Impact of Organic and Inorganic Sources of Nutrients on Major Pest and Disease Intensity Under Aerobic Rice Cultivation Basha S. Jaffar1,*, Basavarajappa R.1, Patil R.K.2 1Department of Agronomy, College of Agriculture, UAS, Dharwad-580005, Karnataka, India 2Institute of Organic Farming, College of Agriculture, UAS, Dharwad-580005, Karnataka, India *email: shaik.jaffarbasha@gmail.com
Online published on 23 December, 2016. Abstract A field experiment was conducted to determine the effect of organic and inorganic sources of nutrients on pest and disease intensity under aerobic rice cultivation during kharif, 2013 and 2014 at Main Agricultural Research Station, Dharwad. The experiment consisted of twenty four treatment combinations comprising of six main plot treatments as RDF(100: 50: 50 kgN, P2O ha−1), RDF+ FYM O5, K2(5 t ha−1) + microbial consortium, FYM (1/3) + vermicompost (1/3) + green leaf manure (1/3) equivalent to RDN, FYM (1/3) + vermicompost (1/3) + green leaf manure (1/3) equivalent to RDN + microbial consortium, FYM (1/3) + vermicompost (1/3) + green leaf manure (1/3) equivalent to RDN with FYM (5 tha1) and FYM (1/3) + vermicompost (1/3) + green leaf manure (1/3) equivalent to RDN with FYM + microbial consortium and four sub plot treatments as soil application of jeevamrut @ 500 l ha−1, foliar application of cow urine @ 500 l ha−1, soil application of biodigester @ 2500 l ha−1 at 30, 60 and 90 DAS and control (no liquid manure application) which were replicated thrice. Application of FYM (1/3) + vermicompost (1/3) + green leaf manure (1/3) equivalent to RDNwith recommended FYM (5 t ha−1) + microbial consortium and foliar application of cow urine @ 500 l ha−1 at 30, 60 and 90 DAS recorded lower leaf folder, stem borer, blast incidence and higher spider population. Top Keywords Aerobic rice, Chemical fertilizers, Organic sources, Pest and disease intensity. Top |