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Effect of Bio-Organic and Inorganic Nutrient Sources on Growth and Flower Production of African Marigold

Department of Floriculture and Landscape Architecture, Indira Gandhi Agricultural University, Krishak Nagar, Raipur, Chhattisgarh 492012, India
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Academic Editors: Varit Srilaong, Mantana Buanong, Chalermchai Wongs-Aree, Sirichai Kanlayanarat and Douglas D. Archbold
Horticulturae 2017, 3(1), 11; https://doi.org/10.3390/horticulturae3010011
Received: 2 December 2015 / Revised: 23 February 2016 / Accepted: 23 February 2016 / Published: 30 December 2016
(This article belongs to the Special Issue Quality Management of Organic Horticultural Produce)
African marigold (Tagetes erecta L.) is one of the most important flower crops grown commercially throughout India as a loose flower for worshipping, garland making, and garden display. The productivity and quality of flowers is greatly influenced by the quantity and source of nutrients. At present, these nutrients are primarily supplied through chemical fertilizers. The indiscriminate use and complete reliance on the use of chemical fertilizers has also led to deterioration of soil health, thereby affecting sustainable flower production. Keeping these points in view, a field experiment was conducted on African marigold cv. “Orange Culcuttia” at the Horticultural Research Farm, Indira Gandhi Agricultural University, Raipur, Chhattisgarh, India. The experiment was laid out in a randomized block design with three replications and twelve treatment combinations comprised of bio-organics (Cow Urine and Vermicompost), bio-fertilizers (Azospirillum and Phosphate-Solubilizing Bacteria) and NPK fertilizers. Application of Azospirillum + Phosphate-Solubilizing Bacteria + 5% Cow Urine + 50% recommended dose of “N” through Vermicompost + 50% recommended dose of NPK fertilizer was most effective in increasing vegetative growth parameters, such as plant height, number of branches, plant spread, as well as flower yield parameters like number of flowers, flower diameter, fresh and dry weight of flowers, flower yield, flowering duration, shelf life, and it also had the maximum benefit:cost ratio. Thus, use of inorganic fertilizers conjointly with bio-fertilizers and organic manures resulted in excellent vegetative growth and flower yield attributes in African marigold. View Full-Text
Keywords: Azospirillum; bio-fertilizer; cow urine; vermicompost Azospirillum; bio-fertilizer; cow urine; vermicompost
MDPI and ACS Style

Sharma, G.; Sahu, N.P.; Shukla, N. Effect of Bio-Organic and Inorganic Nutrient Sources on Growth and Flower Production of African Marigold. Horticulturae 2017, 3, 11.

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