Fitting Seasol products into Onion production

  • Seasol products can be used every 2-4 weeks during the growing season as a general plant tonic to enhance plant health, flowering and fruit production.
  • Seasol products can be applied as needed to provide increased resistance against frost and heat damage.
  • Seasol products are a valuable supplement to apply before, or with, any foliar applied nutrients to enhance their uptake and utilisation.

Production benefits in detail:

The use of Seasol products results in significant benefits for both the plant and the crop. Application at critical development stages results in:

  • Improved plant establishment. Seasol products stimulate root growth needed for the rapid establishment of new plantings.
  • Drought tolerance. Seasol products significantly increase drought tolerance. It does this by helping plants protect against water loss.
  • Frost tolerance. The same mechanism that protects against drought stress also provides significant frost protection by reducing the temperature at which plant cells freeze.
  • Improved production. The natural substances and trace elements in Seasol products improve the evenness of crop development and general plant performance.
  • Disease resistance. It has been consistently reported that Seasol product treated plants demonstrate reduced incidence and severity of disease.
  • Increased microbial activity. Seasol products are a food source for beneficial soil microbes increasing their number and diversity.

NB. The very waxy leaves of onions mean that the use of an appropriate wetter is essential for all foliar applications.

Onion application rates and timing

Between sowing and Hook stageSeasol Plus Calcium @ 10 L/HaSoil application via boom
spray or irrigation
Three leaf stageSeasol Plus Calcium @ 5 L/Ha plus PowerFeed @ 5 L/HaEither foliar spray or via
Then every 2 to 3 weeksSeasol Plus Calcium @ 10 L/HaEither foliar spray or via