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For results to be as close as possible to the situation next spring, the ideal time to take fall samples is when soil temperatures drop below 10°C and as close to freeze-up as possible…
The right time for fall soil testing
September 28, 2016
4Rs
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Timing and depth for fall fertilizer
September 28, 2016
Fall fertilizer is best applied as close to freeze up as possible to balance two objectives: (1) allow soil to seal over the band and (2) reduce losses due to high microbial activity in warm soils…
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Need to know: Phosphorus (P)
April 12, 2016
Canola removes more phosphate than other crops, and studies show that phosphate fertilizer rates have lagged crop removal for years. The result, says soil fertility expert Ross McKenzie, is that about 80% of Prairie fields are deficient in phosphorus…
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Need to know: Sulphur (S)
April 12, 2016
Growers understand the need for S in canola, but more frequent production of canola and higher yields have been drawing down soil levels. Soil fertility expert Ross McKenzie estimates that at least 40% of soils across Western Canada are S deficient…
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Still time to take soil samples
November 4, 2015
The ground is not frozen yet, which means growers and agronomists still have an opportunity to take fall soil samples. This is one of the best times to sample because……
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The right time for fall soil tests
October 7, 2015
Soil sampling is good practice in the fall — whether crop was better or worse than you thought. Why fall? Growers often have more time in the fall than in the spring. And with results and recommendations in hand before winter, growers can use the winter months to plan their fertilizer programs for next year, to order fertilizer, and to…
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3 fertility questions for seeding time
April 22, 2015
The key with fertility decisions is to apply all of the 4 Rs — right fertilizer source at the right rate, at the right time and in the right place.……
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Sulphur forms: Which to use and when?
March 11, 2015
Canola has a high demand for sulphur. Because of high sulphur variability across most fields, the common recommendation is to apply 10-15 lb./ac. of sulphur when soil test results show adequate levels and 20-25 lb./ac., or more, when tests show deficient levels. Read more for product options and when to use them…
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Dan Orchard on N soil tests
November 5, 2014
Nitrogen is quite mobile in the soil, and amounts can fluctuate year to year and depth to depth. Although some growers have success by using removal rates and target yields when making N decisions, a soil sample can be a great indicator and a good way to ensure intended rates aren’t too high or too low. When determining how much…