Adding wood ash to soil both practical and cost-effective

Adding wood ash to soil both practical and cost-effective

Practical Research: Too often headed for the landfill, ash can reduce soils’ acidity and enhance cropland fertility

Here’s a perfectly good organic source of lime, with plant macro- and micronutrients, being taken from the woodlands and virtually thrown away. Wood ash is an excellent source of magnesium, calcium, potassium, phosphate and micronutrients, which can very effectively raise up acid soil pH levels.




A soil scientist collects a sample from a test plot. The zero- to six-inch depth should be sampled separately from deeper samples to accurately determine P fertilizer requirements.

Understanding soil phosphorus, Part 2: Soil testing for plant-available P

Agronomy Management: The proper test for your soil and region can help answer questions your plants’ roots will ask this season

In my previous Grainews article, I discussed soil phosphorus (P) cycling in soil, effects of crop rotations and fertilizing on soil P, and how crops take up soil P. In this article I’ll discuss soil tests used to estimate plant-available P. Next issue, we’ll discuss how to develop wise phosphate fertilizer recommendations for your farm. […] Read more



Fertilizer in storage at a phosphate plant in North Carolina.

Understanding soil phosphorus, part 1

Agronomy Management: Rotations and fertilizer management have dramatic effects on pools of organic and inorganic P

Farmers and agronomists are very aware that phosphorus (P) is an essential element needed for optimum crop production in Western Canada. Most soils used for annual crops in Western Canada are very low, low or medium in plant-available soil P and are responsive to added P fertilizer. As a result, phosphate fertilizer use is second […] Read more



Earthworm channels in soil tend to be enriched in organic matter, microbes and nutrients, which are of significant help in nutrient cycling.

One does not simply measure soil health

Agronomy Management: Just analyzing soil samples won’t give you the big picture

Over the past 40 years, Prairie farmers have made extraordinary strides in improving soil quality. Two major reasons were the shift from using summerfallow to continuous cropping, and the shift from conventional cultivation to no-till or minimum-till farming. Farmer adoption of these improved practices was gradual. Most famers were cautious and wanted to be sure […] Read more