Humic acids (HA) are organic molecules that play essential roles in improving soil
properties, plant growth, and agronomic parameters. The sources of HA include coal, lignite …

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 …

Bioactive substances, displaying excellent biocompatibility, chemical stability, and
processability, could be extensively applied in biomedicine and tissue engineering. In recent …

The problems arising from the limited availability of natural resources and the impact of
certain anthropogenic activities on the environment must be addressed as soon as possible …

Nanomaterials and plant biostimulants are attracting significant attention for their potential
applications in the agri-food sector. These efforts have mostly focused on the independent …

The demand for biostimulants has been growing at an annual rate of 10 and 12.4% in
Europe and Northern America, respectively. The beneficial effects of humic substances (HS) …

Background The global population is increasing at a pace that food security has become a
major concern. The 20th-century Green Revolution saved billions of people from starvation …

Lignin is a by-product of biorefineries and paper mills and is usually discarded or burnt.
However, it may represent a source of novel fertilising products, able to support the …

Phosphorus (P) deficiency is a major constraint in highly weathered tropical soils. Although
phosphorous rock reserves may last for several hundred years, there exists an urgent need …

Background and aims Biostimulants of natural origin represent a growing ecological strategy
to increase crops productivity, especially when applied in combination with microbial …