Effect of organic manures and inorganic fertilizers on growth, flowering and yield of gladiolus (Gladiolus grandiflorus L.)
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Date
2016-06
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
The present investigation was carried out at Model Floriculture Centre, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, District- Udham Singh Nagar, Uttarakhand, during October 2015 to April 2016. Investigation was laid out in randomized block design (RBD) with 9 treatment and three replications to study the effect of organic manures and inorganic fertilizers on growth, flowering and yield of gladiolus (Gladiolus grandiflorus L.)”. Observations were recorded on various parameters of vegetative growth, flowering and corms attributes. At 60 days the maximum plant height (76.87 cm) was obtained in T2 (Farmyard Manure + 75% Recommended Dose of Fertilizers) while the maximum leaves number/plant (13) was exhibited by T5 (50% Farmyard Manure + 50% Neem Cake). Regarding flowering characters the treatments T6 (75% Farmyard Manure + 25% Poultry Manure) responded best result especially in commercial traits like spike length (100.83 cm), number of floret/spike (15.58) and rachis length (56.17 cm). In respect of corms characters there were a positive response by the application of various organic manures. The maximum number of corm/plant (1.9) was recorded in T8 (75% Vermicompost + 25% Poultry Manure) while maximum weight of single corm (146 g) was found in T5 (50% Farmyard Manure + 50% Neem Cake). The equal proportion of all organic manures [T9 (25% Farmyard Manure + 25% vermi compost + 25% Neem Cake + 25% Poultry Manure)] recorded maximum number of cormels/plant. On the basis of present findings it may be concluded that there was a positive effect of the application of organic manures on vegetative growth, flowering, and corms characters as well as to sustain the soil fertility by the residual presence of nitrogen, phosphorus, potassium, organic carbon and maintenance of normal pH and electrical conductivity of the soil.
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