I always thought the paradox of plant nutrition, I go back to a university classroom of National Trujillo, Plant Physiology labs, extensive reading and a unique language to understand the physiology of plants, a good dose of imagination and broad concepts that apply ficofisiología bacterial physiology, knowledge that a good microbiologist, can not fail to assimilate.
In this, we know that the trace elements are essential and indispensable, although foliar dry matter analysis, indicates that it contains more than 1.5% nitrogen less and no more than 0.0025% Iron, seems not to be significant, but if you exponenciamos to obtain a ton of crop product, we, many deficiencies that the farmer must take into account, perhaps the reason why today more and more people we go to the pharmacies mineral supplement to balance our diet.
Now, remember that all the nutrients are absorbed in ionic form, I brought this to mind for a brief questioning of a few days ago by a friend Vid specialist, Phosphorus, Boron and Molybdenum are absorbed as phosphates, borates and molybdates, nitrogen as nitrate, nitrite or ammonium necessarily dissolved in the solution. But the Potassium, Magnesium, Iron, Calcium, Manganese, Zinc and Copper cations only.
And as for root uptake is exposed to electro-physical characteristics of the soil, I recommend foliar feeding, due to the movement via phloem throughout the body distributes plant nutrients and considering that it is much better chelated with an organic molecule, which act more a link coordin ation rather simple salts, even in applications for fertigation chelating function can be above properties blockers alkaline soil, placing microcells available roots or leaf cells particularly in my formulations do not like using synthetic chelators, prefer organic, sugars, amino acids, phenolic, high efficiency and low fitotoxicidasd, improves compatibility of common chemicals, and has a higher affinity for tissue analysis.