Optimizing purslane cultivation through legume intercropping and crop rotation: a study on yield and rhizosphere bacterial communities

IF 3.9 2区农林科学 Q1 AGRONOMY

Plant and Soil Pub Date : 2024-12-02 DOI:10.1007/s11104-024-07061-3

Ángel Carrascosa-Robles, José Antonio Pascual, Jessica Cuartero, Ana de Santiago, Spyridon A. Petropoulos, María del Mar Alguacil

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引用次数: 0

Abstract

Aims

Mixed cropping systems such as intercropping and crop rotation have been proven to be sustainable agronomic tools that provide agro-ecological services and improve crop yield through soil physical, chemical and biological changes in the soil. In this study, we aimed to assess the impact of different mixed cropping systems on a crop well-adapted to high temperatures and low precipitation, like purslane (Portulaca oleracea L.) and to study the underlying microbial mechanisms involved.

Methods

A field experiment in a semiarid region of southern Spain was conducted to study the short-term effects of crop rotation (R) and intercropping (I) with peas or cowpeas, as well as a combination of both (IR) on purslane yield and soil quality parameters such as microbial enzymatic activity, bacterial diversity, microbial composition and functionality.

Results

All the tested treatments increased purslane yield without significant differences among each other, but only the R and IR treatments affected the rhizospheric soil properties, through the increase of the enzymatic activities and the modification of the bacterial composition and functionality, and promoted organic matter degrading bacteria such as Bacillaceae, Myxococcaceae, and Planococcaceae and nitrogen-fixing bacteria, mainly Rhizobiaceae and Beijerinckiaceae.

Conclusion

This study demonstrates how sustainable cropping practices may improve the yield of a low maintenance crop like purslane under low-maintenance conditions by improving soil fertility in semiarid areas and also provides insights into the biological mechanisms responsible for the recorded effects.

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来源期刊

Plant and Soil 农林科学-农艺学

CiteScore

8.20

自引率

8.20%

发文量

543

审稿时长

2.5 months

期刊介绍： Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.