2015 Field Research Highlights
The Controlled Traffic Farming Alberta project completed its 5th year of field trials in 2015. It is the second year of replicated field-scale trials. The Alberta Crop Industry Development Fund (ACIDF) is our major funder.
Click here for the 2015 CTFA field report
Growing season rainfall for 2015 was well below normal for all locations except Morrin. All sites received very little rain until the second to third week of July, just in time to salvage the crop. Stored soil moisture was critical to emergence and early spring growth. Fortunately for most locations fall frost was not an issue.
2015 Infiltration Results
The time it takes to infiltrate one inch of water into the soil has been monitored for five years. The controlled traffic farming (CTF) plots have consistently shown faster average infiltration rates, but not always statistically different than the random traffic (RT) plots in each of the last five years. Infiltration rates were significantly faster in favour of CTF at p=10% on four of the eight sites in 2015. Click here for graph
2015 Weed and Crop Emergence Results
Agriculture and Agri-Food Canada, Lacombe is monitoring crop emergence and weed populations in the CTF and RT plots. Weed populations are counted each spring, prior to or just after in-crop spraying, with a view to determining if there are any shifts in populations between the CTF and random traffic. Crop emergence counts are taken at the same time. Weed counts for 2012 through 2015 do not reveal any population shifts. Crop emergence has not been significantly different between the controlled traffic and random traffic in most locations and years. Click here for Crop Emergence graph.
2015 Yield Results
The plots for 2015 are replicated field-scale plots. Replications ranged from two to five. The data was collected from combine yield monitors and in the case of Dapp, New Norway, Lacombe and Trochu grain carts with scales were also used to record yields. Yields were collected from random traffic treatments and from the CTF swaths immediately adjacent to the random traffic. The Trochu site had significantly better yields for the CTF at p=10%. There were no significant differences in yield at the other sites. Click here for graph.