Indian Journal of Agronomy
Year : 2001, Volume : 46, Issue : 2
First page : ( 380) Last page : ( 385)
Print ISSN : 0537-197X. Online ISSN : 0974-4460.

Effect of post-emergence herbicides on nutrient uptake by weeds and potato (Solatium tuberosum)

Banga R.S., Kumar Shalender, Yadav Ashok, Malik R.K.

Department of Agronomy, Chaudhary Charan Singh Haryana Agricultural University, Hisar-125004

Received:  July,  1998.

Abstract

A field experiment was conducted during winter (mbi) seasons of 1995–96 and 1996–97 at Hisar, to study the effect of post-emergence herbicides on nutrient uptake by weeds and crop in potato (Solanum tuberosum L.). The field was dominated mainly by broad leaf weeds like Chenopodium album L. (50%), Melilotus alba Desr. (35%) and Coronopus didymus (15%). All the weed-control treatments significantly reduced the dry weight of weeds and N, P and K uptake by weeds compared with weedy check. Among herbicides, minimum nutrient uptake by weeds and maximum by crop was recorded in the plots treated with linuron + metribuzin (2: 1) at 1.00 kg/ha, and it also recorded highest tuber yield which was at par with weed-free check. The maximum nutrient uptake by weeds and minimum by crop with lowest tuber yield was found in weedy check, followed by glufosinate.

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Keywords

Potato, Weed control, Tuber yield, Herbicides.

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