The intercropping cowpea-maize improves soil phosphorus availability and maize yields in an alkaline soil

Latati, Mourad; Breton, Didier; Alkama, Nora; Laoufi, H.; Drevon, Jean‐Jacques; Gérard, Frédéric; Pansu, Marc; Ounane, Sidi Mohamed

doi:10.1007/s11104-014-2214-6

Cited by 128 publications

(99 citation statements)

References 32 publications

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“…The positive effect of N-TotalR on disease severity could be attributed to changes in soil pH. It has been demonstrated that N fixation can increase P availability in the rhizosphere through rhizosphere acidification mechanisms resulting from an increase in H + protons by nodulated roots, organic acids or acid phosphatases (Latati et al, 2014). Our results corroborate previous findings reporting a significant increase of disease severity in association to N availability in the rhizosphere (Shuga et al, 1994;Rao and Krishnappa 1996).…”

Section: Discussionsupporting

confidence: 91%

Effect of Soil Nutrient and Biota Dynamics on Wilt Disease Severity in Chickpea

Moutassem¹,

Belabid²,

Bellik³

et al. 2018

Pak. J. Phytopathol.

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The present study was performed to investigate dynamic and combined effects of soil nutrients (nitrogen and phosphorus) and biotic factors on disease severity of Fusarium wilt in chickpea (AUDPC). Chickpeas were harvested, 180 days after onset of experiment, from eight natural infested soils during two years (2016 and 2017) and assessed for rhizospheric nitrogen (N-TotalR) and phosphorus availability (Olsen-P) in relation to Fusarium oxysporum f.sp ciceris inoculum density (ID-Foc), Trichoderma spp, and Pseudomonas spp as well as nitrogen (N-TotalPL) and phosphorus (P-TotalPL) plants uptake. The results showed that high level of ID-Foc significantly increased AUDPC values. It was found that ID-Foc was negatively correlated with Olsen-P and positively correlated with N-TotalR. Accordingly, AUDPC values were positively correlated with high concentrations of N-TotalR (r=0.77** in 2016, r=0.94*** in 2017) while negatively correlated with high concentrations of Olsen-P (r=-0.73** in 2016, r=-0.79** in 2017). In addition, AUDPC values showed negative interactions with N-TotalPL (r=-0.80** in 2016, r=-0.78** in 2017), whereas positive interactions with P-TotalPL (r=0.80** in 2016, r=0.87** in 2017). Moreover, AUDPC values were negatively associated with Pseudomonas spp and nodosity during the two years of study as with Trichoderma spp in 2017. The results demonstrated that wilt disease severity was strongly associated with nutrients and biological soil properties. It can be assumed that soils with highest Olsen-P levels, Trichoderma spp and Pseudomonas spp can help Fusarium wilt suppression.

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Section: Discussionsupporting

confidence: 91%

Effect of Soil Nutrient and Biota Dynamics on Wilt Disease Severity in Chickpea

Moutassem¹,

Belabid²,

Bellik³

et al. 2018

Pak. J. Phytopathol.

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“…Thus, soil bioavailable P could be defined as the potential supply of available P released from the soil by the rhizospheric processes of plant roots and microbes (Comerford, ). Four potential mechanisms of P acquisition by plants can be generalised: (a) root interception and diffusion of the soluble inorganic P pool that is easily available to the plants via root morphology modifications and mycorrhizal formations (Bolan, ), (b) organic acid complexation and dissolution of the active inorganic P pool that sorb onto clay particles or weakly bind to iron (Fe) or aluminium (Al) precipitates through organic acid exudation (Giles et al, ; Grinsted, Hedley, White, & Nye, ), (c) enzymatic hydrolysis of the labile organic P pool by phosphatase and phytase exudation (Fatemi, Fernandez, Simon, & Dail, ; Giles et al, ), and (d) H + /OH − /HCO 3 − extrusion of the occluded inorganic P pool that is used with difficulty by plants through H + /OH − /HCO 3 − exudation (Hedley et al, ; Latati et al, ) in the rhizosphere by plant roots and soil microbes. Deluca et al () proposed an extraction method that emulates the above four mechanisms through the use of four extractions (CaCl 2 , citric acid, phytase and phosphatase, and HCl) in parallel along a P lability to recalcitrant gradient and defined the four forms of bioavailable soil P as CaCl 2 ‐P, citric‐P, enzyme‐P and HCl‐P, respectively.…”

