Page 23 - AWA Vol. 42-No.2 issue

SOil NUTRiTiON

innovative biostimulant products for a sustainable growth:

Activeg and Dynamic improve yields, quality and resistance of crops
EU has classified as “biostimulants” all the products stimulat-
ing crops nutritional processes, regardless of their nutrients
content, with the only purpose of improving one or more of the
following characteristics of plants or rhizosphere:
• nutrients use efficiency (NUE);
• tolerance against abiotic stress;
• quality characteristics;
• availability of nutrients in soil or rhizosphere.
Biostimulants are divided into various categories, such as hu-
mic substances, brown seaweeds, protein hydrolyzates and sil-
icon.
Specifically, protein hydrolysates contain:
• free amino acids and peptides;
• carbohydrates;
• minerals;
•other molecules (triacontanol, polyamines); growth and stress reaction. Among the active substances in such
• phytohormones (plant origin). biostimulant we have triacotanol (a long-chain alcohol that stim-
Protein hydrolysates originate from the hydrolysis process ulates plants metabolism even under stress conditions) and left-
(chemical or enzymatic), obtaining products with amino acids handed amino acids, which are directly assimilated by crops.
and peptides. The degree of hydrolysis varies depending on Experimental trials have proven that Activeg stimulates root
the method used. and vegetative development of young plants, promotes biomass
Amino acids exist in two forms: left-handed and right-handed. production, improves the use of nitrogen and increases the Brix
We focus on left-handed amino acids, directly used by plants (°Bx) content.
for protein synthesis, energy production and plant resistance Dynamic is a fluid mix of organic nitrogen fertilizers. It contains
against water and heat stress. free amino acids that can be rapidly assimilated, such as alanine
The quality of protein hydrolysates depends on the racemiza- (useful to improve resistance against environmental stress),
tion degree: the higher the ratio of right-handed to total amino phenylalanine (essential for lignification of plants tissue) and
acids, the better the product’s quality. The most common form of leucine (a precursor of flavours and ripening). Experimental
amino acids varies depending on the type of hydrolysis used. In tests have shown that Dynamic increases:
particular, high temperatures and high pH values lead to a more • ascorbic acid production, which prevents the risk of fungal
relevant presence of right-handed amino acids. infections and neutralizes free radicals;
In this article, we show two protein hydrolysates in our catalog: • weight and number of fruits per plant;
Activeg and Dynamic. • dry matter;
Let’s see them in detail: • leaves color’s intensity;
Activeg is an enzymatic hydrolyzate of Fabaceae. Enzymatic • calcium, magnesium and potassium levels.
hydrolysis allows to obtain a high-quality fertilizer thanks to the Such biostimulant has also shown a reduction in nitrate levels
production of signal peptides, which are low-molecular-weight of leafy vegetables (experimental test on rocket).
molecules able to influence plants physiology and, therefore, Circle 29 on enquiry card

Redox Bio-Nutrients becomes first company

to have two certified biostimulant products

Redox Bio-Nutrients, LLC announced that its bio- cium and silicon nutrition that increases cell wall
stimulant product Mainstay® Si received a top strength in the plant, improving crop quality and
certification from The Fertilizer Institute (TFI), indi- bolstering stress defense.
cating that the product meets industry recognized The Biostimulant Certification Program benefits
standards for efficacy, safety, and composition. manufacturers, ag retailers, and growers. Program
Mainstay® Si joins Mainstay® Calcium 2.0 with priorities of efficacy, safety, and composition pro-
TFI certification. Having two such certifications is vide confidence to stakeholders and support the
an unprecedented accomplishment among the vast continued development of sustainable agriculture
field of biostimulant companies. practices.
Redox Bio-Nutrients is also ISO 9001 certified. ISO
“These certifications further validate our all-in
commitment to providing growers with technology 9001 is a global quality standard that keeps our
processes controlled and consistent, ensuring our
that consistently delivers positive results,” Redox company delivers reliable, high-quality products
President Colton Moon said. with a commitment to customer satisfaction.
Mainstay® Si is a unique combination of cal- Circle 30 on enquiry card
Vol. 42 No. 2 21