Vol. 15 No. 1
Influence of different doses of pyrazosulfuron-ethyl and establishment methods on the yield of lowland rice (Oryza sativa L.)
Author(s): T. MALEMNGANBI AND J. LHUNGDIM
Abstract: Field experiment to determine “influence of different doses of pyrazosulfuron-ethyl and establishment methods on the yield of lowland rice” was conducted at the Research Farm of College of Agriculture, Central Agricultural University, Imphal, Manipurduring the Kharif season of 2017. The experiment comprised of four doses of pyrazosulfuron-ethyl i.e. 0, 15, 25 and 35 g a.i.ha-1 and threecrop establishmentmethods i.e. broadcasting, drum seeding and transplanting method.The result revealed that among the different doses, pyrazosulfuron-ethyl @ 35g a.i.ha-1 was most effectivein suppressing weeds, decreasing dry matter and highestweed control efficiency. Among the different establishment methods, transplanting was found to be the most effective method. It was also evident that the combined effect ofpyrazosulfuron-ethyl @ 35g a.i.ha-1 along with transplanting method recorded significantly higher yield attributes and grain yield. However,pyrazosulfuron-ethyl @ 35g a.i.ha-1 under drum seeding resulted in highest B:C ratio.
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