Transition in plant-plant facilitation in response to soil water and phosphorus availability in a legume-cereal intercropping system.

ABSTRACT:

Background

The tradeoff between negative and positive interactions of facilitated species and facilitators may depend on the degree of resource availability in agroecosystems. However, the rhizospheric mechanisms driving trade-offs that occur along phosphorus (P) and water availability gradients have not yet been systematically clarified. We established three types of root isolation conditions (no barrier, nylon barrier and solid barrier) at different P and water addition levels to address the above issue in a maize-grass pea intercropping system.

Results

The total yield and biomass net effect (NE) and the relative interaction index (RII) were significantly higher than 0 under all environmental conditions, demonstrating that plant-plant interactions generated positive effect

SUBMITTER: Zhu SG 

PROVIDER: S-EPMC9238078 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature