Potassium is another essential element indispensable for the growth and development of citrus, it has been demonstrated the essentiality of K as a coenzyme of numerous enzymes.
▶ As well as the requirement of high amounts of K during protein synthesis, it is particularly important in photosynthesis and as a water regulator in plant cells.

▶ Credits: intechopen – [Image of Public Domain]
Potassium fertilization has a major impact on the concept of fruit quality. Deficiency causes a decrease in plant vegetative vigor and a decrease in yield.
Let's remember that in the soil live millions of living beings, indispensable for the fertility and health of the soil, which are of multiple sizes.
Even some are so small that to see them you must use a microscope, these are called microorganisms. others are observed that are not so small.
But their size is small, their identification depends on the use of a magnifying glass or a stereoscope , in addition , there are larger organisms such as earthworms , nematodes , hundred feet , which are called mesofauna or macrofauna.
NOTE: Reference material.