FERTIGATION STUDIES ON SPROUTING BROCCOLI (BRASSICA OLERACEA VAR. ITALICA) UNDER POLYHOUSE CONDITION
Loading...
Date
2019-08
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Horticultural Sciences, Bagalkot. (College of Horticulture, Bengaluru).
Abstract
Investigation on “Fertigation studies on sprouting broccoli (Brassica oleracea var. italica) under polyhouse condition” was conducted at College of Horticulture Bengaluru during 2018-19 with nine treatmentsand three replications to study the effect of different fertilizer doses and method of application on growth and yield of broccoli. Among different levels of nutrition, 125:75:50 Kg NPK ha-1 through drip irrigation in six equal split doses with water soluble fertilizes (WSF) resulted in significantly higher plant height (81.40 cm), higher stalk length (19.66 cm), number of leaves per plant (18.86), head volume (88.96 cc), height weight (254.24 g), maximum number of spears per plant (3.60) and total soluble solids (9.56 ºbrix). The same treatment also resulted in highest uptake of nitrogen,phosphorus and potassium. Treatment involving 125:75:50 Kg NPK ha-1 through drip irrigation with conventional fertilizers (CF) resulted in maximum leaf area per plant (1,940.01cm2) and leaf area index (24.55). Significantly higher yield per plot (5.97 kg) and yield per hectare (7.62 t/ha)was recorded with 125:75:50 Kg NPK ha-1 through drip irrigation with water soluble fertilizers (WSF),which was on par with the same levels of fertilizer when given through drip irrigation using CF. Overall, it may be concluded that application of different fertilizer levels enhanced the growth, yield and quality of sprouting broccoli except days taken to head initiation and days taken to 50 per cent head maturity. Application of 125:75:50 kg NPK/ha through drip irrigation with water soluble fertilizers in six split doses at equal weekly intervals resulted in better growth, yield and quality of broccoli.Best cost benefit ratio was also obtained with this treatment.