The nitrogen (N) fertility algorithm proposed at the recent Eastern Ontario Crop Conference by Dr. Dave Hooker, University of Guelph- Ridgetown Campus, was “80% of the recommended N applied pre-plant, then 1 lb/ac of additional N for each millimetre (mm) of rain from the V7 to VT corn growth stage.” Drs. B. Deen, D. […]
Winter wheat can often be found to survive short freeze thaw events throughout the winter. However, there are concerns about crop damage and survivability, particularly in those fields that were planted late last fall and those fields that were covered in ice for prolonged periods. When making assessments for winter survival, fields are typically walked […]
This past fall brought challenges for many growers. Prolonged wet weather delayed soybean harvest and pushed winter wheat seeding into late October and early November for some. Before the snow fell, many fields had not yet emerged. While the seed did germinate and vernalize, the late planting meant no tiller development. As a result, nitrogen […]
Job Term: Temporary for 16 weeks, beginning spring 2019 Salary: $14.85 / hour, based on a 36.25 hour work week Job Ad Closing Date: Friday, March 29, 2019 Available Positions/Locations: Position Focus Location Contact Person Corn Agronomy and Nutrient Management Guelph Ben Rosser and Christine Brown Are you serious about making […]
Job Term: Temporary for 16 weeks, beginning spring 2019 Salary: $14.85 / hour, based on a 36.25 hour work week Job Ad Closing Date: Friday, March 8, 2019 Available Positions/Locations: Position Focus Location Contact Person Field Crop Pathology Ridgetown Albert Tenuta Soil Management Ridgetown Adam Hayes Field Crop Entomology Ridgetown Tracey […]
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This article was written by Chris Gillard, University of Guelph- Ridgetown Campus. Sulphur is an important nutrient in field crops. It is part of the chlorophyll in leaves, two essential amino acids, and rhizobia bacteria need it for nitrogen fixation. Sulphur is mostly stored in soil organic matter (OM), and it is mineralized each summer […]
Overview Soybeans have become the largest row crop by acreage in the province. Over 1.0 million ha (2.47 million acres) of soybeans are grown annually in Ontario. The year 2014was the frst time that acreage reached 1.21 million ha(3.0 million acres). The development of early maturing varieties, adaptability to no-till production, a wide selection of […]
Plot Comments The vehicle was challenging to get aligned with the sensor due to the wagon axles not being perfectly aligned. The tires on the wagon and the tractor had similar weights. The stress for the wagon tires would be expected to be much higher than the tractor in this instance. Notice the consistent level of pressure at […]
Plot Comments The tracks on this combine do a good job to limit pressure at 6 inches. The excessive weight of this combine means that soil stress deeper in the profile will be high regardless of the amount of floatation from the tracks. The rear tire in this instance looks like it is not applying much load […]
Plot Comments The reduced tire pressure in the Field inflated tires (11 psi) on this machine reduces soil stress at the 6 inch depth (E46_B_3), the (E46_A_3) is the same tires inflated to 30psi for road travel by the onboard CTIS system. The data supports the advantages of employing CTIS to optimize tire pressures for […]
Plot Comments This shows the response of the air cart (last two peaks on plot). The response is similar on both sides of the machine. The lower response on the left side was due to misalignment with the sensor. […]
Plot Comments The machine is a self-propelled sprayer. The response shows that the rear axle is much heavier than the front axle suggesting that load sharing could be improved. […]
Plot Comments This combine with the large singles showed a relatively low soil pressure at 6 inches despite having a tire pressure that is well above 20 psi. The large footprint of this tire helps the tire float. There is still a high pressure being developed at 12 and 20 inches due to the weight. […]
Plot Comments This Unit is another good example of the advantages or Central Tire Inflation. On both the left and right sides the plots show a reduction in soil pressure when tire pressure was lowered. This particular tire on the right hand side is a very round tread face and generates a high soil stress […]