alexa Real-time N Management In Low Land Rice (Oryza Sativa L.) Through LCC And SPAD Meter
ISSN: 2168-9881

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

Shantappa Duttarganvi, A S Channabasavanna, A S Halepyati, V P Nagalikar and Satynarayan Rao
Posters: Agrotechnol
DOI: 10.4172/2168-9881.S1.008
Abstract
An investigation on real-time nitrogen management in rice through LCC (Leaf Colour Chart) and SPAD (Soil and Plant Analysis Development Meter) was carried out at the new area Farm, College of Agriculture, Raichur, Karnataka. Treatment consists of five levels of LCC and five levels of SPAD meter compared with farmers and recommended method of nitrogen application. Significantly higher grain yield per hectare was noticed with farmers (44.53 q ha -1 ) method of nitrogen application and it was on par with LCC 5 (42.40q ha -1 ), LCC 5.5 (43.33 q ha -1 ), SPAD 37.5 (42.50 q ha -1 ) SPAD 40 (43.80q ha -1 ) and recommended method (43.07 q ha -1 ) when compared to other methods of N application. The higher grain yield in rice was mainly attributed to higher yield attributes like number of panicles per hill, grains per panicle and test weight. Results show that plant need-based N management through LCC and SPAD meter reduces N requirement of rice by 20 and 45.5 per cent over recommended and farmers method of N application. The application of N through LCC 5 or SPAD 37.5 and recommended method recorded higher agronomic and physiological efficiency (74.8, 69.7 & 41.9%, respectively) & (20.8, 22.8 & 13.6 per cent, respectively) over farmers method. This might be due to increased recovery of applied N and this in turn manifested in the higher grain and straw yield of rice.
Biography

Shantappa Duttarganvi has completed his M.Sc. (Agri) from UAS, Raichur and presently pursuing Ph.D. in Department of Agronomy, College of Agriculture, Raichur, UAS, Raichur, Karnataka.

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