GFM Network News


Three situations where an in-crop nitrogen application may be worthwhile

Q & A with an expert

Q: When should I consider an “in-crop” application of nitrogen? A: Under the arid environment of the Canadian Prairies, splitting nitrogen applications in annual crops (e.g. applying 70 per cent of the nitrogen at time of seeding and top dressing the balance during the vegetative stage) rarely provides an agronomic benefit over applying all the […] Read more

Manitoba extends fertilizing deadline to Saturday

A warmer-than-usual November has allowed Manitoba’s conservation and water stewardship department to delay its winter fertilizing ban until Saturday (Nov. 14). With soil temperatures not yet at the freezing point, the province announced Monday it would extend its deadline for spreading of phosphorus and/or nitrogen, including synthetic fertilizers and/or manure, to Nov. 14 from Nov. […] Read more


Crunch time for Manitoba producers to fertilize

CNS Canada — The clock is ticking for Manitoba producers who wish to lay down nitrogen or phosphorous on their fields. Wet conditions in many parts of the province are making it tough for farmers to get their machines onto fields, according to Dan Mazier, president of Keystone Agricultural Producers. “We just drove from Winnipeg […] Read more

Applying your nitrogen in the fall

Agronomy Management: Fall application can be more convenient, but effectiveness varies, depending on conditions

Applying nitrogen fertilizer at the time of planting in spring is usually the best option for most Prairie farmers. But that means applying a lot of product, which can really slow down the seeding process. Getting the seed in the ground at the optimum time is important, and delays can reduce crop yield potential. Some […] Read more


Fertilizer prices steady as farmers gauge fall use

CNS Canada — Farmers are starting to assess how much fertilizer they’ll use going into the fall, if at all, based on crop budgets, according to an industry analyst. Fertilizer prices are being driven by crop prices and the global market, and both those factors are keeping prices steady, said David Asbridge, president at NPK […] Read more

Manitoba lifts fertilizing ban early

Manitoba farmers are cleared to apply spring fertilizer and manure on their fields, now that the ban which was supposed to last for another week and a half has been lifted. Soil temperatures across the province have risen to the point that the restriction — otherwise in effect each year between Nov. 10 and the following […] Read more


Farmers concerned that they may be over- or under-applying nitrogen can take a corn stalk nitrate test.

Higher corn yields through fertility

Fertility recommendations vary from farm to farm, but may be lower for zero-till fields

Prairie farmers are used to being flexible, always on the lookout for new recommendations for fertility applications — and when it comes to growing corn, they have to be. Corn is an expensive crop with high nutritional requirements. And every farmer’s land requires something slightly different. Morgan Cott, field agronomist for Manitoba Corn Growers Association, […] Read more

This picture from 2011 shows a spot where nitrogen application triggered iron chlorosis in soybeans (the yellowing plants).

The right amount of nitrogen for soybeans

Between hearing of U.S. farmers adding extra nitrogen, and 
warnings about choosing fields with low nitrogen for soybeans, it’s easy to get confused

Some western Canadian farmers new to soybeans are understandably a little confused about the issue of whether or not they need to add nitrogen fertilizer to achieve better yields, especially if they are sourcing production information from the U.S. Differences in soils types, conditions and crop rotations mean that U.S. information isn’t necessarily applicable to […] Read more


“Sometimes you need to go back to the drawing board when you have to sacrifice one of the Rs,” Orchard says.

Synergy and the four Rs

To get the most from your fertilizer plan, consider the relationships between variables


It’s important to evaluate all four Rs of fertility collectively when considering the nutrient requirements of your crop. Changing any one R — right time, right place, right rate and right source — can profoundly alter the management of the others, says Dan Orchard, an agronomy specialist with the Canola Council of Canada. “Adhering to […] Read more

Crop rotations and soil science

Some see soil as mere dirt. Soil scientists see a complex ecosystem 
affected by everything from crop rotations to fertilizer

Using DNA technology, researchers are finding that microbial diversity in the sea is huge, said Dr. Marcia Monreal, soil microbiology scientist with Agriculture and Agri-Food Canada. “But (their results) suggest the diversity in the soil is much larger.” Monreal explained that there is a food chain in the soil that includes bacteria plus other creatures […] Read more