Weed diversity as affected by tillage and ammonium glufosinate herbicide

ABSTRACT Farmers in Indonesia generally spray herbicides to control weeds and use tillage during the early stages of crop cultivation; consequently, these activities affect weed composition diversity. This study aimed evaluate dominance diversity index obtain abundance correlations according soil chemical characteristics, as well effect ammonium glufosinate herbicide, different systems. A non-factorial randomized block design was used, consisting no-tillage (NT), 1-time (T1) 2-times (T2), with three replications. The Cyperus rotundus Ageratum conyzoides species were dominant tillages. indices 2.261, 2.196 2.234 (moderate/stable condition), respectively for NT, T1 T2. For T2, there increases 2.82-folds, 41 populations 2.43-folds, A. conyzoides, Cynodon dactylon Euphorbia heterophylla, when compared while a decrease observed grasses T2 (50.71 26.05 %, respectively). Moreover, positive significant correlation E. heterophylla cation exchange capacity (0.727). In contrast, four new (Glyceria maxima, Leersia oryzoides, Scoparia dulcis Anthoxanthum oculatum) found due application,