Soybean School: How Long Can Planted Seed Wait for Rain?

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With the June 30 crop insurance deadline approaching, many Ontario farmers are wondering what they should do with their soybeans.

Across the province, fields are struggling as seed lays in the ground in varying states of delayed emergence due to drought conditions. In this episode of Real Agriculture Soybean School, Pride Seeds Market Agronomist Ken Currah offers tips on how growers can evaluate planted seed to determine whether it’s still viable and whether it’s time replant or continue to hold out for a possible rain that will jumpstart the crop.

One of the common mistakes growers and agronomists make is pulling the trigger on a replant and then ending up with 450,000 plants when both the original and replanted seed emerges after a timely rain, says Currah. He explains that if a soybean seed cotyledon can maintain moisture above 10%, it can survive four to six weeks in the soil before emerging.

With shovel in hand, Currah compares several different germinated seeds to illustrate those plants that remain viable even though they’re sitting just below the surface, yet to emerge.

Click here for more Soybean School episodes.

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Soybean School (view all)Season 5 (2016) Episode 22
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