alexa Quantification Of Contribution Of Azotobacter For Reducing The Requirement Of Nitrogen Fertilizer In Potato Production In Mid Hills Of Himachal Pradesh
ISSN: 2168-9881

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2nd International Conference on Agricultural & Horticultural Sciences
Radisson Blu Plaza Hotel, Hyderabad, India February 03-05, 2014

M. K. Jatav and B. D. Sharma
ScientificTracks Abstracts: Agrotechnol
DOI: 10.4172/2168-9881.S1.007
Effectiveness of potato seed inoculation with Azotobacter for improving potato yield was assessed in field experiments under graded doses of nitrogen application viz 30, 60, 90 and 120 kg N/ha. The data revealed that Azotobacter inoculation significantly increased the tuber yield with graded doses of nitrogen compared with control. Application of 120 kg N/ha along with Azotobacter inoculation gave highest tuber yield (211.72 q/ha) which was 6 q/ha higher yield and statistically at par with 120 kg N/ha (205.75 q/ha). Application 120 kg N/ha was statistically was at par with 90 kg N/ha + Azotobacter (201.56 q/ ha). Higher mean of yield, nitrogen uptake, nitrogen use efficiency and apparent nutrient recovery were observed from seed inoculation with Azotobacter as compared to without seed inoculation with Azotobacter . This study indicates the beneficial effects of Azotobacter inoculation on tuber yield and 12.5 to 18.8 kg/ha nitrogen can be saved with the seed inoculation by Azotobacter for yield target ranges from 150 to 200 q/ha. It may be concluded that combined application of nitrogen fertilizer along with tuber inoculation with Azotobacter can be effective in reducing the nitrogen fertilizer dose by approximately 19 kg /ha. Besides saving fertilizer, this treatment also showed increased nitrogen use efficiency, apparent nutrient recovery and per cent yield response.
M. K. Jatav has completed his Ph.D. at the age of 30 years from Maharana Pratap University of Agriculture and Technology, Udaipur (Rajasthan) 313001. He is Senior Scientist of Soil Science in Crop Production Division at Central Institute for Arid Horticulture (ICAR), Bikaner (Rajasthan), India, a premier Arid Horticulture institute/organization. He has published more than 50 papers in reputed journals.
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