STANDARDISATION OF INTEGRATED NUTRIENT MANAGEMENT IN MARIGOLD (Tagetes erecta L.) cv. PUSA BASANTI GAINDA
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Date
2015-07-10
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
A field experiment was conducted at the Floriculture unit of Department of
Horticulture, College of Agriculture, University of Agricultural Sciences, Bengaluru,
during kharif 2014 on “Standardization of Integrated Nutrient Management in African
marigold (Tagetes erecta L.) cv. Pusa Basanti Gainda”. The experiment was laid out in
randomized block design with 3 replications and 9 treatments. The results of the
experiment indicated that treatment 8 (RDF+ FYM+ Arka Microbial Consortium + VAM
+ Micro nutrient foliar spray) and treatment 9 (75 per cent RDF+ FYM+ Arka Microbial
Consortium + VAM + Micro nutrient foliar spray) were found to be on par and recorded
significantly higher growth, flowering and quality parameters over control. Maximum
plant height (104.6), number of branches (13.53), plant spread in both E-W and N-S
direction (52.07 and 50.70 cm respectively), early flower bud initiation (31.27 days), 50
per cent flowering (58.70 days),longer flowering duration (53.87 days), number of
flowers per plant (47.63), number of flower per m2
(95.26), number of flowers per plot
(571.56), flower diameter (6.13cm), individual flower weight (9.92 g), fresh weight of ten
flowers (98.60 g), shelf life (9.70 days), dry weight of ten flowers (13 mg), estimated
flower yield (9.60 ton ha-1), thousand seed weight (3 g), seed yield per plot (225 g) and
xanthophyll yield (8.3 g kg-1) was recorded in treatment-8 which was on par with the
treatment-9. Significantly higher available nutrients in soil was recorded in T8 viz.,
nitrogen, phosphorus and potassium (162.00, 45.01and 302.20 kg/ha, respectively)
(Calcium and Magnesium) (3.80 and 0.78 cmol p+ kg-1 respectively), and Zinc, Copper,
Iron and Manganese (3.70, 2.35, 16.5, 17.5 g per kg, respectively). Similarly in plant and
flower (at second picinking) samples significantly higher per cent of nitrogen (81.26
kg/ha and 11.50 % respectively), phosphorus (34.83 kg/ha and 12.06 % respectively),
potassium (163.16 kg/ha and 5.90 % respectively), Calcium (96.54 kg ha-1 and 13.8 %
respectively) and Magnesium (60.34 kg ha-1 and 1.10% respectively), Zinc (482.03 g
ha-1 and 92.0 ppm respectively), Copper (84.07 g ha-1and 16.4 ppm respectively), Iron
(1284.33 g ha-1 and 296.9 ppm respectively) and Manganese (261 g ha-1 and 32.5 ppm,
respectively) was recorded in the same treatment combination (T8) which was followed
by the treatment T9. However, the economic analysis clearly indicated that net returns
ha-1 (Rs. 1, 91,003) and BC ratio (2.98) was highest in treatment T9 followed by T8 with
net return of Rs. 1,64,617 ha-1 and with T6 with BC ratio of 2.64.
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