circuitous route, first breaking down from
complex molecules through microbial
action, and then dissolving into the water.
Nitrogen (N), Phosphorous (P) and
Potassium (K) are called the macro-
nutrients because plants use large
quantities of them. The percentages of N, P
and K are always listed in the same order
(N-P-K) on fertilizer packages.
Calcium (Ca), sulfur (S), and
magnesium (Mg) are also required in fairly
large quantities. They are often called
secondary nutrients.
Smaller amounts of iron (Fe), zinc (Zn),
manganese (Mn), boron (B), cobalt (Co),
copper (Cu), molybdenum (Mo), and
chlorine (Cl) are also required. These are
called the micro-nutrients.
When marijuana germinates, it requires
a modest amount of N and larger amounts
of P. This supports vigorous root growth
and limits etoliation (stretching) of the stem.
When it goes into its vigorous growth stage,
usually within two weeks, marijuana's need
for N increases. The nutrient is used in
building amino acids, the stuff protein is
made from. During the reproductive stage
when the plant flowers, the female’s flower
growth is promoted by P and K.
Plants which are being grown in soil
mixes or mixes with nutrients added such
compost, worm castings or manure do
better when watered with a dilute soluble
fertilizer, too. When a non-nutritive medium
is used, the nutrients are supplied as a
solution in the water from the beginning.
Typical formulas used for the seedling
and early growth stages include: 7-9-5, 5-
ron
(Ron)
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