JOURNAL of Soil Biology and Ecology 

Influence of FYM, vermicompost and inorganic fertilizers on the incidence of insect pests of soybean

Author: P.M. PRASANNA

Abstract:

The use of organic manures or their combination with fertilizers as tools of integrated pest management in soybean crops is an emerging field due to the popularity of organic products and the long-term sustainability of agriculture. The field experiment was conducted at the GKVK campus, University of Agricultural Sciences, Bengaluru. The soybean crop was raised under 12 treatments with organic manures like Farm yard manure (FYM) and vermicompost, in various combinations or alone. To know the impact of these treatments on the pest dynamics was observed by estimating the populations and damage by thrips, pod borer, and stem flies by standard sampling methods. Soil application of 50% of Rec. FYM (0.51 thrips/plant) recorded a significantly lower thrips population compared to other treatments except for control (0.81), Rec. vermicompost + Rec. fertilizer (0.79), and the package of practices (0.75) followed plots. The peak population of thrips was recorded on 47 DAG. Plants from 50 % rec. FYM + 50 % rec. Vermicompost-applied plots (6.24%) recorded significantly lower secondary tunnelling than control (11.07%). The test weight, number of pods, and grain yield were also variable among treatments, with the highest grain yield recorded from Rec. FYM + phorate + rec. Fertiliser (32.27 q/ha).

References:

Balasubramanian, G.M., Balasubramanian, M., Shankaran, K. and Manickam, J.S., 1986. Effect of fertilization on the incidence of shoot fly and stem borer on rain-fed sorghum. Madras Agril. J., 73:471-473.

Chand, P., Sinha, M.P. and Kumar, A., 1979. Nitrogen fertilizers reduce shoot fly incidence in sorghum. Sci. Culture, 45:62-63.

Gangrade, C.A., 1974. Insect Pest of Soybean, J. N. Krishi Vishwavidyala ya, Jabalpur, Technical Bulletin, 24:88.

Garg, D.K., 1985. Soybean insect pests in Uttar Pradesh hills of Western Himalayas. Pestology, 9:5-7.

Huyen, N.P.D., 2001. Studies on the effect of selected insecticides on the abundance and diversity of insect pests. M.Sc.(Agri) Thesis, Uni. Agric. Sci., Bangalore, 198 p.

Jayappa, A.H., 2000. Studies on the soybean stem fly, Melanogromyza sojae (Zehnter) (Diptera: Agromyzidae) with reference to crop loss assessment, screening of varieties, and management.M.Sc.(Agri)Thesis, Uni. Agric. Sci., Bangalore,198 p.

Joshi, O.P., 2003. Future perspectives of soybean in India. Soybean Res., 1:29-42.

Kamala, N.V., 2000. Development of integrated pest management modules for soybean (Glycine max (L.) Merril).M.Sc.(Agri) Thesis, Uni. Agric. Sci.,Bangalore,167 p.

Luckmann, W.H., 1971. The insect pests of soybeans. World Farming, 13:18-22.

Prasanna, P.M., Kumar, N.G. and Shivamurthy, D., 2012. Incidence of insect pests in organic and inorganic amendments applied soybean (Glycine max L. Merril) ecosystem. Res. J. Agril. Sci., 3:344-348.

Rai, P.S., Reddy, K.V.S. and Govindan, R., 1973. A list of insect pests of soybean in Karnataka. Curr. Res., 2:97-98.

Ramakrishna, C., Radhakrishna, T. and Ramadoss, G., 1983, Effect of Nitrogen, Rhizobium inoculation and phosphorous level on the damage of pigeon pea pods by Helicoverpa armigera. Int. Pigeon Pea Newsletter, 2:62.

Rangarajan, S. and Venugopal, M.S., 1964. Observation on the effect of manuring and irrigation on the incidence of the cotton leaf hopper, Empoasca devastans Dist., and cotton aphid, Aphis gossypii Glover, at different periods of crop growth. Madras Agri. J., 51:189-196.

Singh, O.P., 1999. Perspective and prospects of insect pest control in India with reference to a sustainable environment in India. In: Proceedings of World Soybean Conference VI, Chicago, U.S.A., pp. 639-640.

Singh, O.P. and Singh, K.J., 1990. Insect pests of soybean and their management. Indian Farming, 39:9-14.

Sunderaj, R.N., Nagaraju, S., Venkataramu, M.N. and Jagannath, M.K., 1972. Design and Analysis of field experiments. Uni. Agri. Sci. Ser., Bangalore, 22:419.

Thippaiah, M., 1997. Bio-ecology of the semi-looper, Thysanoplusia orichalcea (Fabricus) (Noctuidae: Lepidoptera) with observations on other pest complexes of soybean and their management. M.Sc.(Agri) Thesis, Uni. Agric. Sci., Bangalore, 142.