OASIS® Grower Solutions Foam Medium
Fast, clean, consistent growing for hydroponics
An ultra low density and higher drainage foam, the OGS Horticubes® XL growing medium is specially engineered for fast and superior quality hydroponic seedling production of vegetables and herbs. The OGS Horticubes® XL lower density helps roots penetrate faster. In addition, the finer cell structure promotes profuse secondary root growth.
Steps for Propagation
1. Remove from carton
Gently pull the paper sleeve surrounding the five sheets of OGS Horticubes® XL or carefully pull the cardboard liner that surrounds all 20 sheets.
2. Place OGS Horticubes® XL into industry standard 1020 carry trays
If your primary watering method uses overhead irrigation, use a solid-bottom tray with drain holes. However, if your primary method uses sub-irrigation, use a web-bottom tray.
Note: DO NOT use a solid tray without drain holes because excess water needs to be drained freely.
3. Place seed(s) in dibble hole
Seeds can be placed manually or via mechanical equipment in the single- or multi-seed holes when the OGS Horticubes® XL is either dry or wet.
4. Saturate Growing Medium
For optimal results, OGS Horticubes® XL in complete nutrient solution should be completely saturated, without any dry areas. Saturation is best accomplished through a combination of float saturating in OGS Hydroponic Fertilizer 16-4-17 or similar complete nutrient solution and overhead watering.
- If the seeds are sown while OGS Horticubes® XL is dry, lightly water the top of the sheets to set the seed into the dibble holes.
- Set the trays of OGS Horticubes® XL into a tub of complete nutrient solution and let the foam completely saturate until the top of the growing medium or sheet is slightly below the water surface.
Note: DO NOT force the growing medium under water.
- Following sub-irrigation, overhead irrigate the OGS Horticubes® XL using a coarse water breaker for approximately 1 minute, with 1.3 to 1.5 gallons (5 to 6 liters) of water.
In the case of lettuce or most herbs, place the sheets in a dark room at temperatures of between 66 to 68° F
(18.8 to 20° C). The tray needs to be moved from the dark room to the greenhouse at 48 hours after initiation of the germination process. Leaving the trays beyond 48 hours can lead to stretching of the seedlings. During seedling production, pull the shade curtains in the afternoon hours during the summer months. Provide supplemental lighting during the winter months.
6. Irrigation During Seedling Production
The following is the general schedule for watering and fertilizing. Change as it fits to your operation (depending upon the season and growing conditions).
Day 1: Seedling / initial watering
Day 2: No watering required
Day 3: Mist once or twice with nutrient solution (100 – 125 ppm)
Day 4: Mist once or twice with nutrient solution (100 – 125 ppm)
Day 5: Mist or water with a hose and a breaker required (every day or every alternate day) until they are transplanted
The seedlings are ready to transplant when they have at least two true leaves. Typically, the seedlings are ready for transplant in 12 days during summer and 16 days during winter.
OGS Horticubes® XL is easier to handle if the foam is not completely saturated at the time of transplant. Stop the irrigation of your seedlings the day prior to transplant.
Individual OGS Horticubes® XL cubes are designed with a deep razor cut on the top and a shallow razor cut on the bottom to allow for clean separation from the full sheets. Separation occurs by using a top-down motion.
Unused OGS Horticubes® XL should be left in a closed carton. The carton should be stored in a dry location away from direct sunlight.
If you have any questions or need further clarification, please contact your OASIS® Grower Solutions Representative.
Pushouts: Pushouts are seedlings pushing out of the foam because the roots are not penetrating into the foam, yet continue to grow.
Reasons: Pushouts occur when foam is not thoroughly saturated or, in certain varieties the root system is weak and doesn’t anchor properly to the medium.
How to avoid: Following proper initial watering instructions of float saturation followed by overhead watering with complete nutrient solution. If you are still having pushouts after following the proper watering protocol, most likely you are dealing with a sensitive cultivar. In that case, covering the seed with a small amount of vermiculite can avoid pushouts and significantly improve the uniformity of the seedling growth.
* Water conveyor system: Please check with your territory sales manager if you are interested in a water conveyor system.
** Automated Seeding equipment: Please check with your territory sales manager if you are interested in an automated seeding equipment (or) Contact Berry Seeder Company. Address: Church Road, Elizabeth City, NC 27909.
Phone: (252) 330-2227.