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Indian Journal of Weed Science
Year : 1987, Volume : 19, Issue : 1and2
First page : ( 32) Last page : ( 36)
Print ISSN : 0253-8040.

Chemical Weed Control in Cumin1

Raghvani B. R., Senior Research Assistant, Kavani H. D., Associate Research Scientist, Malavia D.D., Associate Professor, Patel J. C., Research Scientist (Dry Farming)

Department of Agronomy, Junagadh, Gujarat Agricultural University, Rajkot

Gujarat Agricultural University, Rajkot

1. Contribution from Department of Agronomy, Gujarat Agricultural University, Junagadh Campus, Junagadh-352 001 (Gujarat).

Abstract

Six herbicides namely, fluchloralin, nitrofen, methabenzthiozuron, oxadiazon, bentbiocarb and oxyfluorfen were evaluated along with weed free condition and unweeded check in cumin crop on medium black soil at College Farm of Gujarat Agricultural University, Junagadh during 1981 to 1988 in rabi season. Among the herbicides tried in experiment, fluchloralin 0.9 kg a.i./ha (pre plant and pre emergence), oxadiazon 1.0 kg a.i./ha (pre emergence), benthiocarb 2.0 kg a.i.i'ha (pre emergence), bentbiocarb 2.0 kg a.i.’ha (pre emergence) and oxyfluorfen 0.48 kg a.i./ha (pre emergence) were found effective in hecking weed growth (71.5, 73.3. 83.2 and 70.3 and 75.3 per cent WCE, respectively) and produced grain yield comparable to weed free condition, in pooled results. Unweeded check recorded significantly the lowest grain yield (251 kg/ha) and was at par with methabenzthiozuron 1.4 kg a.i./ha (pre emergence). Weed free condition (frequent manual weedings) although recorded the highest grain yield but found un-economical as compared to herbicides tried in the experiment. Oxadiazon 1.0 kg a.i/ha as pre emergence found most economical and effective in weed control, too.

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