Volume 68(4)2023 Effect of organic nutrient management on yield, quality, nutrient uptake and economics of aromatic rice in Hill Zone of West Bengal
ORGANIC NUTRIENT MANAGEMENT EFFECTS ON AROMATIC RICE
DOI:
https://doi.org/10.59797/ija.v68i4.170Keywords:
The manuscript has been prepared based on M.Sc. (Ag.) thesis of the first author submitted to B.C.K.V., Nadia, West Bengal during 2022 (unpublished).Abstract
A field experiment was conducted at Uttar Banga Krishi Viswavidyalaya, Kalimpong, West Bengal, India during the rainy (kharif) season of 2021 to study the response of two aromatic rice cultivars (‘Kalture’, and ‘Kalonunia’) under four organic nutrient management (Cow dung manure @ 5 t/ha, Vermicompost @ 1.5 t/ha, Mustard cake @ 0.5 t/ha, and Leaf mould @ 1 t/ha). ‘Kalonunia’ recorded greater tiller production (435/m2), LAI (3.08) and dry matter accumulation (452 g/m2) at 63 days after planting (DAT), but ‘Kalture’ had taller plants (137.1 cm) and lodging susceptibility (score 4.0) at maturity. ‘Kalonunia’ performed well in terms of grain yield (3.32 t/ha), non-lodging habit, protein content (7.25%) and net income (₹ 57,043 ha-1) compared to ‘Kalture’ in the study. Although the application of vermicompost @ 1.5 t/ha resulted in maximum grain yield (3.22 t/ha) and nutrient uptake (44.6 kg N, 16.4 kg P and 39.0 kg K/ha), but mustard cake @ 0.5 t/ha could be a better option due to moderate yield (3.11 t/ha), higher protein content (7.1%), medium aroma (score 1.7), maximum net income (₹ 51,040/ha) and B:C ratio (2.10) in Hill Zone of West Bengal.
Key words: Aromatic rice, cultivar, growth, organic nutrient management, quality, yield
