Full-Season Cover Crops and Their Traits That Promote Agroecosystem Services

Bibliographic Details
Title: Full-Season Cover Crops and Their Traits That Promote Agroecosystem Services
Authors: Cameron Wagg, Aafke van Erk, Erica Fava, Louis-Pierre Comeau, T. Fatima Mitterboeck, Claudia Goyer, Sheng Li, Andrew McKenzie-Gopsill, Aaron Mills
Source: Agriculture, Vol 11, Iss 9, p 830 (2021)
Publisher Information: MDPI AG, 2021.
Publication Year: 2021
Collection: LCC:Agriculture (General)
Subject Terms: cover crops, multifunctionality, plant-soil interactions, soil health, weed suppression, erosion control, Agriculture (General), S1-972
More Details: Non-marketable crops are increasingly being used as a tool to promote agroecosystem services and sustainable agriculture. Nevertheless, crops vary greatly in the traits by which they capture resources and influence the local ecosystem. Here we report on the traits and associated soil microbial communities that relate to aboveground biomass production, nutrient capture, weed suppression, erosion control and building particulate organic matter of 22 different full-season cover crops. All agroecosystem services were positively correlated with maximum canopy height and leaf area. Rooting density was positively associated with indices of bacterial diversity. While some legumes produced the greatest standing N and P in aboveground biomass, they were also poor at capturing soil nitrate and promoted high levels of potential plant fungal pathogens. Conversely, Brassicaceae crops had the lowest levels of potential plant fungal pathogens, but also suppressed saprophytic fungi and rhizobia. Thus, not all crops are equal in their ability to promote all agroecosystem services, and while some crops may be ideal for promoting a specific agroecosystem service, this could result in a trade-off with another. Nonetheless, our study demonstrates that plant functional traits are informative for the selection of crops for promoting agroecosystem services.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2077-0472
Relation: https://www.mdpi.com/2077-0472/11/9/830; https://doaj.org/toc/2077-0472
DOI: 10.3390/agriculture11090830
Access URL: https://doaj.org/article/e0331b0ac00747728465509b3083d787
Accession Number: edsdoj.0331b0ac00747728465509b3083d787
Database: Directory of Open Access Journals
More Details
ISSN:20770472
DOI:10.3390/agriculture11090830
Published in:Agriculture
Language:English