Abstract
The present study was carried out in five Krishi Vigyan Kendras of different districts of Assam, viz. Dibrugarh, Jorhat, Nagaon, Nalbari and Chirang; to standardize the fertilizer requirement by dragon fruit plants in Assam condition. The growth and yield parameters recorded over two years revealed that the growth as well as the yield attributing characters were significantly influenced on application of Urea: SSP: MOP @70: 90: 40 g per plant in first year followed by Urea: SSP: MOP @ 150:150:300 g per plant from second year onwards (Treatment T2 ) as compared to the other treatments such as T0 : Control, T1 : 53:68:30 Urea, SSP, MOP g/plant(1st year) and 113:113:225 Urea, SSP, MOP g/plant (2nd year) and T3 : 88:113:50 Urea, SSP, MOP g/plant (1st year) and 188:188:375 Urea, SSP, MOP g/plant (2nd year).The Maximum stem diameter of 6.3 cm after 2nd year of establishment was found on application of T2 dose along with the maximum number of fruits per pole (25.82), maximum average fruit weight (272.04 g) and highest annual yield per pole (7.103 kg) as well as maximum fruit volume (279.6 cc) and the highest pulp: peel ratio (4.11). Therefore, considering the significance of T2 dose of fertilizer in various districts of Assam, it can be concluded that treatment T2 can be considered as the appropriate dose of fertilizer to be considered for Assam condition.
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