Abstract

Field experiments were conducted at wetlands of Tamil Nadu Agricultural University. Coimbatore during rabi and Summer seasons of 1992-93 to evaluate the efficiency of anilofos + 2,4-D EE mixture under direct seeded puddled rice and their economics of weed control. The results revealed that application of anilofos +2,4-D EE mixture as ready mix at 0.3 +0.4 kg applied at 10 days after sowing (DAS) recorded higher yield, and benefit cost ratio as that of hand weeding twice treatment. Higher doses of these herbicide mixtures caused phytotoxicity to the seedlings at earlier application. Delayed application at 12 DAS recorded lesser phytotoxicity but the weed control efficiency was less.

Keywords: Direct sown puddled rice, efficiency of herbicide mixtures, economics