EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON GROWTH AND YIELD OF SWEET CORN (ZEA MAYS L. SSP.SACCHARATA)

Abstract

A field experiment was conducted at Udaipur during rainy season of 200. The soil was clay loam having alkaline reaction (pH 7.8). It was medium in total nitrogen (260.40 kg/ha), available phosphorus (18.26 kg/ha) and high in available potassium (283.30 kg/ha). The experiment comprised of 20 treatment combinations consisting of 4 fertility levels (50 + 25, 70 + 35. 90 + 45 and 110 + 55 kg N + P2O5/ha) and 5 nutrient sources (fertilizers. Vernicompost, 50% fertilizers + 50% vermicompost, 40% fertilizers + 40% vermicompost + seed treatment with Azotobacter + PSB and 50% fertilizer + 50% vermicompost + seed treatment with Azotobacter + PSB).The maximum number of cobs/plant (1 .2) was seen by giving the entire quantity of nutrients through fertilizers which was at par with 50% fertilizer + 50% vermicompost with and without seed inoculation. The maximum single cob weight, green crop, green fodder and biological yields were recorded when the entire quantity of nutrient was applied through chemical fertilizers which was significantly greater in comparison to the different other sources in question except fertilizers + vermicompost (50:50) + seed inoculation. Also the minimum yields were obtained by 100% vermicompostapplication.