Prosun is a seed coating for sunflowers that provides added weight and a smooth, slick finish that enables sunflower seeds to flow smoothly through planters. Designed for precision air planters, Prosun seed coating helps growers achieve accurate field populations. Prosun pellets may be applied to raw or treated seeds.  Seed distributors may provide crop protection chemicals for application as a filmcoat during the coating process.

Key benefits:

  • Adds weight to seed for improved placement in the field
  • Maximizes flowability through planters
  • Uniform coating and seed sizing
  • Precision application of agrochemicals

*Not recommended for air seeders or finger planters

sunflower seed pellet

Germination and emergence trial result

No significant differences in germination or emergence were observed. Data represents four trials combined: NDSU REC’s Carrington & Minot 2017, 2018. Four varieties/seed fields were tested in each trial. Sizes within a seed lot originated from the same seed field. Seeds were counted equally between treatments and planted with a cone planter.

seed coating for sunflowers

Precision Planting | Raw vs. prosun®

Skips and multiples trial results

Number per 100 feet of row. Data represent three trials combined. NDSU REC’s Carrington 2017, 2018, Minot 2018. Two varieties were tested in each trial. Sizes within a variety from the same seed field.

seed coating for sunflowers

Improve Singulation Reduce Multiples Raw vs. prosun® 

Sunflower yield improvement

No differences in oil content, moisture, or test weight were observed. Data represent two varieties tested at each of the three trials. 2017-2018 NDSU Research Extension Center (REC), Carrington, ND, 2018 NDSU REC, Minot ND. All sizes from the same seed field. Revenue was calculated using an average NuSun selling price of $16.67, Enderlin, ND (Source: NSA Daily Market News).

seed coating for sunflowers

Accurate Spacing to Improve Yield Raw vs. prosun®

Added crop protection | Pretreated seed application

Prosun is a seed coating for sunflowers that may be applied to raw or treated seeds. Seed distributors may provide crop protection chemicals as a filmcoat during the coating process. Please speak with your seed distributor about crop protection products they may have available.

Species availability:
Sunflower, Sunflower