Response of sunflower (Helianthus annuus L.) to nano boron nitride fertilization

Abstract

Field experiment was conducted during Kharif-2016 at Zonal Agricultural Research Station, University of Agricultural Sciences, Bengaluru to study the “Response of sunflower (Helianthus annuus L.) to nano boron nitride fertilization”. The experiments were laid out in Randomized Complete Block Design with ten treatments and replicated thrice. The results showed that significantly higher seed (2788 kg ha-1) and stalk yield (5256 kg ha-1) were recorded with nano boron @ 0.2 % seed priming, which was on par with nano boron @ 0.2 % spray to capitulum at ray floret opening stage (2773 and 5069 kg ha-1, respectively) and soil application of borax @ 11 kg ha-1 (2424 and 5037kg ha-1, respectively) at the time of sowing. Significantly lowest seed yield was recorded with control (1629 and 4429 kg ha-1, respectively).