SILICON IN AGRICULTURE
Silicon has over a quarter of the total weight of the Earth's crust and is the second most abundant element in the crust after oxygen.
It is never found in the free state , but some minerals such as quartz, feldspar, amethyst, flint, mica, Jasper oé the Opal. Therefore it forms part of rocks, granite, sand, clay and generally biological and mineral elements, which constitute the soil in which agricultural crops are grown.
It is essential in many biological processes of all living beings developed structural functions, protection and control among others.
Assimilate living organisms principally in the form of organic silicon or monosilicic acid(H4SiO4).
On the floor of crops is mainly in mineral form ( polymer ) portion of the structure itself ; rock, sand and clay, however, silicon can not be assimilated in mineral form by plants , they absorb only in the form of silicic acid. (Organic Silicon).