|What are all the ingredients of fertilizers?|
|Question Date: 2017-10-17|
That depends on the fertilizer. Plants need four
elements that they have trouble getting out of the
air or water: nitrogen, magnesium, phosphorous,
and sulfur. Some plants work together with
bacteria who can get the nitrogen from the air,
but even these plants need the magnesium,
phosphorous, and sulfur. Of these, phosphorous
is usually what limits plant growth - plants need
lots of it, and it is less common than the
So, if you're growing plants that don't make
friends with bacteria, then you need to put
nitrogen in your fertilizer, but otherwise, you
mainly need the phosphorous.
It so happens that volcanoes put out
lots of these elements (except for nitrogen). This
is why volcanic soil is so good at growing things,
and why people tend to crowd the slopes of
dangerous volcanoes to find good farmland. For
these reasons, volcanic ash is a common thing
to put into fertilizer, since nature has
already provided all of the ingredients in one
Fertilizers are any material that enhances
the growth of plants, so there are a variety
of them and each has different ingredients.
However, most fertilizers contain a few of the
same ingredients, or macro-nutrients. These are
nitrogen, which promotes leaf growth,
phosphorus, which helps roots grow, and
potassium, which helps make plants disease
resistant and grow more fruit or flowers.
Additionally they may contain calcium,
magnesium, and sulfur and micro nutrients,
including copper, iron, manganese, zinc, and
other rare minerals.
If you are curious about a specific fertilizer,
you can always check on the bag for what the
ingredients are or do a quick google search for
the brand. Hope that helps!
There are different types of fertilizer. Some
only have one ingredient (a compound made of
several chemical elements), and others have more
(several compounds). A typical single-ingredient
fertilizer has a compound made of nitrogen,
oxygen, and hydrogen. The elements in a
typical multi-ingredient fertilizer include
nitrogen, phosphorus, potassium, calcium,
magnesium, and sulfur.
Some fertilizers also have copper,
molybdenum, zinc, and other metals in very small
amounts. All of the elements are present in
the fertilizer as part of a larger molecule, not
as elements with no electric charge. Different
fertilizers are used on different plants because
different plants need different nutrients, but
generally, nitrogen, phosphorus, and potassium
support growth of the plant by providing building
blocks and facilitating movements of water in the
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