Symptoms will first appear at the base of the plant and will continue upwards as potassium moves up 
the plant to support new growth.

Manitoba soybeans not responding to K?

Soybean potassium fertility trials leave researchers scratching their heads

While it has generally been known that Manitoba’s lighter-textured soils are low in potassium, it took soybeans to really bring the issue to light. With soybeans taking up more and more acres, researchers felt it was time to conduct potassium fertility trials. While preliminary results are in, results are mixed. More data will be needed […] Read more

Consider options for protecting nitrogen

Consider options for protecting nitrogen

N-stabilizing products are not new, but there are still questions about how they work

If you are concerned about the all-important nitrogen losses due to environmental factors, there are several solutions in the form of nitrogen stabilizing or Enhanced Efficiency Fertilizer (EEF) products to choose from. All can be quite effective according to private, government and university researchers, but along comes the big depends. It depends on moisture conditions, […] Read more



As growers know, canola can be a very durable crop able to bounce back from heavy rain, insect pests and even to some extent hail events. It does have its limits, but despite adversity can recover amazingly well. With good agronomic practices and variable weather conditions the question is still to be answered — did any fields in the 2017 Canola 100 challenge produce that magic yield?

Extra canola inputs appear to pay off

That 100-bushel yield still a bit elusive, but growers are pushing their fields to the limits

David Harrish figures the extra agronomic attention he paid to a Canola 100 contest plot on his north-central Alberta farm in 2017 would probably pay off for the rest of his canola acres. Harrish, who dished out some extra TLC to about 70 acres of Pioneer Hi-Bred canola this past season, says it produced about […] Read more


(Dave Bedard photo)

PotashCorp Q3 profit disappoints ahead of merger

Reuters — Canada’s PotashCorp, set to merge with rival Agrium to withstand a fertilizer slump, reported a smaller-than-expected quarterly profit Thursday and narrowed its full-year forecast, pressuring its stock. Prices of crop nutrient potash have leveled off this year after hitting eight-year lows late last year due to low crop prices and excessive production capacity. […] Read more

WinField United Canada will operate out of Saskatoon, serving about 60 independent ag input retailers. (LandOLakesInc.com)

Mergers spawn expanded supply network for input dealers

A wholesale buying network set up by and for independent Prairie crop input retailers, against a rising tide of industry consolidation, is now growing through consolidation. The Prairie retailers, who in 2010 set up Grow Community of Independents to collectively build up their retail and agronomic offerings, are now independent members of a new entity, […] Read more



Fertilizing for optimum economic yield requires less fertilizer than fertilizing for maximum yield.

Maximum versus optimum economic yield

Agronomy Management: Often, aiming for maximum yield doesn’t give you the maximum bottom line profit

Is your farm most profitable when you achieve maximum yield or optimum economic yield? There can be substantial differences in the amount of inputs needed for maximum crop yield compared to the economic optimum yield. Applying a higher level of inputs may give you maximum yield but often won’t provide the greatest profit per acre. […] Read more


When it comes to phosphorus and potassium, farmers and researchers speak two different languages.

Make sure you mind your fertilizer Ps and Ks

The fertilizer story — why a pound of phosphorus may not really be a pound of phosphorus

In a recent article I mentioned a classic old Alberta document that talks about managing Gray Wooded soils — low in fertility and organic matter. I pointed out that when the old boys had data about rates of application of phosphorus and potassium, they meant just that, P and K, not P2O5 and K2O — […] Read more

While this research work is specific to an Agrotain nitrogen stabilizer, Rigas Karamanos says it shows how newer fertilizer technology may not completely prevent but can reduce nitrogen losses under adverse (winter) field conditions.

Fertilizer expert discourages winter application

While winter application can even out workload, losses are high and pollution is a risk

Considering how the 2016 growing/harvest season went, there may be a real crunch this spring to first find and then get fertilizer applied at seeding, but if you’re thinking it might be a good idea to get a jump on workload and apply fertilizer this winter on snow or frozen ground — DON’T. That’s the advice […] Read more