author(s)
Rahul Kumar, RS Singh, Neelam Yadav and Satendra Kumar

abstract
The investigation was carried on impact of nutrient application on aphid incidence on different varieties of Indian mustard, Brassica juncea during Rabi 2010-11 and 2011-12 at Student’s Instructional Farm, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur (U.P.). Crop having only nitrogen application @ 80 kg/ha attracted maximum aphid of 51.70/10 cm twig in 2010-11 and 53.43/10 cm twig in 2011-12. However crop applied with nitrogen 80 kg/ha, phosphorus 40 kg/ha, potash 40 kg/ha and sulphur 30kg/ha attracted minimum aphid of 34.45/10 cm twig in 2010-11 and 38.19/10 cm twig in 2011-12. It may be concluded that the expression of growth, yield and net profit of mustard under the agro-climatic conditions of central plain zone of U.P. can be enhanced by application of balanced dosage of nutrients at timely application.