Effect of nitrogen and phosphorus on growth of cauliflower (Brassica oleracea var. botrytis) CV. Kavya

Abstract

The present research entitled “Effect of nitrogen and phosphorus on growth of cauliflower (Brassica oleracea var. botrytis) cv. Kavya” was conducted at Instructional Farm, Jambuvadi, Junagadh Agricultural University, Junagadh during October-2023 to February-2024. The treatments comprised of two levels of nitrogen (N) viz., N1: 150 kg/ha, N2: 175 kg/ha and two levels of phosphorus (P) viz., P1: 37.5 kg/ha, P2: 50 kg/ha. The experiment was laid out in Randomized Block Design (Factorial) with twelve treatment combinations and three replications. The results indicated that among two levels of nitrogen, N2 (175 kg/ha) gave maximum stalk length (11.40 cm), maximum number of leaves per plant at harvest (21.98), maximum leaf length (at 30 and 60 days after transplanting) (23.72 and 51.11 cm) respectively. While, N1 (150 kg/ha) gave minimum days of curd initiation (72.51 day) and days taken to curd harvest (19.38 day). Regarding phosphorus, P2 (50 kg/ha) gave maximum stalk length (11.38 cm), minimum days taken to curd initiation (72.19 day), minimum days taken to curd harvest (19.37 day), maximum number of leaves per plant (21.83), maximum leaf length (51.03 cm) at 60 days after transplanting.