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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2020, Volume : 8, Issue : 2
First page : (224) Last page : (232)
Article doi: : http://dx.doi.org/10.18782/2582-2845.8021

Evaluation of Different Herbicides against Complex Weed Flora in Spring Planted Sugarcane

Amit Dhankar*, Mehar Chand, S. S. Punia, Deepak Loura and Sunil
Department of Agronomy, CCS Haryana Agricultural University, Hisar-125001, India
*Corresponding Author E-mail: amitdhankarhau@gmail.com
Received: 3.03.2020  |  Revised: 12.04.2020   |  Accepted: 17.04.2020 

 ABSTRACT

The present study entitled “Evaluation of different herbicides against complex weed flora in spring planted sugarcane” was carried out during 2018-19 at Regional Research Station, Karnal of CCS Haryana Agricultural University, Haryana, India. The experiment was laid out in randomized complete block design with three replications in order to evaluate the effect of different herbicides on weed, growth and yield of sugarcane and to observe the phytotoxicity (if any) of different herbicides on sugarcane crop. The experiment was conducted on sugarcane variety CoH 167 with eighteen weed control treatments. The treatments were metribuzin 1.0 kg ha-1  PRE (T1), metribuzin + halosulfuron 67.5 g ha-1 (TM) PRE (T2), atrazine 2.0 kg ha-1  PRE (T3), atrazine + halosulfuron (TM) PRE (T4), metribuzin + halosulfuron PoE at 40 DAP (T5), atrazine + halosulfuron PoE at 40 DAP (T6), metribuzin PRE fb halosulfuron PoE 40 DAP (T7), atrazine PRE fb halosulfuron PoE (T8), sulfentrazone 720 g ha-1 PRE fb hoeing at 45 DAP fb 2,4-D ester 1.0 kg ha-1 at 60 DAP (T9), sulfentrazone 720 g ha-1 PRE fb hoeing at 45 DAP fb almix 4g ha-1 at 60 DAP (T10), atrazine PRE fb 2,4-D ester at 60 DAP (T11), hoeing after first irrigation fb atrazine after second irrigation (T12), glyphosate 1680 g ha-1 + metribuzin + surfactant (TM) at 15 DAP EPoE (T13), atrazine PRE fb metsulfuron + carfentrazone 25 g ha-1 PoE at 60 DAP (T14), atrazine PRE fb hoeing at 45 DAP fb topramezone 25 g ha-1 PoE at 60 DAP (T15), paraquat  EPoE 15 DAP fb atrazine PoE at 60 DAP (T16), Three hoeing at 30, 60 and 90 DAP (T17) and unweeded control (T18).
            The major weed flora recorded in the experimental field were Cyperus rotundus, Dactyloctenium aegyptium, Echinochloa colona, Brachiaria reptans, Amaranthus viridis, Portulaca oleracea, Convolvulus arvensis, Euphorbia microphylla and Ipomoea purpurea. Cyperus rotundus was the major weed constitutes 89.4 to 92% weed density at different stages of crop growth. The treatments metribuzin + halosulfuron (TM) PoE (T5), metribuzin PRE fb halosulfuron PoE (T7), atrazine PRE fb halosulfuron PoE (T8), sulfentrazone as PRE fb hoeing at 45 days fb 2,4-D  at 60 DAP (T9) gave the excellent control of complex weed flora of sugarcane and hence, higher weed control     efficiency (%) and per cent weed control was recorded from these treatments compared to rest of the treatments. None of the applied weed control treatments affect germination of the crop at 20 and 40 DAP. Among all the treatments maximum cane yield was obtained from three hoeing treatment -T17 (92.9 t ha-1) and among herbicidal treatment T5 (91.6 t ha-1), T7 (90.8 t ha-1) were recorded with higher yield and benefit cost ratio. None of the applied herbicide alone, in combination and in sequence had any phytotoxic effect on sugarcane plant crop, except metsulfuron + carfentrazone (T14).

Keywords: Sugarcane, Halosulfuron methyl, Metribuzin, Atrazine, Sulfentrazone, Phytotoxicity, Weed control efficiency, % weed control, Cane yield

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Dhankar, A., Chand, M., Punia, S.S., Loura, D., & Sunil (2020). Evaluation of Different Herbicides against Complex Weed Flora in Spring Planted Sugarcane, Ind. J. Pure App. Biosci. 8(2), 224-232. doi: http://dx.doi.org/10.18782/2582-2845.8021