Evaluation of the efficacy of Pyanchor EC (Piribenzoxim) and Solito 320 EC (Pretilachlor) as post-emergence weed control chemicals in lowland rice production

Abstract

Two post-emergence herbicides (Pyanchor EC having piribenzoxim as its active ingredient and Solito 320EC, having pretilachlor as its active ingredient) were evaluated for efficacy on weeds in lowland rice at different rates. The experiment was conducted in 2005 and 2006 using Randomized Complete Block Design at the experimental field of National Cereals Research Institute, Badeggi located at Lat 09⁰ 45^l N; Long 06⁰ 7^l E, ALT 50.57 MSL. The variety of rice used was FARO 52 (WITA 4). None of the herbicides/ rates has any Phytotoxicity effect on rice. The herbicides controlled weeds better than the untreated control.  As post-emergence herbicide in lowland rice, either Pyanchor EC or Solito 320EC is recommended to be used at 1.5l/ha. The low rate of application and the small quantity of water needed per hectare (200 litres) provide advantages of reduced cost of input into weed management and enhanced productivity in lowland rice