KOMPOSISI DAN PENYEBARAN GULMA DI LAHAN PERTANIAN TANAMAN PADI (Oryza sativa L) KECAMATAN RIMBA MELINTANG, KABUPATEN ROKAN HILIR

Abstract

Weeds are wild plants that grow and adapt to changing environmental conditions, and can interfere with cultivated plants. This study aimed to determine the composition and distribution of weeds in rice (Oryza sativa L) agricultural land, Rimba Melintang District, Rokan Hilir Regency. This study used survey method. Plots were determined by "purposive sampling". There were10 plots and two transects in two fields (A and B) with a size per plot was 5 m x 5 m. The study found 13 families and 20 species with a total of 811 individual species in land A. In addition, there were 11 families and 18 species with a total of 725 individual species in land B. The highest density value in land A was showed by P. repens species (13,39) and the highest density value in the field B was P. hemitomor species (14,21).