Keanekaragaman dan Dominasi Gulma pada Pertanaman Jagung di Lahan Kering Kecamatan Marisa Kabupaten Pohuwato

Abstract

Weed is one of the plant-disturbing organisms (OPT) or plant pest bodies. Weeds can grow around plants, including corn plants. This study aims: 1) To find out the weeds that dominate the corn crop in Marisa Subdistrict, Pohuwato Regency, 2) To find out the weed diversity index that grows in the corn crop area. The research method used is a survey and purposive sampling method (determination of research locations and samples intentionally) based on the level of adoption of farmers in weed control in corn crops. The results showed that the highest SDR value in maize plantations aged 45 HST was found on Kusa-Kusa Grass (Echinochloa colonum) which was 33%. Whereas the highest SDR value in corn crop aged 55 HST is found in Teki (Cyperus rotundus) which is 51%. Diversity Index (H ') on 45 HST maize cropping area is 1.631 and corn planting area of 55 HST age is 1.763 which means H' is classified as medium (1 <3).