| Add Nutrients According to Label
Instructions or Growing Schedule
Tank volumes for WILMA system options
10 pot system - 60 litres 8 pot system - 70 litres
The maximum fill level for all systems is when the solution reaches the lowest drain point of the tray.
Guidance for Planting
Only strong, healthy transplants or cuttings should be placed in the WILMA system. Pots or plastic wraps (rockwool blocks) should be removed, but do not wash off any propagation medium. Plant so that chosen medium for growing just covers propagation block, but without burying seed leaves or first true leaf.
Maintenance
There are no daily tasks associated with your WILMA system. Maintain solution strength and pH according to nutrient label instructions or growing schedule. The nutrient solution should be completely changed once a month, or more often depending on relative plant maturity, speed of growth and environmental conditions. All the drippers should be checked occasionally to ensure correct flow rates, and the system should be flushed thoroughly with a weak acid solution or other cleaning agent between crops and then flushed thoroughly with water before replanting. Ata-clean can also be added to nutrient solutions to prevent blockages.
Suggested System Running Times
Experience will show the best way to run the WILMA systems, but these are guidelines for beginners. It is a good idea to use a 15 minute segmental timer to automate the system.
Young Plants
It is better to run the system for a few short periods than one long watering. Young plants need less watering than mature plants. Slight under watering is better than over watering. 1 – 2 periods per day will usually be sufficient for most young plants. Do not over feed when young. New plants will be ok at approximately half dose nutrient strength.
Mature Plants
Observation of the plant is needed to decide on the amount of watering. NO media should be allowed to dry out completely. The maximum number of floods is 1 ‘on’ period per hour during daylight hours, though most fully mature plants will not need this many.
Tips / Hints
Solution heating should not be necessary except where environmental conditions dictate, (low night-time temperatures). When changing solution, plants may benefit from one watering with just water, to prevent any build up of unused nutrient salts (particularly in soil-type media).
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