Effect of biostimulant raw materials on soybean (Glycine max) crop, when applied alone or in combination with herbicides
Articolo
Data di Pubblicazione:
2023
Citazione:
Effect of biostimulant raw materials on soybean (Glycine max) crop, when applied alone or in combination with herbicides / G. Franzoni, R. Bulgari, F.E. Florio, E. Gozio, D. Villa, G. Cocetta, A. Ferrante. - 5:(2023 Oct 23), pp. 1238273.1-1238273.16. [10.3389/fagro.2023.1238273]
Abstract:
Introduction: Biostimulants exert positive functions in plants, improving yield
and quality, and alleviating the negative effects of abiotic stresses. Among them,
the application of herbicides may cause damage to nontarget plants. At present,
limited information is available regarding the interaction between biostimulants
and herbicides.
Methods: The purpose of the present study was to assess the effect of an
herbicide’s mixture (Harmony ® 50 SX ® + Tuareg ® + Zetrola ® ), used in
combination with several biostimulant raw materials (BRM), on the agronomic
and physiologic characteristics of soybean. The experiments were conducted in
two seasons, 2020 and 2021, applying the herbicides mixture alone or associated
with 10 BRM.
Results: Differences emerged between the two years, considering nitrate, total
sugars concentration, flavonol, and chlorophyll a fluorescence-related
parameters. Chlorophyll content significantly declined (−45% in 2020) in plants
treated with the herbicides mixture alone but, in combination with potassium
silicate, the chlorophyll values were restored to control levels. The same positive
effect observed in response to the combination of potassium silicate and the
herbicide mixture has been confirmed in the second year of experiment. At the
same time, chlorophyll content and Nitrogen Index were positively increased (up
to 8% and 30%, respectively) depending on the application of some BRM and the
year. A significant effect of biostimulants on yield was confirmed by the
application of Ascophyllum nodosum (+16%) and humic acids (+7%), in 2020.
However, the combined use with the herbicides nullifies the increase.
Discussion: The results obtained from these experiments support the use of
biostimulants in improving specific quality traits (chlorophyll content, leaves
nitrogen status, and secondary metabolites accumulation). At the same time,
the potential use of biostimulants in combination with herbicides needs to be
further explored since of external factors (environment, year…) still have a strong
effect on their efficacy.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
abiotic stress; borage; nitrates; protein hydrolysates; seaweed; silicon
Elenco autori:
G. Franzoni, R. Bulgari, F.E. Florio, E. Gozio, D. Villa, G. Cocetta, A. Ferrante
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