The presence of water in the field appears to inhibit the growth of weeds, which are largely terrestrial or semi-aquatic species. The lack of retention of water in the Midland Laterite Hillock Paddy Field (MLHPF) favored the excess growth of weeds. But in the other two regions (ie FWPF and CPF), the weed growth was less because these regions were filled with water up to a certain extent during the southwest monsoon.