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Organic no-till soybean production: is it possible in Ontario?

Why organic no-till?
 
Organic soybean production relies on a significant amount of tillage. When done well, yields can rival conventional production. There are drawbacks, however, including a high labour demand in the spring and the potential for soil degradation over time. Cover crop-based organic no-till soybean production techniques have been developed in recent years and proven to work in parts of the US. The question is, will they work under Ontario’s climate and soils?
 
Cover crop-based organic no-till soybean production uses a roller crimper, a drum with chevron-shaped blades (Figure 1) that’s used to crimp the stems of rye (or another suitable plant) once it’s flowering and kills it. You then seed soybeans into the mulch. If it’s thick enough, it provides season-long weed suppression. The cover crop-based organic no-till system offers advantages in terms of labour savings and soil health improvements.
 
Ontario trial
 
On-farm experiences with organic no-till soybean production in Ontario over the past decade have yielded mixed results. As part of a two-year OSCIA Tier 2 trial, Heartland Soil and Crop Improvement Association is evaluating cover crop-based organic soybean production using established best practices. The goal is to identify barriers to success and develop recommendations specific for Ontario conditions.
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