1Department Floriculture and Landscaping, College of Horticulture, Dr. Yashwant Singh Parmar Univer-sity of Horticulture and Forestry, Nauni, Solan-173 230, Himachal Pradesh.
2Division of Floriculture and Landscaping, Indian Agricultural Research Institute, New Delhi-110 012. e-mail: ritujam.uhf@redifrmail.com
Investigations on the effect of organic manures and biof ertilizers on growth and flowering of Standard carnation (Dianthus caryophyllus L.) were carried out at the Department of Floriculture and Landscaping, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan, during 2004–2005. The experiment was laid out in naturally ventilated polyhouse conditions in a factorial randomized block design on two cultivars namely, Raggio-de-Sole and Murcia with 14 treatments, replicated thrice. Carnation cultivar Raggio-de-Sole when grown in sand + soil + vermicompost (1:1:1) (v/v) + inorganic fertilizers + biofertilizers @ 2g/plant (Azospirillum and phosphate solubilizing microorganisms) produced maximum plant height (73.20 cm), number of flowers (6.06), length of flower stem (68.70 cm), flower size (7.30 cm), earliness in flowering (130.80 day), maximum percentage of A grade flowers (97.33) and vase life (11.00 d).
Biofertilizer, carnation, vermicompost, polyhouse
