The Ontario Phosphorus and Potassium Database

corn field with blue sky in background

Did you know that a review of Ontario phosphorus (P) and potassium (K) fertilizer guidelines was undertaken? The work looked at crop responses to P and K for corn, soybeans, winter wheat and alfalfa from 368 trials conducted over the last several decades. It compared most economic rates to current Ontario fertilizer guidelines as found […]

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

strong soybean stand with rye mulch below

In this article, we will take a look at using a roller crimper for organic no-till soybean production and the results of on-farm trials conducted in Ontario from 2019 to 2021. Highlights Organic no-till soybean production was evaluated at 22 locations (13 observational sites and 9 replicated strip-trials) Organic no-till soybeans yielded 32.4 bushels/acre on […]

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White Mould in Soybeans Can be Controlled

This article was written by Horst Bohner, OMAFRA Soybean Specialist, and Paul Sullivan, Sullivan Agro Inc. White mould can be one of the most devastating soybean diseases growers face. The extent of yield loss is largely dependent on the inoculum “load” of a field and the right weather occurring during soybean flowering. If the disease […]

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Reducing Soybean Lodging

  Soybean lodging (plants that fall over) can seriously impact yield. Fortunately, it’s often only small portions of a field that lodge. In rare cases whole fields will go down, which devastates yield potential. Light penetration into the canopy during key growth stages will be impeded by lodging, reducing a plant’s ability to produce seed. […]

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The 1st Trifoliate is the Best Time to Roll Soybeans

Land rolling helps conserve moisture, levels the soil, and pushes small rocks into the ground. Some producers roll immediately after planting, while others wait until the soybeans have emerged. Rolling immediately after planting provides improved seed-to-soil contact and reduces the likelihood of plant injury. But, it also increases the chance of soil crusting, which hinders […]

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Soybean Replant Considerations

Soybeans are prone to poor plant establishment because the seedling must pull the cotyledon seed leaves through the ground to emerge. Plant stand reductions are rarely uniform, which makes the decision to replant difficult. Do not assess a poor soybean stand too quickly, since more seedlings may still emerge. In 2020 we have seen soybeans […]

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Is it Too Cold to Plant Soybeans?

Prolonged cold weather this spring has led some producers to wonder if soybean planting should be delayed. Over the next few days weather forecasters are even predicting a “polar vortex” with possible daytime highs of 3°C and nighttime temperatures of minus 3. Does this mean soybean planting should be delayed until things warm up? There […]

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Identifying and Mitigating the Risks of Ultra-early Soybean Planting

By Mike Staton, MSU Extension Soybean Educator and Horst Bohner, Soybean Specialist, Ontario Ministry of Agriculture, Food and Rural Affairs. Some soybean producers in Michigan are experimenting with ultra early planting dates (late-March to mid-April) with positive results. To date, research trials have not shown a consistent yield benefit to planting this early when compared […]

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Soybean Management

Delayed Planting The spring of 2019 was unprecedented in Ontario. Cool temperatures and constant rainfall delayed planting of much of the crop. Most soybeans were planted in June and for some growers it was July. There are often pockets of the province that can’t plant due to wet soil conditions, but we have not experienced […]

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