D. Senthilkumar, S. Kalaisudarson, A. Sundari and T. Muthukumararaja
Abstract
Field experiment was carried out at Vangudi village of Udaiyarpalayam taluk, Ariyalur district, Tamil Nadu during July to October 2022 to study the effect of various weed management practices on weed indices in sweet corn (Zea mays var. saccharata). The soil of the experimental field was sandy clay loam in texture with a pH of 7.8. The experiment was laid out in randomized block design with ten treatments and replicated thrice.Among the different treatments, pre-emergence application of metolachlor 50% EC @ 1 kg a.i. ha-1 on 3 DAS+ Intercropping (Blackgram)(T8) which helps in decreasing different weed population and diminishing the weed biomass which increases the green cob yield. Pre-emergence application of metolachlor 50% EC@ 1 kg a.i. ha-1 on 3 DAS + Intercropping (Blackgram) recorded the higher weed control index.