Roots of the Second Green Revolution
Citations
1,677 citations
Cites background from "Roots of the Second Green Revolutio..."
...In addition, the efflux of organic acids, which displace cations from their binding sites in the soil, and the secretion of enzymes capable of degrading organic compounds, such as phytate, that chelate cations can also improve the acquisition of Fe, Zn and Cu (Morgan et al., 2005; Lynch, 2007)....
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...Soil micro-organisms can also be exploited to increase the volume of soil explored by crop plants and the phytoavailability of mineral elements (Rengel et al., 1999; Barea et al., 2005; Morgan et al., 2005; Lynch, 2007; Kirkby & Johnston, 2008)....
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...Crop yields in developing countries are restricted principally by drought, low phytoavailability of P and/or nitrogen (N), and soil acidity, which is often associated with Al toxicity and low phytoavailability of Ca, Mg and K (Lynch, 2007; Kirkby & Johnston, 2008)....
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...However, because the symbiotic relationship between plants and mycorrhizal fungi is fuelled by photosynthate from plants, such associations can reduce yields in well-fertilized soils (Morgan et al., 2005; Lynch, 2007)....
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...This work aims to improve both the acquisition of mineral elements and their physiological utilization in the plant for improved yields (Lynch, 2007)....
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896 citations
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789 citations
Cites background from "Roots of the Second Green Revolutio..."
...The development of crop genotypes with enhanced phosphorus acquisition efficiency (PAE) represents an important opportunity to improve food security in developing nations, where crop yields are severely limited by low phosphorus availability (Lynch, 2007)....
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...9), they are under relatively simple genetic control, and are amenable to direct phenotypic selection (Lynch, 2007)....
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...The development of crops with greater phosphorus efficiency, defined as the ability to grow and yield in soils with reduced phosphorus availability, would substantially improve food security in developing nations, while enhancing the sustainability of agriculture in rich nations (Lynch, 2007)....
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References
18,276 citations
"Roots of the Second Green Revolutio..." refers background in this paper
...Since a considerable proportion of soil phosphorus may occur in organic forms, plants may increase phosphorus availability in the rhizosphere by secreting phosphohydrolases to mineralise phosphate from organic compounds (Marschner 1995; Abel et al. 2002; Vance et al. 2003)....
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...In strongly acid soils, however, increased nitrogen fixation may be counterproductive, as nitrogen fixation and nitrate leaching accelerate soil acidification and the leaching of calcium, magnesium and potassium, which may be more critical limitations than nitrogen itself (Marschner 1995)....
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...Biological nitrogen fixation in low-fertility environments is often limited by the availability of phosphorus, calcium and aluminum (Marschner 1995; Vance et al. 2000)....
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16,025 citations
3,861 citations
2,429 citations
"Roots of the Second Green Revolutio..." refers background in this paper
...Since a considerable proportion of soil phosphorus may occur in organic forms, plants may increase phosphorus availability in the rhizosphere by secreting phosphohydrolases to mineralise phosphate from organic compounds (Marschner 1995; Abel et al. 2002; Vance et al. 2003)....
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2,376 citations
"Roots of the Second Green Revolutio..." refers background in this paper
...Following the economic paradigm of plant resource allocation (Bloom et al. 1985), ‘cost’ denotes metabolic investment, including the production and maintenance of tissues, often measurable in units of carbon (Lynch and Ho 2005)....
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