347-4
Rotational Effects of Legumes and Non-Legumes on Hybrid Canola, and Malting Barley.
See more from this Division:
U.S. Canola Association Research Conference
See more from this Session:
Canola Agronomy - Crop Production, Spring Canola
Wednesday, November 5, 2014: 9:00 AM
Renaissance Long Beach, Renaissance Ballroom II
John T. O'Donovan1, Cynthia A Grant2, Robert E. Blackshaw3, Kenneth Neil Harker4, Eric Johnson5, Yantai Gan6, William May7, Guy P. Lafond8, Thomas Kelly Turkington9, Newton Z. Lupwayi3, Mohammad Khakbazan10 and Elwin Smith3, (1)6000 C&E Trail, Agriculture & Agri-Food Canada, Lacombe, AB, CANADA
(2)Brandon Research Centre, Agriculture & Agri-Food Canada, Brandon, MB, Canada
(3)Agriculture & Agri-Food Canada, Lethbridge, AB, Canada
(4)Agriculture and Agri-Food Canada, Lacombe, AB, Canada
(5)Agriculture & Agri-Food Canada, Scott, SK, Canada
(6)Agriculture & Agri-Food Canada, Swift Current, SK, Canada
(7)Agriculture & Agri-Food Canada, Indian Head, SK, CANADA
(8)Agriculture & Agri-Food Canada, Indian Head, SK, Canada
(9)Agriculture & Agri-Food Canada, Lacombe, AB, Canada
(10)Agriculture & Agri-Food Canada, Brandon, MB, Canada
High costs
of fertilizer in western Canada have generated interest in alternative N
sources. Legumes produce N through fixation, and may increase soil residual and
mineralizable N, thus reducing the need for
fertilizer N in subsequent crops. Hybrid canola (Brassica napus L.) has a high N requirement for optimum yield, but
knowledge of the rotational effects of legumes on canola is limited. The
objective was to determine the effects of legume and non-legume preceding crops
on yield and quality of canola grown the following year and malting barley (Hordeum vulgare L.) grown after canola. Field pea (Pisum sativum L.), lentil (Lens
culinaris Medik.), faba bean (Vicia faba L.), canola and wheat (Triticum aestivum L.) harvested for grain,
and faba bean grown as a green manure were
direct-seeded at seven locations in 2009. Canola was seeded in 2010 and barley
in 2011, with fertilizer N applied at 0, 30, 60, 90 and 120 kg ha-1.
On average, all legumes, except faba bean for seed,
produced higher canola and barley yields than when wheat was the preceding crop.
Faba bean green manure produced the highest yields,
while canola on canola produced the lowest canola yield. The legumes had little negative
effect on percent canola oil or barley protein. Yields of both crops increased
with increasing N rate, but percent canola oil decreased, and barley protein
increased. The results indicate that growing legumes prior to
hybrid canola can improve canola and subsequent barley yield without negatively
affecting canola oil or malting barley protein.
See more from this Division:
U.S. Canola Association Research Conference
See more from this Session:
Canola Agronomy - Crop Production, Spring Canola