From Lab to Field: Role of Humic Substances Under Open-Field and Greenhouse Conditions as Biostimulant and Biocontrol Agent.

Autor:	Jindo K; Agrosystems Research, Wageningen University and Research, Wageningen, Netherlands., Olivares FL; Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (NUDIBA), Universidade Estadual do Norte Fluminense Darcy Ribeiro, UENF, Rio de Janeiro, Brazil., Malcher DJDP; Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (NUDIBA), Universidade Estadual do Norte Fluminense Darcy Ribeiro, UENF, Rio de Janeiro, Brazil., Sánchez-Monedero MA; Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafolog a y Biología Aplicada del Segura (CEBAS)-Consejo Superior de Investigaciones Cient ficas (CSIC), Campus Universitario de Espinardo, Murcia, Spain., Kempenaar C; Agrosystems Research, Wageningen University and Research, Wageningen, Netherlands., Canellas LP; Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (NUDIBA), Universidade Estadual do Norte Fluminense Darcy Ribeiro, UENF, Rio de Janeiro, Brazil.
Jazyk:	angličtina
Zdroj:	Frontiers in plant science [Front Plant Sci] 2020 May 12; Vol. 11, pp. 426. Date of Electronic Publication: 2020 May 12 (Print Publication: 2020).
DOI:	10.3389/fpls.2020.00426
Abstrakt:	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) as biostimulants of plant growth have been well-known since the 1980s, and they can be supportive to a circular economy if they are extracted from different renewable resources of organic matter including harvest residues, wastewater, sewage sludge, and manure. This paper presents an overview of the scientific outputs on application methods of HS in different conditions. Firstly, the functionality of HS in the primary and secondary metabolism under stressed and non-stressed cropping conditions is discussed along with crop protection against pathogens. Secondly, the advantages and limitations of five different types of HS application under open-fields and greenhouse conditions are described. Key factors, such as the chemical structure of HS, application method, optimal rate, and field circumstances, play a crucial role in enhancing plant growth by HS treatment as a biostimulant. If we can get a better grip on these factors, HS has the potential to become a part of circular agriculture. (Copyright © 2020 Jindo, Olivares, Malcher, Sánchez-Monedero, Kempenaar and Canellas.)
Databáze:	MEDLINE
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