Effect of Tillage Systems and Herbicide Application in Weed Control of Canola (Brassica napus L.)
Subject Areas :
Journal of Crop Ecophysiology
Seyyed Ali Forouzandeh
1
(
M.Sc. Graduate student, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ramin Agriculture and Natural Resources University of Khouzestan, Mollasani, Iran.
)
Elham Elahifard
2
(
Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ramin Agriculture and Natural Resources University of Khouzestan, Mollasani, Iran.
)
Nosratoallah Heidarpour
3
(
Kohgiluyeh and Boyerahmad Agricultural and Natural Resources Research and Education Center, Yasouj, Iran.
)
Abd Al-reza Siyahpoush
4
(
Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ramin Agriculture and Natural Resources University of Khouzestan, Mollasani, Iran.
)
Received: 2016-04-18
Accepted : 2017-04-24
Published : 2017-05-22
Keywords:
dry weight,
No-tillage,
Conventional tillage,
Reduced Tillage,
Weed density.,
Abstract :
Integrated weed management in canola (Hyola 401) was studied in an experiment conducted in 2014-2015 growing season in “Kohghilooyeh and Boyer Ahmad”, Iran. The experiment was performed in strip split plots based on randomized complete block design with three replications. Tillage systems with three levels (conventional tillage, reduced tillage and no-tillage) assigned to main plots, and herbicide applications at four levels consisted of trifluralin (1200 g ai ha-1,48% EC), quinmerac+metazachlor (1040 g ai ha-1, 41.6% SC), clopyralid (180 g ai ha-1, 30% SL) + setoxydim (375 g ai ha-1, 12.5% EC), clopyralid (180 g ai ha-1) + haloxyfop-R methyl ester (81 g ai ha-1, 10.8 % EC) and weed free treatments. Results showed that weed density and dry weight reductions were 76.84% and 68.08% in reduced tillage system + quinmearc+metazachlor application, respectively. It was, also, observed that treatment influenced plant height, biological yield, harvest Index, silique number per plant, seed number per silique, 1000-seed weight and seed yield. The maximum yield (3226 kg.ha-1) was obtained by using reduced tillage + quinmearc+metazachlor application. Therefore, it would be concluded that reduced tillage + quinmearc+metazachlor was the best treatment to control weed and achieve high canola seed yield. The results, also, revealed that use of clopyralid+ Haloxyfop-R-methyl ester + no-tillage resulted in lowest yield (467 kg.ha-1) So, it was considered as inefficient treatment.
References:
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· Aalaee Bazkiyaei, P., J. Asghari, P. Moradi, and E. Amiri. 2017. Rice Yield Variations as Affected by direct seeding and herbicide application. Journal of Crop Ecophysiology. 10(4): 809-822. (In Persian).
· Behdarvandi, B., and A. Modhej. 2006. Integrated weed management (chemical and physical control) in rapeseed (Brassica napus L.) in Khouzestan condition. 1th Iranian Weed Science Congress. 25-26 Jan. Tehran, Iran. (In Persian).
· Bosnic, A.C., and C.J. Swanton. 1997. Influence of barnyardgrass (Echinochloa crus-galli) time of emergence and density on corn (Zea mays). Weed Science. 45 (2): 276- 282.
· Braz, G.B.P., R.S. Oliviera Jr., L.H.S. Zobiole, R.S. Rubin, C. Voglewede, J. Constantin, and H.K. Takano. 2017. Sumatran fleabane (Conyza sumatrensis) control in no-tillage soybean with diclosulam plus halauxifen-methyl. Weed Technology. 31(2): 184-192.
· Gajri, P.R.,V.K. Arora, and S.S. Prihar. 2002. Tillage for sustainable cropping. Food Products Press, New York. 203 pp.
· Hemat, A., and A. Asadi Khashoui. 1997. Effects of direct -drilling, non inversion and conventional tillage systems on yield of irrigated winter wheat. Iranian Journal of Agriculture Science. 28(1): 19-34. (In Persian).
· Katsvairo, T., W.J. Cox, and H. Van Es. 2002. Tillage and rotation effects on soil physical characteristics. Agronomy Jorunal. 94(2): 299- 304.
· Kruez, E. 1990. The influence of no-plough tillage for winter wheat in a three-cource rotation on yield and yield structure. Archiv für Acker- und Pflanzenbau und Bodenkunde. 34(9): 635-641.
· Lekhanath, P., U.R. Bishnoi, G.O. Kegode, and E. Cebert. 2008. Influence of timing of herbicide application on winter canola performance. World Journal of Agricultural Sciences. 4: 908 -913.
· Loghmani, A., M.A. Asoodar, H. Nooriani, and A. Abroosh. 1999. Evaluating effect of tillage systems and weed control on wheat yield in Dezful. Crop Physiology. 1(4): 99-109. (In Persian).
· Miri, H.R., and Y. Rahimi. 2009. Effects of combined and separate herbicide application on rapeseed and its weeds in Southern Iran. International Journal of Agriculture and Biology. 11(3): 257-260.
· Musavi, M.R. 2013. Herbicides: Cognition and application. Marz-e Danesh Press. 284 pp. (In Persian).
· Musavi, S.K., and P. Shimi. 2004. Evaluating efficiency reduced dose of haloxyfop R methyl and other grass herbicides in canola fields. 16th Iranin Plant Protection Congress, 28-1 Sep. Tabriz, Iran. (In Persian).
· Pourazar, R. 2010. Cultural, mechanical and chemical weeds control in canola (Brassica napus L.). Iranian Journal of Weed Science. 1(1): 11-24. (In Persian).
· Pourazar, R., and Shimi, P. 2004. Evaluating efficiency metazachlor in canola. 16th Iranin Plant Protection Congress, 28-1 Sep. Tabriz, Iran. (In Persian).
· Pouri, Z., S.J. Angadji, M. Montazeri, and M. Mashhadi Jafarloo. 2012. Efficiency of some selective herbicides in canola (Brassica napus L.) cultivation and their interaction with biofarm biological fertilizer. Journal of Crop Ecophysiology. 6(2): 145-156. (In Persian).
· Radjabian, M., J. Asghari, M.R. Ehteshami, and M. Rabiee. 2010. Effect of plant density on critical period of weed control in canola (Brassica napus L.). Iranian Journal of Weed Science. 5(1): 13-30. (In Persian).
· Rajcan, I., and C.J. Swanton. 2001. Understanding maize- weed competition: Resource competition, light quality and whole plant. Field Crops Research. 71(2): 139-150.
· Rao, S.C., and T.H. Dao. 1996. Nitrogen placement and tillage effects on dry matter and nitrogen accumulation and redistribution in winter wheat. Agronomy Journal. 88(3): 365- 371.
· Safikhani, S., A. Biabani, A. Faraji, A. Rahemi, and A. Gholizadeh. 2015. Response of some agronomic characteristics of canola (Brassica napus L.) to nitrogen fertilizer and sowing date. Journal of Crop Ecophysiology. 9(3): 429-446. (In Persian).
· Shimi, P., R. Pourazar, F. Ghezeli, and H. Sasanfar. 2014. Efficiency of two commercial forms of clopyralid at different doses in controlling canola weeds. Iranian Journal of Weed Science. 10(2): 145-153. (In Persian).
