Agroecosystem diversification with legumes or non-legumes improves differently soil fertility according to soil type

Sauvadet, Marie; Trap, Jean; Damour, Gaëlle; Plassard, Claude; Meersche, Karel Van den; Achard, Raphaël; Allinne, Clémentine; Autfray, Patrice; Bertrand, Isabelle; Blanchart, Éric; Deberdt, Péninna; Enock, Séguy; Essobo, Jean‐Daniel; Freschet, Grégoire T.; Hedde, Mickaël; Filho, Elías de Melo Virginio; Rabary, Bodovololona; Rakotoarivelo, Miora; Randriamanantsoa, Richard; Rhino, Béatrice; Ripoche, Aude; Rosalie, Elisabeth; Saj, Stéphane; Becquer, Thierry; Tixier, Philippe; Harmand, Jean‐Michel

doi:10.1016/j.scitotenv.2021.148934

Cited by 21 publications

(8 citation statements)

References 69 publications

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“…Ecological intensification has been proposed as a nature-based alternative that sustains agricultural production while minimizing adverse effects on the environment [2]. Among the key practices to promote ecological intensification, crop diversification has shown positive impacts on both plant production and the environment [2][3][4]. It can contribute significantly to livelihoods, improved health and nutrition, household food security, climate resilience, and ecological sustainability [5].…”

Section: Introductionmentioning

confidence: 99%

Legume Nitrogen Fixation and Symbioses in Low-Inputs Rainfed Rice Rotations

et al. 2021

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Cropping systems with legumes play key roles in farming systems in sub-Saharan Africa. However, how commonly legume associations perform in low input-systems is not well-known. Here, we studied four legume species used in three systems in rotation with upland rice, i.e., groundnut monocropping, sorghum–cowpea intercropping, and velvet bean–crotalaria intercropping, in two fertilization managements on the previous rice, i.e., manure alone or complemented with mineral fertilization. Legume suitability was assessed using rhizobial and mycorrhizal colonization rates, plant biomass production, shoot N and P content, and biological N2 fixation based on their δ15N natural abundance. Shoot and root biomasses varied significantly between legume species and were positively correlated with nodule number (r = 0.49 and 0.74, p-value < 0.05 and <0.001, respectively) and the amount of fixed N (r = 0.73 and 0.50, p-value < 0.001 and <0.05, respectively). The proportion of plant N derived from N2 fixation also varied significantly between species, with a higher percentage for velvet bean (66%), compared to the other three species (50 to 60%). Legume roots were weakly colonized by AM fungi, with similar levels between species. Overall, fertilization management did not significantly impact legume biomass, symbioses, or N2 fixation, yet the organo-mineral fertilization significantly increased legume shoot P content. The lack of effect of mineral fertilization on N2 fixation and biomass could be due to other nutrient deficiencies (Ca, Mg, micronutrients), which can hamper symbioses with rhizobia and mycorrhizae.

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Section: Introductionmentioning

confidence: 99%

Legume Nitrogen Fixation and Symbioses in Low-Inputs Rainfed Rice Rotations

et al. 2021

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“…It has been described by Zhao et al [ 51 ] that the soil fertility and crop productivity can be efficiently increased by practicing legume-based crop rotation. Crop diversification with legumes had significant effect on soil fertility as it improves the status of phosphorus nitrogen, carbon, and soil organic carbon depending upon the soil type [ 52 ]. Similar results were reported in the current study.…”

Section: Discussionmentioning

confidence: 99%

The Impact of Different Weed Management Systems on Weed Flora and Dry Biomass Production of Barley Grown under Various Barley-Based Cropping Systems

