Humic substances (HS) are dominant components of soil organic matter and are recognized
as natural, effective growth promoters to be used in sustainable agriculture. In recent years …

Vertical farming is on its way to becoming an addition to conventional agricultural practices,
improving sustainable food production for the growing world population under increasing …

Soilless cultivation represent a valid opportunity for the agricultural production sector,
especially in areas characterized by severe soil degradation and limited water availability …

Background To improve plant phosphorus (P)-acquisition efficiency to secure sustainable
food production, an important step is to increase the concentration of plant-available P in the …

Improvement of plant iron nutrition as a consequence of metal complexation by humic
substances (HS) extracted from different sources has been widely reported. The presence of …

Poor iron (F e) availability in soil represents one of the most important limiting factors of
agricultural production and is closely linked to physical, chemical and biological processes …

Goethite, hematite, ferrihydrite, and other iron oxides bind through various sorption reactions
with humic substances (HS) in soils creating nano-, micro-, and macro-aggregates with a …

Iron (Fe) is an essential micronutrient for plant growth and productivity and, among other
micronutrients, is the one required in higher amounts. In most soils, Fe occurs at relatively …

Iron deficiency is a frequent problem for many crops, particularly in calcareous soils and iron
humates are commonly applied in the Mediterranean basin in spite of their lesser efficiency …

Since the beginning of Human civilization, the soil organic matter has been used as plant
growth promoter and/or regulator. Indeed, early in plant science history, even before the …