Profiling of microbial PLFAs: Implications for interspecific interactions due to intercropping which increase phosphorus uptake in phosphorus limited acidic soils

He, Yan; Ding, Na; Shi, Jiachun; Wu, Man; Liao, Hong; Xu, Jianming

doi:10.1016/j.soilbio.2012.07.027

Cited by 106 publications

(76 citation statements)

References 37 publications

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“…In addition to direct rootinduced chemical processes, indirect interspecific P facilitation in the rhizosphere can occur as a consequence of shifts in microbial community structure, biomass or activity (He et al, 2013;Tang et al, 2014; (Jorquera et al, 2008) and other organic-P-mineralizing microbes in intercropping conditions (He et al, 2013). Theoretically, rhizodeposits may release P via stimulation of mineralization of soil organic matter (carbon priming) and contribute to increased P uptake in the companion crop.…”

Section: Interspecific Facilitationmentioning

confidence: 99%

Crop acquisition of phosphorus, iron and zinc from soil in cereal/legume intercropping systems: a critical review

Xue

Xia

Christie

et al. 2016

Ann Bot

191

132

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Background Phosphorus (P), iron (Fe) and zinc (Zn) are essential elements for plant growth and development, but their availability in soil is often limited. Intercropping contributes to increased P, Fe and Zn uptake and thereby increases yield and improves grain nutritional quality and ultimately human health. A better understanding of how intercropping leads to increased plant P, Fe and Zn availability will help to improve P-fertilizer-use efficiency and agronomic Fe and Zn biofortification.Scope This review synthesizes the literature on how intercropping of legumes with cereals increases acquisition of P, Fe and Zn from soil and recapitulates what is known about root-to-shoot nutrient translocation, plant-internal nutrient remobilization and allocation to grains.Conclusions Direct interspecific facilitation in intercropping involves below-ground processes in which cereals increase Fe and Zn bioavailability while companion legumes benefit. This has been demonstrated and verified using isotopic nutrient tracing and molecular analysis. The same methodological approaches and field studies should be used to explore direct interspecific P facilitation. Both niche complementarity and interspecific facilitation contribute to increased P acquisition in intercropping. Niche complementarity may also contribute to increased Fe and Zn acquisition, an aspect poorly understood. Interspecific mobilization and uptake facilitation of sparingly soluble P, Fe and Zn from soil, however, are not the only determinants of the concentrations of P, Fe and Zn in grains. Grain yield and nutrient translocation from roots to shoots further influence the concentrations of these nutrients in grains.

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Section: Interspecific Facilitationmentioning

confidence: 99%

Crop acquisition of phosphorus, iron and zinc from soil in cereal/legume intercropping systems: a critical review

Xue

Xia

Christie

et al. 2016

Ann Bot

191

132

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“…These were either directly affected by root activities (e.g., exudation of a phosphorus-mobilizing compound) or mediated by rhizosphere microbial activities (e.g., phosphatase activities involved in the mobilization of organic phosphorus). He et al (2013) have recently shown in field conditions that rhizosphere microbial communities were involved in increasing the performance of cereal-legume associations.…”

Section: Plant Diversity In Multiple Cropping Systemsmentioning

confidence: 99%

Multiple cropping systems as drivers for providing multiple ecosystem services: from concepts to design

Gaba

Lescourret

Boudsocq

et al. 2014

Agron. Sustain. Dev.

287

190

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Provisioning services, such as the production of food, feed, and fiber, have always been the main focus of agriculture. Since the 1950s, intensive cropping systems based on the cultivation of a single crop or a single cultivar, in simplified rotations or monocultures, and relying on extensive use of agrochemical inputs have been preferred to more diverse, self-sustaining cropping systems, regardless of the environmental consequences. However, there is increasing evidence that such intensive agroecosystems have led to a decline in biodiversity as well as threatening the environment and have damaged a number of ecosystem services such as the biogeochemical nutrient cycles and the regulation of climate and water quality. Consequently, the current challenge facing agriculture is to ensure the future of food production while reducing the use of inputs and limiting environmental impacts and the loss of biodiversity. Here, we review examples of multiple cropping systems that aim to use biotic interactions to reduce chemical inputs and provide more ecosystem services than just provisioning. Our main findings are the identification of underlying ecological processes and management strategies related to the provision of pairs of ecosystem services namely food production and a regulation service. We also found gaps between ecological knowledge and the constraints of agricultural practices in taking account of the interactions and possible trade-offs between multiple ecosystem services as well as socioeconomic constraints. We present guidelines for the design of multiple cropping systems combining ecological, agricultural, and genetic concepts and approaches.

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“…HE et al (2012), testing green manures intercropping with maize in acid soils, deficient in phosphorus, verified that the interspecific stimulation of phosphorus adsorption can be a general phenomenon, more controlled by the phosphorus available in the soil than in the species cultivated, or type of soil. The authors also verified that the effect of the green manure is related to alteration of the microbial community in the rhizosphere, however this effect is less expressive in acid soils, as the observed in the present study.…”

Section: Resultsmentioning

confidence: 89%

Effect of green manure and sources of phosphorus on the morphology and yield of maize plants

Umburanas

Kawakami

Eschemback

et al. 2013

Revista Brasileira De Tecnologia Aplicada Nas Ciências Agrárias

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The aim of this study was to evaluate the behavior of the maize crop in succession to different species of green manures, with different sources of phosphorus and their interaction. A completely randomized block in a split plot design was used, with three main treatments and seven secondary treatments, with three replications. The treatments consisted of three sources of phosphorus (plots) and six species of green manures (subplots). It was used maize plants of cultivar Premium Flex ® . It were evaluated plant height, leaf number, stem diameter, leaf area index, leaf and stem dry weight, specific leaf area, ear number, mass of one hundred grains, stand and yield. There was no interaction effect on all traits. However, the dry weight of stem and seed yield showed significant difference between the sources of phosphorus, with positive results for both sources of phosphorus in relation to the control. This suggests that the shoot dry weight is responsive to the presence of phosphorus. It was observed that the phosphate rock has potential to achieve crop yield similar to that obtained with superphosphate.

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Profiling of microbial PLFAs: Implications for interspecific interactions due to intercropping which increase phosphorus uptake in phosphorus limited acidic soils

Cited by 106 publications

References 37 publications

Crop acquisition of phosphorus, iron and zinc from soil in cereal/legume intercropping systems: a critical review

Crop acquisition of phosphorus, iron and zinc from soil in cereal/legume intercropping systems: a critical review

Multiple cropping systems as drivers for providing multiple ecosystem services: from concepts to design

Effect of green manure and sources of phosphorus on the morphology and yield of maize plants

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