M. BAKSHI*, V. K. WALI AND D. SHARMA
Division of Fruit Science, Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu, Main Campus,Chatha-180 009 (J&K), India
*(e-mail : manish.bakshi78@gmail.com; Mobile : 96220-22403)
ABSTRACT
An experiment was conducted at Research Farm of Division of Fruit Science, Faculty of Agriculture, Sher-e-Kashmir
University of Agricultural Sciences & Technology, Udheywalla, Jammu to evaluate the effect of integrated use of poultry manure, inorganic fertilizers and Azotobacter on growth, yield and quality of the Kinnow mandarin (Citrus nobilis Lour x Citrus deliciosa Tenore). Maximum increment in vegetative parameters viz., increment in plant height (14.30%), plant spread (14.05% NS and 14.0% EW) and canopy volume (38.95%) was recorded with the application of 100% nitrogen as urea and Azotobacter along with recommended dosage of SSP and MOP. However, the increment in vegetative parameters was at par with the application of 25% nitrogen as poultry manure and 75% nitrogen as urea along with Azotobacter application. Yield parameters viz., fruit length (5.84 cm), fruit width (6.53 cm), fruit weight (188.18 g), fruit volume (191.83 cc) and number of fruits per plant (165.5) were recorded maximum when 50% of nitrogen was applied as poultry manure and 50% nitrogen was applied as urea along with Azotobacter application. Maximum yield per plant (31.14 kg) was also recorded under the same treatment combination. All the fruit quality parameters were recorded maximum with the application of 50% nitrogen as poultry manure and 50% nitrogen as urea along with Azotobacter application. Maximum total phenol content (mgGAE/100 ml juice) was recorded under control. It was concluded that 50% nitrogen application through urea could be replaced with application of poultry manure along with application of Azotobacter.
Key words : Azotobacter, fruit quality, kinnow, poultry manure, yield