Weed dynamics, productivity and economics of quality protein maize (Zea mays) as affected by weed and nutrient-management
Keywords:Atrazine, Alachlor, Nutrient management, Quality protein maize, Tembotrione, Weed management
A field experiment was conducted during 2015–16 and 2016–17 at Instructional Farm (Agronomy), Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan, to evaluate the effect of weed and nutrient-management on quality protein maize. The experiment consisting of 9 weed-management treatments, viz. weedy check, hand-weeding at 15 days after sowing (DAS) and 35 DAS, tembotrione 0.125 kg/ha at 20 DAS, alachlor 2 kg/ha as pre-emergence (PE) followed by (fb) hand-weeding at 35 DAS, atrazine 0.5 kg/ha as PE fb hand-weeding at 35 DAS, tembotrione 0.125 kg/ha at 20 DAS fb hand-weeding at 35 DAS, alachlor 2 kg/ha + atrazine 0.5 kg/ha as PE fb hand-weeding at 35 DAS, alachlor 2 kg/ha as PE fb tembotrione 0.125 kg/ha at 20 DAS and atrazine 0.5 kg/ha as PE fb tembotrione 0.125 kg/ha at 20 DAS with 3 nutrient-management treatments, viz. NPK, NPK + Zn and NPKS + Zn, were replicated thrice in a split-plot design. The maximum reduction of weed density (8.35) and dry-matter (133.6 g) was recorded with atrazine 0.5 kg/ha fb tembotrione 0.125 kg/ha. Atrazine 0.5 kg/ha fb tembotrione 0.125 kg/ha resulted in maximum number of grains/ cob (367.91), grain weight (82.79 g), 1,000-seed weight (212.03 g) and shelling % (76.58) and ensued significantly higher grain (4.5 t/ha) and stover (7.5 t/ha) yields. Application of NPKS + Zn showed significantly higher yield attributes as well as grain (4.3 t/ha) and stover (7.2 t/ha) yield.
Das, A., Patel, D.P., Munda, G.C. and Ghosh, P.K. 2010. Effect of organic and inorganic sources of nutrients on yield, nutrient uptake and soil fertility of maize (Zea mays)–mustard (Brassica campestris) cropping system. Indian Journal of Agricultural Sciences 80(1): 85–88.
Duraisami, V.P., Chitdeshwari, T., Subramanian, K.S. and Rajeswari, R. 2007. Research notes: Effect of micronutrients and sulphur on yield and nutrient uptake by maize in an alfisol. Madras Agricultural Journal 94(7): 283–288.
Gul, S. and Khanday, B.A. 2015. Influence of fertility levels and weed-management practices on yield and yield attributes of rainfed maize. Scientific Research and Essays 10(24): 659– 663.
Jat, S.L., Parihar, C.M., Singh, A.K., Jat, M.L., Sinha, A.K., Mishra, B.N., Meena, H., Paradkar, V.K., Singh, C.S., Singh, D. and Singh, R.N. 2013. Integrated nutrient-management in quality protein maize (Zea mays L.) planted in rotation with wheat (Triticum aestivum L.). Indian Journal of Agricultural Sciences 83(4): 391–396.
Joshi, E., Vyas, A.K., Dass, Anchal and Dhar, Shiva. 2016. Nutrient omission effects on yield, water productivity and profitability of maize (Zea mays). Indian Journal of Agronomy 61(2): 204–209.
Mundra S.L., Vyas, A.K. and Maliwal, P.L. 2002. Effect of weed and nutrient-management on nutrient uptake by maize (Zea mays) and weeds. Indian Journal of Agronomy 47(3): 378– 383.
Owla, M.L., Nepalia, V. Chouhan, G.S. and Singh, D. 2015. Effect of fertility levels, nutrient sources and weed control on weed dynamics and yield of quality protein maize (Zea mays) and relative nitrogen and phosphorus uptake. Indian Journal of Agronomy 60(2): 267–272.
Rana, S.S., Badiyala, D., Sharma, N., Kumar, R. and Pathania, P. 2017. Impact of tembotrione on weed growth, yield and economics of maize (Zea mays L.) under mid hill conditions of Himachal Pradesh. Pesticide Research Journal 29(1): 27–34.
Saini, J.P. and Angiras, N.N. 1998. Efficacy of herbicides alone and in mixture to control weeds in maize under mid-hill conditions of Himachal Pradesh. Indian Journal of Weed Science 30(1 and 2): 65–68.
Singh, A. K., Parihar, C. M., Jat, S. L., Singh, B. and Sharma, S. 2015. Effect on weed dynamics, productivity and economics of the maize (Zea mays)–wheat (Triticum aestivum) cropping system in Indo-gangetic plains. Indian Journal of Agricultural Sciences 85(1): 87–92.
Singh V.P., Guru, S.K., Kumar, A., Banga, A. and Tripathi, N. 2012. Bio-efficacy of tembotrione against mixed weed complex in maize. Indian Journal of Weed Science 44(1): 1–5.
Tahir, M., Shabbir, G., Nadeem, M.A., Waseem, M., Javid, H.M.R. and Rehman, H. 2011. The effect of intensity of tillage and herbicide application on spring planted maize (Zea mays L.) and its weeds. Pakistan Journal of Life and Social Sciences 9(2): 109–115.
Verma, V.K., Paradkar, V.K., Reddy, R.K., Tiwari, D.K. and Rout, R.L. 2012 integrated nutrient-management for improving yield of quality protein maize. (In) Extended Summaries: third International Agronomy Congress: Agriculture Diversification, Climate Change Management and Livelihoods, held during 26–30 November 2012, at the Indian Society of Agronomy, New Delhi. Vol. 3, pp. 1,243–1,244.
Waddington, M.A. and Young, B.G. 2006. Interactions of herbicides and adjuvants with AE on postemergence grass control. Weed Science 61(4): 108–115.