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Review

Application of Nematode Community Analyses-Based Models towards Identifying Sustainable Soil Health Management Outcomes: A Review of the Concepts

1
Agricultural Nematology Laboratory, Department of Horticulture, Michigan State University (MSU), East Lansing, MI 48824, USA
2
Department of Plant, Soil and Microbial Sciences, Michigan State University (MSU), East Lansing, MI 48824, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Holger Heuer
Soil Syst. 2021, 5(2), 32; https://doi.org/10.3390/soilsystems5020032
Received: 4 April 2021 / Revised: 10 May 2021 / Accepted: 17 May 2021 / Published: 21 May 2021
Soil health connotes the balance of biological, physicochemical, nutritional, structural, and water-holding components necessary to sustain plant productivity. Despite a substantial knowledge base, achieving sustainable soil health remains a goal because it is difficult to simultaneously: (i) improve soil structure, physicochemistry, water-holding capacity, and nutrient cycling; (ii) suppress pests and diseases while increasing beneficial organisms; and (iii) improve biological functioning leading to improved biomass/crop yield. The objectives of this review are (a) to identify agricultural practices (APs) driving soil health degradations and barriers to developing sustainable soil health, and (b) to describe how the nematode community analyses-based soil food web (SFW) and fertilizer use efficiency (FUE) data visualization models can be used towards developing sustainable soil health. The SFW model considers changes in beneficial nematode population dynamics relative to food and reproduction (enrichment index, EI; y-axis) and resistance to disturbance (structure index, SI; x-axis) in order to identify best-to-worst case scenarios for nutrient cycling and agroecosystem suitability of AP-driven outcomes. The FUE model visualizes associations between beneficial and plant-parasitic nematodes (x-axis) and ecosystem services (e.g., yield or nutrients, y-axis). The x-y relationship identifies best-to-worst case scenarios of the outcomes for sustainability. Both models can serve as platforms towards developing integrated and sustainable soil health management strategies on a location-specific or a one-size-fits-all basis. Future improvements for increased implementation of these models are discussed. View Full-Text
Keywords: agriculture; degradation; ecosystem services; fertilizer use efficiency; nematodes; nutrient cycling; soil amendments; soil food web agriculture; degradation; ecosystem services; fertilizer use efficiency; nematodes; nutrient cycling; soil amendments; soil food web
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MDPI and ACS Style

Melakeberhan, H.; Bonito, G.; Kravchenko, A.N. Application of Nematode Community Analyses-Based Models towards Identifying Sustainable Soil Health Management Outcomes: A Review of the Concepts. Soil Syst. 2021, 5, 32. https://doi.org/10.3390/soilsystems5020032

AMA Style

Melakeberhan H, Bonito G, Kravchenko AN. Application of Nematode Community Analyses-Based Models towards Identifying Sustainable Soil Health Management Outcomes: A Review of the Concepts. Soil Systems. 2021; 5(2):32. https://doi.org/10.3390/soilsystems5020032

Chicago/Turabian Style

Melakeberhan, Haddish; Bonito, Gregory; Kravchenko, Alexandra N. 2021. "Application of Nematode Community Analyses-Based Models towards Identifying Sustainable Soil Health Management Outcomes: A Review of the Concepts" Soil Syst. 5, no. 2: 32. https://doi.org/10.3390/soilsystems5020032

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