Biostimulants and Herbicides: A Promising Approach towards Green Deal Implementation

Abstract

Biostimulants are products that can increase crop growth and can be applied either to the soil or to the plant and seed of a wide range of crops. However, there is a large gap in knowledge regarding the potential interactions of biostimulants with plant protection products like herbicides. The present review aims to highlight various effects of the combined use of biostimulants with herbicides in terms of weed management, crop yield and quality parameters. Special emphasis is given to the comparison between the combined use of biostimulants with herbicides and herbicides used alone (without biostimulants). In wheat and potato, the combined use of biostimulants with herbicides can in some cases be beneficial for the crop compared with herbicides alone, with recorded yield increases of up to 14.7% depending on the biostimulant, the herbicide, the year and the method of application (mixture or sequentially). Combining herbicides and biostimulants shows potential to achieve good weed management while improving crop yields and quality and thus lower herbicide rates could be probably used for sufficient weed control in full agreement with the goals of Green Deal and agroecology approaches.

Effect of biostimulant raw materials on soybean (Glycine max) crop, when applied alone or in combination with herbicides

“…BMR effects were not always consistent in the two consecutive years considered, and these results can be explained by the different environmental conditions in the two experimental years (Supplementary Data Figures S1, S2). A similar effect has been recently reported in other species (potato, wheat, and maize) by Kanatas et al (2022). It is well known that in open field crops are exposed to multiple stress conditions and temperature and rainfall can mitigate or exacerbate the effect of biostimulants.…”

“…Besides, phytotoxic damages induced by herbicides depends on genotypic and environmental conditions (Taylor-Lovell et al, 2001;Chipomho et al, 2023). The combined application of herbicides and biostimulants may help in ameliorating plant growth and diminishing stresses eventually caused by the herbicides (Kanatas et al, 2022). Moreover, the simultaneous application of herbicides and biostimulants may be a good strategy for reducing the application costs.…”

“…As reported above, biostimulants exert a positive effect helping plant to face abiotic stresses. Among them, herbicide-based treatments may represent good physiological stressors that can be used for understanding the mode of action of biostimulants and evaluating to the potential of apply biostimulants to reduce the negative effects of herbicides (Kanatas et al, 2022). Soybean, being sensitive to herbicides, can be a good model crop to carry out a large field comparison.…”

Liczba chwastów oraz ich skład gatunkowy w uprawie ziemniaka po zastosowaniu herbicydu i biostymulatorów

“…[2018] oraz Zarzecka i in. [2020], stosując herbicyd Harrier 295 ZC i biostymulatory Kelpak SL oraz Asahi SL wykazali, iż stosowanie herbicydu z biostymulatorem może umożliwić aplikowanie mniejszej ilości środków ochrony roślin w celu kontroli zachwaszczenia, co potwierdzają również Kanatas i in. [2022].…”

Influence of Sorghum bicolor (L.) Moench. seeds treatment with biological preparations on its sowing qualities

“…Ganzhenko74@gmail.com Постановка проблеми та аналіз останніх досліджень. Побудова кліматично нейтральної економіки, як того вимагає Паризька кліматична угода [1,2] та Європейський зелений курс [3,4] передбачає перехід на ресурсоефективне сільське господарство на основі зменшення використання хімічних добрив та засобів захисту під час вирощування сільськогосподарських культур. Водночас, підвищується значення препаратів біологічного походження, до яких належать біочар та мікоризоутворювальні препарати [5][6][7][8][9].…”