Agriculture Reference
In-Depth Information
SOIL
Soil comes in many types and varieties. What you will find as
you go along is that you will add various ingredients to your soil to
improve plant growth.
The Cannabis plant will grow long and winding roots into the
soil. These roots absorb water and other minerals from the soil to help
it grow. The soil also goes through dry periods when you do not water
your plant or when the plant has absorbed most of the water. During
these dry periods air is allowed to creep in between the soil particles,
allowing the roots to breathe.
There are 3 main factors to look at when buying soil. (1) pH,
(2) Nutrients and (3) Structure.
pH
pH is a way of measuring how much acid and alkaline is in
the soil. The pH scale runs from 1 - 14. 7 is neutral, 0 is very acidic
and 14 is very alkaline. Cannabis plants in soil like a pH of 7. When
choosing your soil you should be looking for a pH of 7. It should tell
you this on the bag. Going above or below this mark can cause your
plant problems during growth. Small pH meters (Figure 5.18) can be
bought in most gardening shops and can be used to measure the
overall pH of your soil.
 
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