Effect of Foliar Sprays of Boron on Quality and Nutrient Uptake of French Bean (Phaseolus vulgaris L.) in Entisol

Abstract

The pot culture experiment was conducted to study the effect of foliar application of   boron through boric acid @ 0.2, 0.4, 0.6 and 0.8 percent and soil application of borax  @ 2.5 kgha-1 and 5.0 kg ha-1 on growth and yield of French bean Cv. Phule Suyash. In  Entisol at Division of Soil Science and Agricultural Chemistry, College of Agriculture, Pune, during Rabi 2017-2018. The experimental soil was deficient in boron (0.35 mg kg-1).  There were eight treatments replicated thrice in a completely randomized design. Application of GRDF (50:110:110 N, P2O5, K2O kg ha-1) along with two foliar sprays of boric acid @ 0.6 per cent at 25 and 55 DAS recorded significantly higher uptake of nitrogen  (3.58 g pot-1), phosphorus (0.23 g pot-1), K (1.84 g pot-1) and Boron (39.91 mg pot-1). Significantly higher protein (22.65%) content in french bean was recorded with the application of GRDF along with soil application of borax @ 5 kg ha-1 at the time of sowing and it was closely followed by GRDF + Two foliar sprays of boric acid each @ 0.6 per cent at 25 and 55 DAS (22.50%).