Effect of micronutrients on growth and yield in sunflower (Helianthus annuus)

A field experiment was conducted during late kharif 2007 under rainfed condition at University of Agricultural Sciences, Dharwad on sunflower hybrid ‘DSH-1’ to study the effect of micronutrient application on sumflower. The micronutrients B (0.3%), Zn (0.5%) and Fe (0.5%) were applied individually or in combination of two against control twice at 35 and 55 days after sowing. The productivity of sunflower enhanced significantly by the alone application of B, Zn or Fe. However, boron application was proved to be the best. Combined use of any two micronutrients could not increase yield over alone application of boron.