NGHIÊN CỨU HIỆU Lực CỦA MỘT SỐ THUỐC TRỪ CỎ DẠI HẠI CÂY GAI XANH (BOEHMERIA NIVEA (L.) GAUD)

Abstract

Weed is one o f the most important pests ỉn Boehmeria nivea (L.) Gaud. This study has identified the composition o f weeds in Boehmeria nivea (L.) Gaud in Ngoc Lac district, Thanh Hoa province including 12 species, 7 families, 4 orders. The species o f weeds in Boehmeria nivea (L.) Gaud are mainly Cyperus rotundus, Eleusine indica, Ageratum conyzoides, Eclipta prostrata. The results showed that Dual Gold 960EC was the most effective herbicide. Treatments with herbicides are more economical compared to the control of. With Dual Gold 960 EC gave the highest profit with net profit reaching 18,520,000 VND, greater than that o f the control by 5,320,000 VND and profit margin increasing by 4.09 times).
Keywords: Weed, Boehmeria nivea (L.) Gaud, Cyperus rotundus, Eleusine indica, Ageratum conyzoides, Eclipta prostrata, herbicide.