Growth, yield and economics of white onion (Allium cepa L.) as influenced by different land designs and foliar application of bio-stimulants in Konkan region of India

Abstract

The field experiment was carried out during the rabi season (December- March) of 2022-23 at Agronomy farm, College of Agriculture, Dapoli, Maharashtra, to study the effect of different land configuration and foliar sprays of bio-stimulants on growth, yield and economics of white onion (Allium cepa L.). Experiment was replicated thrice in strip- plot design with 15 treatment combinations. Six week old seedlings of white onion cv. Alibaug local were transplanted, on three different land configurations (M), viz. flatbed (M1), furrow irrigated raised bed (FIRB) (M2) and ridges and furrow (M3), transplanted at a distance of 30 x 15 cm distance and were sprayed with two different concentrations of bio-stimulants (B), viz. K-sap 0.5% (B1) and 1.0% (B2) and chitosan 0.5% (B3) and 1.0% (B4) along with water spray (B5) as control treatment. Higher yield and net returns were obtained when white onion was transplanted on flatbed method and sprayed with chitosan 1.0% foliar spray or K-sap 1.0% spray at 30 and 55 DAT.