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Tag Archives soil science

Tillage recruited to deal with moisture issues
Crops, Features

Tillage recruited to deal with moisture issues

Farmers still want to be zero tillers, but high residue, excess moisture and weeds are putting tillage tools back in the field

By
Necessity is the mother of invention, but weather appears to be the mother of necessity, these days. That seems to fit as producers talk about the need for tillage in this October Farmer Panel. Zero-till and direct seeding are still foremost on producers’ minds when they look at overall cropping practices, but with several or […] Read more
Can tillage fit into a no-till system?
Crops, Features

Can tillage fit into a no-till system?

Some zero-tillers are now looking to tillage to manage disease and weed issues

By
A large majority of farmers in Western Canada have adopted zero-till systems — with the exception of those in the Red River Valley who are dealing with heavy, wet clay soils where tillage is just a fact of life. Most farmers understand the many benefits of zero till, such as prevention of soil erosion, better […] Read more
Native grass prairies and sunset
Crops, Features, Forages

Forages and grasses for marginal land

Permanent cover crops can increase fertility in "problem soils" over time

By
Jeff Schoenau has a word for agricultural areas currently in annual production that fail to deliver a return on expensive inputs: “heartache land.” It’s better known as “marginal” land, and it can be defined as land with soil that has limitations including poor water-holding capacity and water availability to roots due to sandy texture or […] Read more
Building up the soil in your fields
Crops, Features

Building up the soil in your fields

Changing your crop rotation and management can change the content of our soil

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New research is showing that it is possible to make new, nutrient rich, productive soil on your farm without waiting for eons, simply by changing your crop rotation and management. The research, led by Dr. Stuart Grandy at the University of New Hampshire, is revising our conventional understanding of how soil organic matter (SOM) is […] Read more
Cover crops can help increase production by keeping soil cool, retaining moisture, and feeding the microbes and earthworms that build a healthy soil.
Crops, Features

How to plan your first cover crop

Before you choose a cover crop mix, make sure you know what you want it to do

By
Cover crops are becoming more popular. But how do you plan your first cover crop? The first part of the planning process is setting goals, says Kevin Elmy, owner of Friendly Acres Seed Farm at Saltcoats, Saskatchewan. Elmy has been growing cover crops for seven years and now grows and sells cover crop mixes. “With […] Read more
Weather, soil moisture and crops
Columns, Crops

Weather, soil moisture and crops

Your definition of drought will depend on the amount of subsoil in your fields

By
My 2016 barley crop was seeded May 8 into excellent moisture at a depth of 1.0 to 1.5 inches — a bit deeper in some soft sloughs. Up to the date of seeding there had been essentially no spring rains. A May 4 burn off with 2,4-D + Glyphosate took care of the volunteer canola […] Read more
This is a water well map for part of Tp 29 R13 W3, west of Milden, Sask. Legend: The “A”s next to well locations indicate that these wells date from before the survey, pre-1935. For the 2 wells that show a number instead of an A, the 74 and 70 indicate the year the well was dug. Next to the A or year, the top number shows the depth to water in the well (in feet); the bottom number shows the depth of the well (in feet). Where the circle is black, the well is assumed to be located next to buildings. Clear circles indicate that the well location is unknown within the quarter section.
Columns, Forages

The “other” moisture

Surface moisture is easy to measure: Moisture from the water table is another story

By
In making soil moisture maps as of freeze up the past few wet years, I have come to realize that we should have maps of areas where the surface moisture that we grow crops with has little or no connection to the water table. This piece adds a bit to that idea. In the 1980s […] Read more
The effects of soil compaction
Columns, Crops

The effects of soil compaction

In the first of a two-part series, learn how to diagnose soil compaction in your field

By
Soil compaction can be a serious form of soil degradation resulting in decreased crop production and increased risk of soil erosion. Soil compaction can reduce water infiltration into soil, crop emergence, root penetration, crop nutrient uptake and water uptake — all of which can reduce crop yields. Compaction concerns Soil compaction is caused by tillage […] Read more
Don’t misdiagnose soil compaction
Crops, Features

Don’t misdiagnose soil compaction

Erosion or true compaction? A correct diagnosis is key to proper management

By
Subsoils are naturally compact, and what looks like a soil compaction problem might actually be a case of erosion removing the top, soft layer of soil and exposing the dense subsoil. “People assume they have a soil compaction problem, but exposed subsoil is often misdiagnosed as a soil degradation issue,” says David Lobb, a professor […] Read more
Soil background
Columns, Crops

The making of a healthy soil

“Soil health” is a popular topic, but Les Henry says the fine points are mostly spin

By
We hear a lot about soil soil health these days so thought I should brush up on the literature. To give the punch line first: in my opinion it is mostly spin. Any introductory course or soils textbook starts by picking a hypothetical pound of ground and revealing the basics. Soil is half solids and […] Read more

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