Integration of Organic and Inorganic Sources of Nutrients on Yield Attributes, Yield, Nutrient Uptake and Economics of Rabi Sunflower (Helianthus annuus L.)
Supunya Nath, Manoranjan Satapathy, Rabindra Kumar Nayak
Journal of Advances in Biology & Biotechnology · pp. 1111–1119 · Published 18 Nov 2025
10.9734/jabb/2025/v28i113305Abstract
A field experiment was conducted during rabi season (November- February) of 2023-24 at Instructional Farm, Department of Agronomy, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha. It emphasized on the optimization of integrated nutrient management practices in sunflower cultivar ‘KBSH-78’. Sunflower (Helianthus annuus L.) is a major oilseed crop grown all over the world, which is well known for its high oil content, nutritional value, climate tolerance, and environmental advantages. The experiment was laid out in a Randomised Block Design consisting of ten treatments replicated thrice. The treatments were T1- STBFR (60:100:60 kg N:P2O5:K2O/ha), T2- STBFR + Lime 500 kg/ha, T3- STBFR + FYM 5t/ha, T4- STBFR + Vermicompost 2t/ha, T5- STBFR + Lime + FYM, STBFR + Lime + FYM + S 40 kg/ha, T7- STBFR + Lime + FYM + S 40 kg/ha + Borax 0.2% as one foliar spray, T8- STBFR + Lime + FYM + S 40 kg/ha + Borax 0.2% 2 sprays, T9- STBFR + Lime + FYM + S 40 kg/ha + Borax as soil application 10 kg/ha and T10- Control. The experiment result revealed that Integration of STBFR + Lime + FYM + S 40 kg/ha + Borax 0.2% 2 sprays produced maximum seed yield (2276 kg/ha), stover yield (5373 kg/ha), harvest index (29.7%), oil content (42.1 %) and oil yield (958 kg/ha).The highest yield attributing characters i.e., head diameter (18.95 cm), head weight (98.67 g), 1000 seed weight (49.63 g), total number of seeds per head (1365.3), number of filled seeds per head (1248.6) were recorded in STBFR + Lime + FYM + S 40kg/ha + Borax 0.2% 2 sprays. Application of integrated nutrient management practice of STBFR + Lime + FYM + S 40 kg/ha + Borax 0.2% 2 sprays recorded highest uptake of nitrogen (102.34 kg/ha), phosphorus (21.58 kg/ha), potassium (90.01 kg/ha), sulphur (19.48 kg/ha) and boron (399.38 g/ha). The integration of sulphur along with foliar spray of boron resulted in higher growth parameters and yield attributes of rabi sunflower.
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