Current
knowledge about plant organisms possible to ensure that almost all of them are
composed solely of three main elements, which are C, H and O. Plants get both
carbon and oxygen directly from the air by photosynthesis while hydrogen comes
directly or indirectly from soil water. Plants, however, are unable to live
alone based air and water, requiring chemical elements; usually they are
provided at the expense of soil minerals. Interestingly, these elements that
plants get off the ground are those commonly limiting crop developments with best
gardening tools. The growth of plants, except in exceptional
circumstances, such as drought, low temperatures, abnormal soil or disease, is
not seriously altered by a deficiency of C, H and O. This justifies the
importance of soil nutrients and elements that contain. In view of that, the Xiaomi
flower plant tester is very useful.
Many
factors would make a difference to absorption of nutrients. These factors
include the following:
1.
Soil texture
Fine
textured soils have a greater external surface, so that agents that alter their
structure have a greater chance of action: 1 g of colloidal clay has an outer
surface 1,000 times greater than that presented by the same amount of coarse
sand.
2. PH
For
example, iron in basic medium results in an insoluble hydroxide. At other times
volatile compounds, which are lost as they escape into the atmosphere, occur;
as in the case of ammonium fertilizers, in basic soils produce ammonia, part of
which is lost to the atmosphere when the fertilizer contribution is made in the
soil surface. And we are able to test the pH with some specific tools, like the
digital
pH tester.
3.
Interactions between ions
Sometimes
interactions between two ions which hinder or facilitate the absorption of one
occur. antagonism occurs when one of the ions tend to inhibit the absorption of
other, especially when the concentration of one of them. This is the case, for
example, potassium-magnesium antagonism, where the highest concentration of
potassium results in poor absorption of magnesium. Synergism occurs when one of
the ions enhances the absorption of another, as occurs, for example, nitrogen and
potassium.
4.
Climate
The factors that most influence the absorption are temperature and
humidity. As the temperature increases the absorption is increased due to
increased biochemical activity, to reach an optimal level above which
progressively decreases until standstill. At low temperatures otherwise it is
hampered because the biochemical activity and a decrease in solubility occurs
in the soil occurs. Similarly, it happens that with increasing moisture
increase occurs in nutrient absorption.
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