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This slide cabinet holds 5,000 slides and allows me to view 120 at a time. Any slide can be located in a flash if a good filing system is in place.
Columns, Crops

Exhibit 1: Weather cycles — Willowbunch Lake

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Over the course of 30+ years at the University of Saskatchewan I collected about 5,000 35 mm colour slides. Many were taken by me while pounding pavement but I also “inherited” slides from folks who retired or moved. I also have a slide cabinet at home with hundreds of slides from junkets to Tanzania, Swaziland […] Read more
Promise of self-fertilizing attracts investment
Crops, Features

Promise of self-fertilizing attracts investment

Bayer bets big on a future where crops are designed to fertilizer themselves

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There are a lot of efforts underway to optimize and minimize fertilizer use in crop production. Precision agriculture tools are improving the accuracy of where fertilizer is placed so that as much of it as possible reaches the plants that need it. And researchers from at least two Canadian universities — Ottawa’s Carleton University and […] Read more
Farming through the drought cycles
Columns, Crops

Farming through the drought cycles

Soils and Crops: Even with modern ag technology, we’re still reliant on rain or soil moisture

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As the combines started to roll this fall, many were very surprised at how hard the truckers had to work. While not a barn burner, the 2017 crop will go in the books for many as good, and considering the lack of rainfall some will say it is great. We all like to point out […] Read more
Different types of soil have different properties. University of Alberta research is focusing on measuring soil quality.
Crops, Features

Controlling traffic to improve your soil

A new test offers another way to test soil quality improvements

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It can be called “fractal hierarchical aggregation” or just “fractal aggregation.” Whatever the moniker, the new method of soil health testing promises to offer an important way to assess soil quality and land stewardship, says Guillermo Hernandez, an assistant professor at the University of Alberta. Hernandez is the lead researcher on a suite of projects […] Read more
Farm it like you’re ‘just’ renting it?
Features

Farm it like you’re ‘just’ renting it?

Do farmers look after rented farmland differently than land they own? Should they?

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We’ve all heard the term “drive it like a rental” but could that also apply to farmland? Is a farmer more likely to use conservation practices like no-till or variable rate technology, or apply more fertilizer and/or manure to improve the fertility on land he or she owns than on rented land? In April 2013, […] Read more
Tom King (left) from the soils science department at the University of Saskatchewan talked about plant nutrient and 4R field trials at Saskatchewan Agriculture’s Crop Diagnostic School in Indian Head in July.
Crops, Features

Growing crops in saline soil

Sometimes dividing up the field is the best solution to salinity

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The Saskatchewan Ministry of Agriculture’s Crop Diagnostic School is a great opportunity for farmers and agronomists to get outside for a hands-on, up-close look at plots, plants, insects and weeds. This summer, the School was held in Indian Head over two days in July. One of the many speakers, Gary Krueger, Saskatchewan Agriculture irrigation agrologist […] Read more
Measuring soil’s benefits from CTF
Crops, Features

Measuring soil’s benefits from CTF

A new test offers a way to measure improvements from controlled traffic farming

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It can be called “fractal hierarchical aggregation” or just “fractal aggregation.” Whatever the moniker, the new method of soil health testing promises to offer producers an important metric for assessing soil quality and land stewardship, says Guillermo Hernandez, an assistant professor at the University of Alberta. This spring he published a research paper demonstrating that […] Read more
In my asparagus patch, September, 2012. Planting date was May 2002.
Columns, Crops

Getting to the root of the matter

In the third of a three-part series, Les Henry looks at roots of field and garden crops

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This is the final of a three-part series. In part 1 (April 11, 2017) I talked about the folks that provided very detailed diagrams of many plant roots to the depth needed to get the complete picture. Part 2 (April 25, 2017) was perennial pasture and hay crops and weeds and part 3 is field […] Read more
Figure 1. Roots of native sod of True Prairie in SE Nebraska. Each square in this figure is one square foot, for a total root depth of eight feet. The common names of a few of the plants are: Bc = side oats grama; K = Junegrass; B = blue grama; So = prairie goldenrod; S = needle grass. From: Plate A, after page 38 of Weaver, J.E. 1920. Root development in the grassland formation.
Columns, Crops

Back to the root of the matter

In Part 2 of a 3-part series, Les Henry talks about perennial crop roots

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This is Part 2 of a three-part series. In Part 1 we talked about the folks that provided very detailed diagrams of many plant roots to the depth needed to get the complete picture. In this part, we’ll talk about perennial plant roots, and in Part 3 will be about annual crop plants. Read more: […] Read more
On the left is a root of a sugar beet grown in fine sandy loam soil, showing root stratification in the second and fourth foot of soil where layers of clay were encountered. From Weaver, 1926, Root Development of Field Crops. The wheat and wild mustard graphic on the right shows root competition between Marquis wheat (on the left, with roots marked 1, 2, 3 and 4), and wild mustard, 22 days after emergence. (This graphic is from Pavlychenko and Harrington, 1937: Ecology Vol. 18 No.1 Pages 62-79.)
Columns, Crops

Getting to the root of the matter

For a look at the big picture, the ‘old’ research on roots is still relevant today

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Plant roots are receiving more attention of late and well they should. Roots are the foragers that deliver water and nutrients to the plant, but too often our attitude is “out of sight, out of mind.” With the current interest in many plant species, cover crops and soil health, much of it comes down to […] Read more

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