Impact of chickpea/flax intercropping on nitrogen fixation in chickpea and nitrogen transfer to flax

  • Chickpeas
  • Crop Rotation
  • Soil Health
  • University of Saskatchewan

Lead Investigator(s)

Dr. Fran Walley

Lead Investigator(s) Institution

University of Saskatchewan - Dept. of Soil Sciences

Objective

To assess the impact of intercropping flax and chickpea on nitrogen (N) fixation of chickpea. To assess the impact of intercropping flax and chickpea on N transfer and N nutrition of flax.

Outcome

No significant differences in percent nitrogen (N) derived from fixation were detected between monocropped chickpea and the intercropped counterparts at any of the sites, although data suggested a trend for increased N fixation with intercropping, but only at one site. Additionally, total accumulation of fixed N typically was greatest in monocropped chickpea, which likely reflected the greater biomass associated with the monocropped versus intercropped chickpea. When total N accumulation by the intercropped system was considered, no significant differences between treatments were detected. Transfer of N from chickpea to flax was detected at only one of the six harvested sites, and levels of transfer were very low. Nonetheless, these results suggest that there is some potential for modest levels of N transfer to occur within intercropping systems.

Agronomy

SPG Contribution

$56,100.00

Project Status

Complete

Duration/Timeline of Project (Year to Year)

2014 - 2016