyll content , which was 59.74 microgram . cm-1 , while it was only 51.44 microgram . cm-1 . Results showed also that spraying with the combination of 100 mg Fe . L-1 and 30 mg Zn . L-1 gave highest means for height of plant and flag leaf area which were 107.83 cm and 45.44 cm2 for the two parameters respectively , while they were only 95.51 cm and 28.18 cm2 for all the above two parameters respectively . Results showed also , that the data of the second season had significant data for the grain yield compared with the first season . The Zn2 (30 mg Zn . l-1) had the superiority data compared with other treatments or other combinations and gave the highest rate for grain yield that were 664 gm . m-2 , 718 gm . m-2 and 691 gm . m-2 for the treatments Zn2 , Zn2 × Fe2 and K5 respectively . | ||
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