Soil temperature

  • Cold soils? Seed anyway

    Soil temperature

    Seeding into warmer soils speeds up emergence and makes it more uniform. However, the yield benefits of seeding early May versus late May (most years) are too important to ignore..

    It’s mid May, so put away the soil thermometer. When you get the chance to seed, then seed.

    Seeding into warmer (8-10°C) soils will improve seed survival and have more seed emerging at the same time (as shown in the graph) but this needs to be balanced against the benefits of early seeding. To improve seed survival and speed of emergence in cooler soils, seed shallow and use seed-placed phosphate. Limit all other seed-placed fertilizer.

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