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@article{2250897,
author = {Hammerschmiedt, Tereza and Kintl, Antonin and Holatko, Jiri and Mustafa, Adnan and Vítěz, Tomáš and Malicek, Ondrej and Baltazar, Tivadar and Elbl, Jakub and Brtnicky, Martin},
article_location = {Lausanne},
article_number = {December},
doi = {http://dx.doi.org/10.3389/fpls.2022.1017191},
keywords = {waste management; agriculture; organic fertilizer; microbial activity; nutrient cycling},
language = {eng},
issn = {1664-462X},
journal = {Frontiers in Plant Science},
title = {Assessment of digestates prepared from maize, legumes, and their mixed culture as soil amendments: Effects on plant biomass and soil properties},
url = {https://doi.org/10.3389/fpls.2022.1017191},
volume = {13},
year = {2022}
}
TY - JOUR
ID - 2250897
AU - Hammerschmiedt, Tereza - Kintl, Antonin - Holatko, Jiri - Mustafa, Adnan - Vítěz, Tomáš - Malicek, Ondrej - Baltazar, Tivadar - Elbl, Jakub - Brtnicky, Martin
PY - 2022
TI - Assessment of digestates prepared from maize, legumes, and their mixed culture as soil amendments: Effects on plant biomass and soil properties
JF - Frontiers in Plant Science
VL - 13
IS - December
SP - 1-14
EP - 1-14
PB - Frontiers Media S.A.
SN - 1664462X
KW - waste management
KW - agriculture
KW - organic fertilizer
KW - microbial activity
KW - nutrient cycling
UR - https://doi.org/10.3389/fpls.2022.1017191
N2 - Digestate prepared from anaerobic digestion can be used as a fertilizer, as it contains ample amounts of plant nutrients, mainly nitrogen, phosphorous, and potassium. In this regard, digestates produced from mixed intercropped cereal and legume biomass have the potential to enrich soil and plants with nutrients more efficiently than monoculture-based digestates. The objective of this study was to determine the impact of different types of digestates applied at a rate of 40 t·ha-1 of fresh matter on soil properties and crop yield in a pot experiment with lettuce (Lactuca sativa) as a test crop. Anaerobic digestion of silages was prepared from the following monocultures and mixed cultures: broad bean, maize, maize and broad bean, maize and white sweet clover, and white sweet clover. Anaerobic digestion was performed in an automatic custom-made system and applied to the soil. Results revealed that fresh and dry aboveground biomass as well as the amount of nitrogen in plants significantly increased in all digestate-amended variants in comparison to control. The highest content of soil total nitrogen (+11% compared to the control) and urease (+3% compared to control) were observed for maize digestate amendment. Broad bean digestate mediated the highest oxidizable carbon (+48%), basal respiration (+46%), and N-acetyl-β-D-glucosamine-, L-alanine-, and L-lysine-induced respiration (+22%, +35%, +22%) compared to control. Moreover, maize and broad bean digestate resulted in the highest values of N-acetyl-β-D-glucosaminidase and β -glucosidase (+35% and +39%), and maize and white sweet clover digestate revealed the highest value of arylsulfatase (+32%). The observed differences in results suggest different effects of applied digestates. We thus concluded that legume-containing digestates possibly stimulate microbial activity (as found in increased respiration rates), and might lead to increased nitrogen losses if the more quickly mineralized nitrogen is not taken up by the plants.
ER -
HAMMERSCHMIEDT, Tereza, Antonin KINTL, Jiri HOLATKO, Adnan MUSTAFA, Tomáš VÍTĚZ, Ondrej MALICEK, Tivadar BALTAZAR, Jakub ELBL and Martin BRTNICKY. Assessment of digestates prepared from maize, legumes, and their mixed culture as soil amendments: Effects on plant biomass and soil properties. \textit{Frontiers in Plant Science}. Lausanne: Frontiers Media S.A., 2022, vol.~13, December, p.~1-14. ISSN~1664-462X. Available from: https://dx.doi.org/10.3389/fpls.2022.1017191.
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