Abstract Detail

Agronomy

Xie, Jing [1], Schoenau, Jeff [2], Warkentin, Tom [3].

Yield, nutrient uptake, and N fixation in soybean in comparison to pea and lentil in Saskatchewan.

Soybean (Glycine max (L.) Merr.) production is expanding in Western Canada due to the development of short-season varieties suitable for Western Canada. As a legume, soybean can fix a significant portion of nitrogen for its own use, which is also beneficial to the soil nutrient store as well as succeeding crops in rotation. Although these benefits have been well documented for other pulse crops, such as pea (Pisum sativum L.) and lentil (Lens culinaris), information is lacking on the nutrient uptake and removal, content and nitrogen (N) fixation by modern short-season soybean varieties grown under Saskatchewan conditions. Therefore, the objective of this study is to determine soybean yield, nutrient uptake and N fixation in comparison to pea and lentil grown under Saskatchewan conditions. In 2014, three varieties of pea, lentil and soybean were grown at four sites in the Black and Dark Brown soil zones of Saskatchewan in a randomized complete block experimental design. N-15 labelled fertilizer was applied to one variety of each crop at a rate of 20 kg N ha^-1 at two of the four sites to determine the N fixing abilities of the three crops. Yield and nutrient content of grain and straw were measured. The three tested modern short-season soybean varieties yielded comparably or better than pea and lentil at the three of the four research sites, with only peas having superior yield at one site in the Black soil zone.

1 - University of Saskatchewan, Soil Science, Soil Science, 51 Campus Drive UofS, Saskatoon, Saskatchewan, S7N5A8, Canada
2 - University of Saskatchewan, Soil Science, 51 campus drive, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
3 - University of Saskatchewan, Plant Science, 51 campus drive, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada

Keywords:
Soybean
N fixation
Saskatchewan
field peas
Lentil
Nutrient removal.

Presentation Type: Oral Paper:Papers for Topics
Session: 62
Location: Salon 8/The Shaw Conference Centre
Date: Wednesday, July 29th, 2015
Time: 9:15 AM
Number: 62005
Abstract ID:305
Candidate for Awards:CSA Graduate Student Competition for Best Paper Presentation