jberry
Well-Known Member
if you want to grow in slabs then cogr seems to be the way to go...
i dont have a lot of time to do research on a product i'm not using but here is some basic standard info on Canna COGR....
About COGr
The COGR range is a proven system that is rapidly becoming the method of choice for growing in coco slabs in Holland. At the heart of this system are compressed un-buffered slabs of coco that require you, the grower, to soak with the special COGr buffering agent and then feed with a dedicated COGR Vega feed during the vegetative stage switching to COGR Flores during the flowering period. These nutrients contain added humic and fulvic acids for improved nutrient uptake as well as silicon for increased resistance to pests and disease.
For growers wanting to use this system in pots you simply buffer the slabs in the normal way and then empty the contents out into pots. Each slab makes between 21 - 25 litres of coco when decompressed. A 1 Litre pack of COGR Buffering Agent dilutes to 500 Litres, one application per crop. A 2 Litre pack of Canna COGR nutrients (1 Litre A, 1 Litre B) makes up 250 Litres of full strength nutrient. Universal formulation for hard and soft water.
COGr Buffering Agent
Liquid that is used to soak and buffer the COGr boards. CANNA developed this agent especially for the preparation of the growing medium.
COGr Buffer Agent for soaking the COGr substrate.
COGr nutrition also contains pH-stabilisers, silicon, humic and fulvic acids. COGr in combination with COGr growing medium is the nutrient for the experienced and demanding grower.
Special buffering concentrate for soaking the COGr growing substrate with water. Contains ingredients that act as buffers, pH stabilizers and trace elements.
Instructions for use
● Dosage: 20 ml / 10 Liter - 8 ml / US gallon (1:500)
● Shake the buffer agent well before use
● Administer 12.5 liter (3.3 Gallons) of diluted COGr Buffer Agent solution per COGr board and allow to swell for at least 24 hours
● After swelling the surplus of buffer solution in the COGr boards must be drained out
● Dont forget to make drain slits
● Recommended EC for COGr Buffer Agent is 1.4 - 1.6 mS/cm (assuming source water at 0.0 EC)
● Recommended pH: 5.2 - 6.2
COGr Slabs
After years of research, CANNA introduces a new and revolutionary coconut product: CANNA COGR. This product consists of a sophisticated mix of coconut grit, coconut fiber, and coconut granulates. Thanks to the coarse coconut structure, COGR has the unique property of being able to absorb large amounts of nutrients, moisture and air simultaneously, which are made immediately available to the plant. This makes the medium superior to all other growing media, promoting faster root development and higher yields. Follow the instructions given below carefully; convince yourself of the superior properties of this top quality, professional product.
COGr Slabs Directions of Use
COGR boards are pressed and delivered dry, which facilitates transportation and storage, see (1).
In order to prepare them for use, the COGR boards must first be soaked and buffered in the specially prepared COGR BUFFER AGENT. The boards will increase in volume from 3 litres to 17 litres of top quality substrate, see (2).
Dilute the BUFFERING AGENT with water in the ratio 1:500 andadjust the pH to 5.5-5.8.
Add ± 12.5 litres of diluted buffering liquid per COGR board,using a watering can or hose, see (3).
Drainage slits are made either before or after the BUFFERINGAGENT has been added,depending on which system you use, see (4).
Leave the COGR in the BUFFERING AGENT for 24 hours toallow for total conditioning. Allow the excess moisture to drain from the slab and then make holes for the plant, see (5).
The COGR is now ready to be planted, see (1).
As soon as the cuttings are in the slab, werecommend that you use RHIZOTONIC. This stimulates root growth and facilitates rooting within the slab. More vigorous plans are formed, yielding a more productive plant. RHIZOTONIC can be added by spraying the leaves, using a watering-can or a drip irrigation system, see (2).
Start with COGR VEGA with an EC of1.5 mS/cm2, pH 5.5-5.8. See (3).
Once the plants have developed a good root structure, the EC should beraised to 1:250. Recommended EC:1.8-2.4 mS/cm2, depending on the quality of the water and its EC.
Use COGR VEGA up to and including the first 2-3 weeks ofthe flowering period (12 hours light/darkness). Once growth has peaked and flower formation begins, it is time to start using COGR FLORES (dilution 1:250;EC 1.8-2.7 mS/cm2; pH 5.5-5.
. See (1). During flowering, the plant needs more phosphate and potassium which canbe supplied by adding PK 13/14 for one week, four weeks before harvesting. Result: extra yield. see (2).
Stop giving COGR FLORES a weekbefore harvesting.
Just give water and CANNAZYM during the last week.
Reuse
Due to its solid structure, COGR can be reused 3 timeswithout any problems or quality loss.
Harvest the plant and remove the plant remains abovesoil level, see (1).
Rinse the COGR granulate thoroughly with a double doseof CANNAZYM and allow it to rest for 24 hours, see (2).
BUFFERING AGENT is no longer necessary, so you canbegin planting immediately, see (3).
Irrigation
The guideline for full grown plants is 4-6 litres/m2 a day. Therecommended number of drip feedings is 1 to 3 a day. Drip feeding should preferably take place during the day time when the lamps are on. Provide sufficient drainage (10-20%). With tap water that has a high saltcontent (EC > 0.6 mS/cm2) the percentage drain should be increased to prevent salt accumulation.
Tips
When cultivating in plant trays with a sealable drainage system, it is easier to begin by making the drainage incisions, then turning over the COGr and filling the plant container with the buffering solution.
Once the plants have been in the COGr for two weeks, it is recommended that CANNAZYM be added to the feeding. CANNAZYM breaks down dead roots, provides more air in the slab, prevents plant diseases, stimulates the soil's microlife and makes extra nutrients available to the roots. CANNAZYM can be given continuously with the feeding (dilution 1:400)
or once a week(dilution 1:100). Furthermore, CANNAZYM increases the re-usage possibilities of the COGr.
, and now im not gunna get my green bars and gold stars and get to all the high levels and stuff 
........aaarrrrggghhh
