Growing Medium Type Affects Organic Fertilizer Mineralization and CNPS Microbial Enzyme Activities
| Autor: | René Guénon, Lydie Huché-Thélier, Louise Paillat, Patrice Cannavo, Fabrice Barraud |
|---|---|
| Přispěvatelé: | PREMIER TECH GHA SAS, Unité de Recherche Environnement Physique de la plante Horticole (EPHOR), AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université d'Angers (UA), Institut de Recherche en Horticulture et Semences (IRHS), Université d'Angers (UA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Premier Tech GHA firm, French national association of research and technology (Association Nationale de la Recherche et de la Technologie, ANRT).CIFRE 2017/0752 |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
composted bark engineering.material 01 natural sciences nitrogen horn lcsh:Agriculture Nutrient [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Coir phosphorus coir 2. Zero hunger biology Chemistry carbon Acid phosphatase organic substrate lcsh:S food and beverages 04 agricultural and veterinary sciences Mineralization (soil science) 15. Life on land Agronomy sulfur 040103 agronomy & agriculture biology.protein engineering peat 0401 agriculture forestry and fisheries Nitrification Fertilizer nutrient availability Agronomy and Crop Science Arylsulfatase Organic fertilizer 010606 plant biology & botany |
| Zdroj: | Agronomy, Vol 10, Iss 1955, p 1955 (2020) Agronomy Agronomy, MDPI, 2020, 10 (12), pp.1955. ⟨10.3390/agronomy10121955⟩ Volume 10 Issue 12 |
| ISSN: | 2073-4395 |
| Popis: | Managing plant fertilization is a major concern of greenhouse growers to achieve sustainable production with growing media. Organic fertilization is popular but is more difficult to control, since organic compounds need first to be mineralized by microbes. After 7, 14, 28, and 56 days of incubation, we investigated the response of microbial activities and nutrient releases from three frequently used organic fertilizers (horn and two plant-based fertilizers) in three frequently employed growing media (GM) types (peat, coir, and bark). We measured pH, electrical conductivity, nutrient contents (NH4+-N, NO3&minus N, PO43&minus P, SO42&minus S), and enzyme activities (&beta 1.4-glucosidase, urease, acid phosphatase, arylsulfatase). After fertilization, microbes in coir expressed all the C, N, P, and S functions studied, making related nutrients available. In peat and bark, some C, N, P, and S-related pathways were locked. Peat presented high NH4+-N and PO43&minus P releases linked to high acid phosphatase and &beta glucosidase activities, while bark showed high nitrification rates but weak enzyme activities. Fertilizer types modulated these responses with lower activities and nutrient releases with horn. Our results contributed to better understanding mineralization processes in GM, showing different microbial responses to fertilization. This study pointed out the necessity to look deeper into microbial functions in GM optimizing biological and physicochemical properties. |
| Databáze: | OpenAIRE |
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