Effect of weed-control practice and irrigation levels on weeds and yield of wheat (Triticum aestivum)
DOI:
https://doi.org/10.59797/ija.v52i1.4891Keywords:
Wheat, Weeds, Irrigation, Weed control, HerbicideAbstract
A field experiment was conducted to study the effect of different weed-control practices and irrigation levels on weeds and yield of wheat (Triticum aestivum L. emend. Fiori & Paol.) in winter 2002-03 and 2003-04 in Paki- stan. The experiment comprised four weed-control practices, viz. weedy check, pre-emergence application of pendimethalin, post-emergence application of isoproturon + carfentrazone ethyl and manual weed control (two hoeings), and four irrigation levels, viz. 0.50, 0.75, 1 .OO and 1.25 irrigation water (IW): cumulative pan evapora- tion (CPE). The manual hoeing resulted in minimum weed density and dry weight of weeds, and gave maximum grain yield of 62.46 and 61.45 qlha due to more spike-bearing tillers, 1,000-grain weight and number of grains1 spike, but was statistically similar to post-emergence application of isoproturon + carfentrazone ethyl. The effect of irrigation levels on weed density and dry weight of weeds was non-signifcant in 2002-03 but was significant in 2003-04. The maximum grain yield was obtained at 1.25 IW:CPE.References
Anonymous. 2005. Agricultural Statistics of Pakistan, pp. 9-13. Ministry of Food and Agricultural Division (Planning Unit), Government of Pakistan, Islamabad.
Choubey, N.K., Tiipathi, R.S. and Ghosh, B.C. 1998. Influence of irrigation scheduling and weed control methods on growth and yield of wheat (Triticum aestivum). Indian Journal of Weed Science 30(1-2): 28-31.
Das, T.K. and Yaduraju, N.T. 1999. Effect of weed competition on growth, nurient uptake and yield of wheat as affected by ir-rigation and fertilizers. Journal of Agricultural Science, Cam- bridge 133(1): 45-51.
Dhindwal, AS., Singh, J., Malik, A.S. and Patel, A.L. 1993. Effi- cacy of weed management practices in wheat and peatlmillet under different irrigation levels. Proceedings of International Symposium by Indian Society of Seed Science, held at Hisar, India, during 18-20 November, vol. ii, pp. 263-264.
Hooda, IS. and Agrawal, S.K. 1991. Studies on population and dry matter production of weeds as affected by variation in irriga- tion, weedicides and fertility levels. Haryana Journal of Agronomy 7(1): 63-69.
Pandey, J. and Verma, A.K. 2002. Effect of atrazine, metribuzin, sulfosulfuron and trolkoxydim on weeds and yield of wheat (Triticum aestivum). Indian Journal ofAgrononzy 47(1): 72-
Singh, S., and Bhan, V.M. 1998. Response of wheat (Triticum aestivumL.) and associated weeds to irrigation regime, nitro- gen and 2,4-D. Indian Journal ofAgronomy 43(4): 662667.