Section: Introductionmentioning

confidence: 99%

Linkage between tree species richness and soil microbial diversity improves phosphorus bioavailability

Xiang

Ouyang

et al. 2019

Functional Ecology

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Increased availability of soil phosphorus (P) has recently been recognised as an underlying driving factor for the positive relationship between plant diversity and ecosystem function. The effects of plant diversity on the bioavailable forms of P involved in biologically mediated rhizospheric processes and how the link between plant and soil microbial diversity facilitates soil P bioavailability, however, remain poorly understood. This study quantified four forms of bioavailable P (CaCl2‐P, citric‐P, enzyme‐P and HCl‐P) in mature subtropical forests using a novel biologically based approach, which emulates how rhizospheric processes influence the release and supply of available P. Soil microbial diversity was measured by Illumina high‐throughput sequencing. Our results suggest that tree species richness significantly affects soil microbial diversity (p < 0.05), increases litter decomposition, fine‐root biomass and length and soil organic carbon and thus increases the four forms of bioavailable P. A structural equation model that links plants, soil microbes and P forms indicated that soil bacterial and fungal diversity play dominant roles in mediating the effects of tree species richness on soil P bioavailability. An increase in the biodiversity of plants, soil bacteria and fungi could maintain soil P bioavailability and alleviate soil P limitations. Our results imply that biodiversity strengthens plant and soil feedback and increases P recycling. A plain language summary is available for this article.

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“…Most previous studies on cereal-legume intercropping assume implicitly that P and N acquisition by the cereal improves because the legumes are able to mobilize large amounts of P and N compounds [9,12]. Mechanisms that help to alter the rhizosphere processes of both intercropped species have been described [13], including mechanisms affecting soil nutrients availability.…”

Section: Introductionmentioning

confidence: 99%

“…Mechanisms that help to alter the rhizosphere processes of both intercropped species have been described [13], including mechanisms affecting soil nutrients availability. Indeed, cereal-legume intercropping can stimulate rhizosphere acidification through proton release by roots of N 2 -fixing legumes [8,12]. In contrast, alkalization can also enhance rhizosphere P availability in noncalcareous soils [9,14].…”

Section: Introductionmentioning

confidence: 99%

Species Interactions Improve Above-Ground Biomass and Land Use Efficiency in Intercropped Wheat and Chickpea under Low Soil Inputs

Latati

Dokukin

Aouiche³

et al. 2019

Agronomy

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Little is known about how the performance of legumes symbiosis affects biomass and nutrient accumulation by intercropped cereals under the field condition. To assess the agricultural services of an intercropping system; durum wheat (Triticum turgidum durum L.cv. VITRON) and chickpea (Cicer arietinum L.cv. FLIP 90/13 C) were cultivated as both intercrops and sole cropping during two growing seasons under the field trial, to compare plant biomass, nodulation, N and phosphorus (P) uptake, and N nutrition index. Both the above-ground biomass and grain yield and consequently, the amount of N taken up by intercropped durum wheat increased significantly (44%, 48%, and 30%, respectively) compared with sole cropping during the two seasons. However, intercropping decreased P uptake by both durum wheat and chickpea. The efficiency in use of rhizobial symbiosis (EURS) for intercropped chickpea was significantly higher than for chickpea grown as sole cropping. The intercropped chickpea considerably increased N (49%) and P (75%) availability in durum wheat rhizosphere. In the case of chickpea shoot, the N nutrition (defined by the ratio between actual and critical N uptake by crop) and acquisition were higher in intercropping during only the first year of cropping. Moreover, biomass, grin yield, and resource (N and P) use efficiency were significantly improved, as indicated by higher land equivalent ratio (LER > 1) in intercropping over sole cropping treatments. Our findings suggest that change in the intercropped chickpea rhizosphere-induced parameters facilitated P and N uptake, above-ground biomass, grain yield, and land use efficiency for wheat crop.

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The intercropping cowpea-maize improves soil phosphorus availability and maize yields in an alkaline soil

Cited by 128 publications

References 32 publications

Effect of Soil Nutrient and Biota Dynamics on Wilt Disease Severity in Chickpea

Effect of Soil Nutrient and Biota Dynamics on Wilt Disease Severity in Chickpea

Linkage between tree species richness and soil microbial diversity improves phosphorus bioavailability

Species Interactions Improve Above-Ground Biomass and Land Use Efficiency in Intercropped Wheat and Chickpea under Low Soil Inputs

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