Ben Rosser, Corn Specialist, OMAFRA While high pH knolls tend to be more common in Ontario, often caused by soil erosion leaving higher pH calcareous subsoils, this is not the case for all regions. How do low pH knolls develop? Low pH knolls (Figure 1) can develop on undulating landscapes where surface soils formed from deposits of sand, such as…
Jake Munroe, Soil Management Specialist – Field Crops, OMAFRA We’ve all seen them. Hilltops. Whitecaps. High spots where the crop struggles year after year. Eroded knolls are common to Ontario agriculture and cost farmers in lost productivity each season. However, not all eroded knolls are alike. In this two-part series, we will explore knolls: how they’ve formed and how they…
Christine Brown, Sustainability Specialist – Field Crops, OMAFRA “A radical new way of thinking about soil has partially solved the mystery of why adding manure improves resilience, climate control, and crop yields.” – Dr. Andy Neal, Rothamsted Research. Have you ever wondered why forests can establish and thrive without being fertilized? Or, why grasslands, pastures, or roadside vegetation – including…
Caution! Members of the sorghum family – sorghum, sudangrass, and hybrid sorghum-sudangrass – contain dhurrin, a glucoside that breaks down to release hydrocyanic acid, also known as prussic acid (hydrogen cyanide, HCN). A sudden disruption of growth such as frost, drought or cutting, causes prussic acid to be released inside the plant at a more rapid rate. High prussic acid…
Christine O’Reilly, Forage and Grazing Specialist, OMAFRA Grass doesn’t just happen and not all species grow the same way. Understanding how different grass species grow enables producers to make good management decisions that maximize forage production in their hay fields and pastures. Jointing and non-jointing grasses respond differently to cutting, which directly affects productivity and persistence. In an established stand,…
Environment Canada has issued frost advisories for most corn growing areas of the province for the nights of September 18 to 20 which are expected to be near or slightly below freezing (Figure 1). This is earlier than we typically observe first frosts, earlier than our long-term season end dates (Table 1) and much lower than our normal low temperatures…
Take the Test – Beat SCN Soybean harvest has begun, and many growers have asked if they could sample for soybean cyst nematode this fall. For many growers, managing soybean cyst nematode (SCN) means planting SCN resistance varieties BUT effective SCN management does not end when you have selected your soybean varieties! It is imperative to not only know your…
A pre-harvest herbicide treatment can make harvest more efficient when there are an unacceptable number of weeds in a soybean crop. Both conventional and glyphosate tolerant fields that are weedy can benefit from a pre-harvest herbicide. Drier plant matter will pass more easily through the combine, lowering seed losses and reducing seed staining…
AgriSuite is an interactive online collection of management tools and calculators, developed by OMAFRA that you can access from your desktop or mobile device. AgriSuite assists you with key crop fertilization management decisions and how they relate to optimizing crop production and protecting the environment. AgriSuite: The Field Management Calculator helps with nutrient balancing to optimize crop production Consider the…
OMAFRA Field Crop Team September 10, 2020 357 Comments Off on OMAFRA Field Crop Report – September 10, 2020Managing Eroded Knolls We’ve all seen them. Hilltops. Whitecaps. High spots where the crop struggles year after year. Eroded knolls are common to Ontario agriculture and cost farmers in lost productivity each season. This article is to explore knolls: how they’ve formed, how they differ, and how they can be managed or even re-mediated. How do knolls develop? The major…
With the first usher of cool fall weather this past week, there were frost warnings for parts of Northern Ontario. With the introduction of increasingly shorter maturity corn hybrids, there has been more corn grown in shorter season areas than what has been typical in the past, and also growers who may have recently started growing corn the first time….
Joanna Follings September 8, 2020 501 Comments Off on Winter Barley is Making a Comeback in Ontario!While not a “new” crop to Ontario, winter barley is slowly making a come back! Known for its early maturity compared to winter wheat, this crop provides an opportunity to double crop soybeans for those in longer season areas, provides coverage of the soil during winter months, is a great feed source for livestock rations and straw, helps spread the…
OMAFRA Field Crop Team September 3, 2020 753 Comments Off on OMAFRA Field Crop Report – September 3, 2020Is It Bad to Plant Corn After Cereal Rye? There has been interest in rye for cover crops or maximizing yields in silage systems (Figure 1) where rye can be harvested for silage by mid- to late May which still allows time for planting a corn silage crop. Benefits of rye include good winter hardiness, early maturity and high yield…
Phosphorus is an essential element for plant and animal growth and is necessary to maintain profitable crop and livestock production. Balancing your crop’s fertility needs is complex. Let AgriSuite help you make decisions. The Phosphorus Loss Assessment tool for Ontario (PLATO) is new to AgriSuite. The PLATO calculator helps determine the risk of field scale phosphorus loss as it relates…
Balancing your crop’s fertility needs is complex. Let AgriSuite help you make decisions. Applying nutrients to economically meet crop needs can be challenging, especially when manure or other organic amendments make up a portion of those nutrients. Since nutrients from organic sources don’t come in pre-determined blends, this calculator takes sample analysis information and combines rate, timing…
