1Directorate of Rice Research, Rajendranagar, Hyderabad-500 030, Andhra Pradesh
2Division of Agronomy, Indian Agricultural Research Institute, New Delhi-110 012, Delhi
3RRS, Indian Grassland and Fodder Research Institute, Dharwad-580 005, Karnataka
*Email: bandla_gan@hotmail.com
Online published on 1 February, 2014.
A two year field study made during kharif seasons of 2007 and 2008 on different modes of pigeonpea production indicated that inorganic mode of production on an average had 189.7 and 68.4% higher seed yields (1.42 t/ha) as compared to organic mode of production without amendments (0.49 t/ha) and with FYM/vermicompost (0.84 t/ha) application. The pigeonpea productivity in organic mode of production with FYM and vermicompost (VC) as nutrient sources gradually improved that was evident from reduced yield gap between these treatments as compared to inorganically produced crop from 43.5 in first year to 37.9% in second year. There was significant build up of organic carbon content and available P in the soil with FYM and VC application. However, the economics were in favour of inorganic mode of production during the conversion period.
Pigeonpea, FYM, vermicompost, rock phosphate, Rhizobium, phosphate solubilizing bacteria
