Synopsis: Very little nitrogen has been applied to wheat, and many are now abandoning plans for split application. In most areas the wheat looks good, including late plantings. Agricorp has received very few damage claims, and are busy inspecting uninsured late planted wheat. May 1 is deadli... Continue reading
The fertilizer value of liquid hog manure is significant and can provide all the required P205 and K20 and most of the nitrogen required by a corn crop. The table below shows the average available nutrients on a per thousand imperial gallons per acre basis. The availability is based on spring ... Continue reading
Synopsis: Sugar beet and potato plantings began last week, with carrots and onions ready to plant. Ground conditions have been tremendous, but will only deteriorate. Wheat looks excellent. Significant nitrogen was applied (up to 50% of acres) in some areas, with loss concerns after heavy rains. Hay ... Continue reading
Glyphosate resistance: hot button issue over the winter has been glyphosate resistant weeds, particularly Canada fleabane.
Awareness is good at retail, but not at farm gate, where it varies from excellent to “what does fleabane look like?”.
From Essex to Niagara, assume that... Continue reading
According to Environment Canada, atmospheric sulphur dioxide emissions were reduced by over 50% from 1990 to 2010. Although this is a positive outcome for emissions reductions it does signal an inevitable need to ensure that field crops have an adequate supply of this essential nutrient. A study was... Continue reading
Does ESN pay in spring wheat? Results from two on-farm sites in eastern Ontario showed no advantage in grain yield or protein content with the use of ESN in 2011 (see Table 1). There was also no significant difference in residue soil nitrogen levels. As expected there was also no impact in the perce... Continue reading
Dr. John Lauzon, University of Guelph (adapted from a presentation given at the workshop – Making Sen$e with Cover Crops Feb. 28, 2013)
Cover crops may be grown for many reasons including; reducing erosion, adding soil organic matter, soil structural improvement, nematode suppression, weed su... Continue reading
When you don't have the luxury of starting with multiple years of corn yield data how does one get started with a variable rate nitrogen strategy? Initial assessment of the field needs to question how variable the field actually is, and more to the point - what is driving the variability across that... Continue reading
Manure Injection – New technology = More Options
The goal: To increase the opportunities for injecting manure into a variety of growing crops with nutrient placement as similar to commercial fertilizer placement as possible.
Traditional manure injection combined manure applicat... Continue reading
A beautiful stand of red clover can provide as much as 75 kg of nitrogen per hectare (when at 40 cm tall) for next years corn crop. However, if the clover crop is not "killed off" in the fall, then preparing a suitable seedbed to plant next years crop in is often significantly delayed resulting ... Continue reading
Ontario research shows an average of 7.5 bushels more wheat. Add in improved winter survival and a more uniform stand and you have an agronomic no-brainer.
Stooped over a seed trench late at night, squinting through the beam of a flashlight at dark grey soil, Alan McCallum still doesn’t doubt how... Continue reading
If you are planning to retire your red clover cover crop by the end of September you may be shorting the corn crop of some residual nitrogen. In the presentation below Peter Johnson summarizes some new research out of the University of Guelph by Dr. Steve Bowley. Control options for red clover are a... Continue reading
Diagnosing nutrient deficiencies in field crops can sometimes be challenging. That is why I put together the following nutrient deficiency key. Let me know what you think.
Click on the above image to download the nutrient deficiency key.... Continue reading
Forage yields are disappointing this year in many parts of the province. Demand for hay is very strong and hay prices are at record highs. Good fertility is essential to both yields and persistence of forage crops. Phosphorus (P) and potassium (K) fertility management is often overlooked, but is f... Continue reading
Coordinated by: Ian McDonald and Greg Stewart, OMAFRA
Annually the OMAFRA field crops team surveys a range of corn fields to determine what impact the weather has on the level of residual soil nitrate. In 2012 weather conditions have been almost polar opposite to last year when Ap... Continue reading