Vol. 12, Issue 7 (2023)

Author(s):
Md. Hedayetullah, Javed Akhtar, Champak Kumar Kundu, Bhaskar Rajbanshi and Kanu Murmu

Abstract:
India is the second largest producer of potato in the world. The productivity of the major potato growing region (Indo-Gangetic Plains) is often hampered due to weed infestation during early crop growth stage. Thus, chemical weed control often becomes necessary to tackle this problem. A field experiment was conducted in AB Block Farm, BCKV, Kalyani to evaluate the effectiveness of some selective and non-selective herbicide in aspect of broad-spectrum weed management. Different weed parameters were recorded for different grassy, broadleaf and sedge weed species. Dominant weed species found in the field were Cyperus rotundus, Cynodon dactylon, Parthenium hysterophorus, Chenopodium album, Physalis minima and Cucumis melo. The outcomes of the result indicated that Paraquat dichloride 24% SL @ 2 L ha^-1 had a lower weed density (no. m^-2) and weed dry weight (g m^-2). This treatment also recorded a higher weed control efficiency (%) than the other treatments. Paraquat dichloride 24% SL @ 2 L ha^-1 also recorded a higher tuber yield over the other treatments.