Naeem

Farooq

Hussain

2022

Plants

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Weeds are among the major issues responsible for reduction in yield and profit in any crop production system. Herbicides are the easiest and quickest solution of weeds; however, their frequent use exert negative consequences on environment, human health, and results in the evolution of herbicide-resistant weed species. Due to these reasons, alternative weed management methods that are less harmful to environment and human health are needed. This two-year study evaluated the impact of different weed management options, i.e., false seedbed (FS), allelopathic water extracts (AWE), chemical control (CC), weed-free (WF) weedy-check (WC) on weed spectrum in various barley-based cropping systems, i.e., fallow-barley (FB), maize-barley (MB), cotton-barley (CB), mungbean-barley (M*B), and sorghum-barley (SB). Data relating to density, diversity, and biomass production of weed species prevailing in the studied cropping systems were recorded. Interactive effect of weed management methods and barley-based cropping systems significantly altered weed diversity, and densities of individual, broadleaved, and grassy weeds. A total 13 weed species (ten broadleaved and three grass) were recorded during both years of study. The highest dry biomass, diversity, and density of individual, broadleaved, and grassy weeds were noted in WC treatment, whereas WF treatment resulted in the lowest values of these traits. Chemical control resulted in the highest suppression of weed flora and improved dry biomass production of barley followed by AWE. The SB cropping system with CC or AWE resulted in the least weed flora. The M*B cropping system with CC or AWE produced the highest dry biomass of barley. It is concluded that including sorghum crop in rotation and applying AWE could suppress weeds comparable to herbicides. Similarly, including mungbean in rotation and applying AWE could increase dry biomass production of barley. In conclusion, herbicides can be replaced with an eco-friendly approach, i.e., allelopathy and inclusion of sorghum crop could be helpful in suppressing weed flora.

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“…This is the reason for the highest C:N ratio in N‐IP. A suitable C:N ratio can further accelerate soil N mineralization and release, which facilitates its uptake by plants (Sauvadet et al, 2021). Under salt stress, excessive salt ions disturb ion homeostasis and thus affect soil available nutrient contents (Sanchez‐Montesinos et al, 2019); thus, most rhizosphere nutrient contents exhibit a significant decreasing trend under salt stress (except for AP and TK).…”

Section: Discussionmentioning

confidence: 99%

“…This is the reason for the highest C:N ratio in N-IP. A suitable C:N ratio can further accelerate soil N mineralization and release, which facilitates its uptake by plants (Sauvadet et al, 2021) most rhizosphere nutrient contents exhibit a significant decreasing trend under salt stress (except for AP and TK). Related studies suggest that legume crop roots secrete malate and citrate into the rhizosphere to improve the soil P availability when the soil is under stress and nutrient availability becomes limited (Li et al, 2007;Zhou et al, 2016).…”

Section: Function Prediction Of the Microbial Communitymentioning

confidence: 99%

Peanut/sorghum intercropping drives specific variation in peanut rhizosphere soil properties and microbiomes under salt stress

et al. 2022

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Intercropping can promote positive plant-soil interactions resulting in improved nutrient availability and ecological fitness, with microbes playing a key role. However, the specific effects of peanut/sorghum intercropping on soil properties and microbial community remain unclear, especially under salt stress conditions. In this study, sole-cropped peanut (SP) and intercropped peanut (IP) with sorghum in a field planting box experiment were performed under normal (N) and salt-stress (S, 0.25% NaCl) conditions, aims to investigate the specific response of peanut rhizosphere soil properties and microbial community to salt stress. The results showed that soil salinity negatively affects soil nutrient availability and enzymatic activities. To a certain extent, S-IP has a definite effect on the improvement of soil properties, and ammonium nitrogen (NH 4 + -N) increased 5.45%, total phosphorus (TP) increased 8.01%, soil organic carbon (SOC) increased 4.02%, soil peroxidase (POD) increased 8.15%, soil nitrate reductase (NR) increased 17.07%, and soil fructose-1,-6-biphosphate aldolase enzyme (FDA) increased 16.26% compared with S-SP. Alterations of soil properties affect the microbial community structure and predicted function. Microbial community analysis revealed that the relative abundance of Massilia (5.79-times), Conocybe (47.43-times), Funneliformis (1.59-times), and Talaromyces (14.49-times) were significantly increased in S-IP compared to S-SP.Furthermore, the proportions of microbe associated with the saprotrophs were increased and pathogens were reduced in S-IP than in S-SP. Thus, peanut/sorghum intercropping under salt stress affects the potential functions of a microbial community by changing the soil properties and remodeling the microbial community, which had potential effects on improving the environmental adaptability and yield of peanuts.

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Agroecosystem diversification with legumes or non-legumes improves differently soil fertility according to soil type

Cited by 21 publications

References 69 publications

Legume Nitrogen Fixation and Symbioses in Low-Inputs Rainfed Rice Rotations

Legume Nitrogen Fixation and Symbioses in Low-Inputs Rainfed Rice Rotations

The Impact of Different Weed Management Systems on Weed Flora and Dry Biomass Production of Barley Grown under Various Barley-Based Cropping Systems

Peanut/sorghum intercropping drives specific variation in peanut rhizosphere soil properties and microbiomes under salt stress

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