Let's start with light as it is the most important part of indoor gardening.
With natural outdoor "light", Mother Nature pays attention to the proper
light balance and intensity for a healthy plant. Your indoor light system
must be able to accomplish the same. Now let's look at air exchange and
circulation, the lack of Co2 in the garden, excess heat and humidity or
stale air, knowing the importance of such elements. We cannot forget the
importance of water! The most common disorders are to do with water with
plants consisting of about 90 percent water, depending on it for all their
functions. Now on to the topic of nutrients. The nutrients most essential
to plant growth are nitrogen, phosphorus ( phosphates ) and potassium (
potash ) and are referred to as major nutrients. Boron, calcium, chlorine,
copper, iron, magnesium, manganese, molybdenum, sodium, sulphur, and let's
not forget zinc, which all are required in much smaller amounts and are
referred to as minor or ( trace ) nutrients. Imbalances become apparent
when symptoms such as thin, spindly growth and deficiencies also show as
poor fruit set or damaged crops.