Seed pelleting



Seed pelleting set off the development of all seed technologies over seventy years ago, and Germains was the first to create a pellet for sugar beets seed which has expanded into a number of vegetable crops. Because many vegetable seeds are small, light, and irregular in shape, Germains offers various seed pellets for precision planters.

Our seed pellets are developed for specific growing regions or conditions.  We offer several sizes and weights that are suitable for today’s crops. In addition, seed pelleting may be stacked with other technologies such as priming and health technologies to help maximize your crop’s potential from planting to harvest.

Seed pelleting technologies offer many benefits, including:

  • Produces bigger, rounder, and smoother seed pellets
  • Allows for precision drilling
  • Ideal carrier of some crop protection treatments such as fungicides and pesticides
  • Uniform sized pelleted seed
  • Improve ability to handle even the finest seed

Please contact us today for more information about our seed pelleting technologies and pricing.

Oxykote® is a tan, heavy, split type seed pellet offering excellent plantability and uniform placement.

Species availability:
Endive, Escarole, Lettuce, Radicchio, Tobacco

A versatile white, heavy, melting seed pellet that allows rapid oxygen uptake, also known as Propellet® heavy. Popular among leafy vegetable growers located in the Pacific Northwest and California growing regions.

Species availability:
Endive, Escarole, Lettuce, Radicchio

ppl® is a high-quality lightweight seed pellet, also known as Propellet® light, commonly used in coastal regions of California.

Species availability:
Broccoli, Cabbage, Carrot, Celery, Cucumber, Endive, Escarole, Jalapeno, Kale, Leek, Lettuce, Onion/Shallot, Parsnip, Pepper, Radicchio, Red Beet, Tomatoes

Proflo® is a heavy seed encrustment coating that increases the seed size and weight to help improve singulation when planted with a vacuum seeder. Proflo improves singulation during planting vs. planting raw seed while making the seed more visible in the soil. Unlike the traditional round pellet with a specific pellet size, encrustments maintain the seed’s natural shape while adding bulk and weight to the seed so that it flows through vacuum planters with fewer skips and doubles.

New proflo seed encrustment for onions

Germains R&D team recently reformulated the conventional proflo seed encrustment for onions. The new formula enhanced the encrustment’s integrity, reduced dust-off, and improved the accuracy of the final coated seed count per lb. to meet planter specifications.

Key benefits:

  • Improved integrity for easy planting and singulation
  • Significant reduction in dust-off
  • Elimination of buildup requirements for FarMore® applications
  • Finished desired seed count accuracy ranging from 55K to 95K +/- 5K seed per lb
  • Reduction in the number of doubles and skips

R&D summary:

This product is designed to build to seed count accuracy (±5000) by customer’s preference, and it was launched only after passing all tests conducted in our laboratory and field trials for a couple of years. Proflo passed plantability and pellet integrity tests using an air planter at variable disc speed and vacuum pressure. While performing the air planter test, data were generated for seed flowability on doubles, skips, broken seed, and dust-off. The air planter handled all seed treatments as per expectation without crumbling or damaging seed with minimal or no dust-off. Seed count targets were met successfully with each build runs to target seed counts. Dust-off was reduced by 80% over standard proflo. Chemical loading (F300 and FI 500) tests remained within the target range as per the product’s rate of application recommendations. Field trials also met or exceeded expectations on seed emergence, total germination, and applicable transplant requirement.

onion seed encrustment

Final seed count accuracy testing:

Extensive testing has been conducted to achieve accuracy for accommodating requests for final seed counts.

onion seed encrustment
Three color options:

onion seed encrustment

Species availability:
Endive, Escarole, Lettuce, Onion/Shallot, Parsnip, Radicchio

Proflo® precise is a heavy, precision encrustment designed to improve singulation and flow when used with a vacuum seeder. Proflo precise is commonly used for baby leaf lettuce when planted with a Spider Planter and reduces wear on the planter’s sponges. When using a precision planter, Proflo precise allows a grower to plant 2.5 M per acre vs 4M raw seeds per acre.

Species availability:
Lettuce, Onion/Shallot

Propell® is a lightweight field pellet that splits rapidly and neatly when placed in moist growing conditions, allowing access to the seed for oxygen and light uptake for germination. The pellet is designed for direct-drilled crops and is precisely graded to improve the seed’s singulation and plantability.

Species availability:
No species available.

Propellet® elite seed pellet technology was specifically developed for celery.  ProPellet elite enhances the seed’s performance in transplant production. Propellet elite is a stacked seed technology that combines seed pelleting and health products that deliver stronger roots and vigor to improve the crop’s overall performance from transplant to harvest.

Key benefits

  • Larger seedlings with increased foliage
  • Enhanced root development for easier transplant production
  • Improved vigor for better stand during transportation from greenhouse to the field
  • Increased yield potential

Propellet elite is an innovative solution to a grower’s problem

Propellet elite product development began with a single customer inquiry. A commercial celery grower was experiencing crop loss when transporting seedlings from the greenhouse to the field. The customer contacted Germains to see if a seed technology could be developed to improve celery seedling vigor and root mass for transplanting. Based on the grower’s circumstances, Germains’ Research and Development team customized an existing seed pellet by combining it with beneficial health products. Contact us for more information about Propellet elite for carrots and jalapeños.

ProPellet elite seed pellet improves vigour and roots in the greenhouse.
ProPellet elite Trial Data

Species availability:
Carrot, Celery, Jalapeno, Tomatillo

Prosun™  is a seed coating for sunflowers that provides added weight and a smooth, slick finish that enables sunflower seed 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 observed. Data represents 4 trials combined: NDSU REC’s Carrington & Minot 2017, 2018. Four varieties/seed fields 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 represents 3 trials combined. NDSU REC’s Carrington 2017, 2018, Minot 2018. Two varieties tested in each trial. Sizes within a variety from same seed field.

seed coating for sunflowers

Reduce Skips, Accurate Plant Density Raw vs. prosun™️ 

seed coating for sunflowers

Improve Singulation Reduce Multiples Raw vs. prosun™️ 

Sunflower yield improvement

No differences in oil content, moisture or test weight 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 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 for application as a filmcoat during the coating process. Please speak with your seed distributor about crop protection products they may have available.

Species availability:

Used in either a greenhouse or in the field, seed encrustments are a minimal buildup of pelleting materials that help increase the seed’s weight and size. Seed encrustments also help improve singulation during automated planting and may include agrochemicals upon request. Seed encrustments reduce dropping doubles when planting, which improves spacing between plants, often reducing the need to thin the crop after planting when planting to stand.

Species availability: