INTEGRATED NUTRIENT MANAGEMENT IN BLACK CUMIN (Nigella sativa L.)
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Date
2017-08-08
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
A field experiment on “Integrated nutrient management in black cumin (Nigella
sativa L.)” was conducted at the Department of Horticulture, UAS, GKVK, Bangalore
during rabi season of 2016-17. The treatment comprised of four levels of RDF (25, 50, 75
and 100 %), four levels of nitrogen through farm yard manure (25, 50, 75 and 100 %) with
and without biofertilizer (Azospirillum, Bacillus megaterium and Frateuria aurantia) seed
treatment. Application of 75 per cent RDF + 25 per cent N through FYM + Biofertilizer
seed treatment recorded the maximum values for all the growth, yield and quality
parameters such as plant height (75.72 cm), plant spread (546.27 cm2), number of primary
branches (6.75), number of leaves per plant (100.40), dry matter accumulation (18.22 g),
number of pods per plant (38.13), size of pod (4.67 cm2), number of seeds per pod (95.33),
seed yield per plant (7.68 g), seed yield per hectare (1493 kg ha-1), fixed oil content (40.54
%), fixed oil yield (605.10 kg ha-1) and highest uptake of NPK (94.44 kg ha-1, 11.42 kg ha-
1 and 71.66 kg ha-1, respectively). The highest gross returns (Rs. 447999 ha-1), net returns
(Rs. 391395 ha-1) and B:C ratio (7.91) were also recorded in the same treatment. Thus, it
can be concluded that, integrated use of organic manure (FYM) and inorganic fertilizers
along with bio-fertilizers is ideal for maximizing growth, seed and oil yields of black
cumin.
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