A. Controllers are used to automate a growing system.
Advantages:
Maintaining optimum levels for the parameters you are needing to achieve
Less stress at all stages of growth
Saves the grower time
Eliminates the guesswork
Consistency of Yield - apply the same control with every crop
Monitors the parameters constantly which are visible to the grower
Disadvantages:
Initial set-up cost
Having inadequate plant management skills
Purchasing a controller not suitable for the job
Not following the manufacturer's instructions
