Enhancing soil health and productivity of Lycopersicon esculentum Mill. using Sargassum johnstonii Setchell &amp; Gardner as a soil conditioner and fertilizer

Kumari, Reeta; Bhatnagar, A. K.

doi:10.1007/s10811-012-9933-y

Cited by 42 publications

(10 citation statements)

References 27 publications

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“…The total NPK of Sargassum although generally lower compared to conventional fertilizers, seems to be assimilated by plants more effectively as slow release nutrients. In addition, as previously demonstrated (Kumari et al, 2013;Roberts et al, 2015), organic fertilizers seem to increase the organic matter content, the soil structure and moisture storage capabilities of soils. Finally, it is recommended that the excess salt in Sargassum be removed before use for agricultural purposes in order to avoid soil salinization and groundwater pollution.…”

Section: How Can We Turn This Problem Into Opportunities?supporting

confidence: 64%

<i>Sargassum</i> Invasion of Coastal Environments: A Growing Concern

Louime¹,

Fortune²,

Gervais³

2017

American Journal of Environmental Sciences

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Floating tropical brown macroalgae, commonly called Sargassum, besieging the Caribbean coastlines have long been a regular occurrence in the region, especially during the fall and winter months. These washed-up seaweeds are considered by scientists as an important part of the coastal ecosystem, as they serve as habitat and nurseries for numerous marine species. However, in recent years, the region has seen an explosion in Sargassum densities with unusually high extent and frequency. This natural catastrophe, as some label the 2013 invasion, has even crossed the Atlantic Ocean to reach the west coast of Africa. Some scientists have linked this disaster with global climate change and the concomitant higher than normal temperatures. Now the question is being raised as to whether the latest seen invasion of Sargassum represents a seasonal anomaly or a regime shift in ocean currents and climate. Therefore, it is urgent for the scientific community to understand the causes of these recent occurrences and provide potential remedial solutions, as these invasions could have significant negative impacts on marine ecosystems, even disrupting entire economic activities of local communities.

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Section: How Can We Turn This Problem Into Opportunities?supporting

confidence: 64%

<i>Sargassum</i> Invasion of Coastal Environments: A Growing Concern

Louime¹,

Fortune²,

Gervais³

2017

American Journal of Environmental Sciences

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“…Sargasso samples from the Mexican Caribbean coast contained essential macroelements for plants, like Ca (23,723-136,146 ppm DW), K (1,990-46,002 ppm DW), Mg (<2,915-13,662 ppm DW), P (228-401 ppm DW) and S (9,462-24,773 ppm DW), in addition to various micro-elements. Similar properties have been found in other Sargassum spp., making them adequate as complementary fertilizers as they enhance growth, seed germination and photosynthesis of crop plants on mineral-depleted soils (Sathya et al, 2010;Kumari, Kaur & Bhatnagar, 2013;El-Din, 2015). Some micro-elements found in sargasso from Mexico, such as Cu, Mn, Mo and Zn, are micronutrients in low concentrations, but they are potentially toxic when present in high concentrations.…”

Section: Discussionmentioning

confidence: 99%

Element concentrations in pelagicSargassumalong the Mexican Caribbean coast in 2018-2019

Rodríguez-Martínez

Roy

Torrescano-Valle

et al. 2020

PeerJ

105

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The massive influx of pelagic Sargassum spp. (sargasso) into the Mexican Caribbean Sea has caused major deterioration of the coastal environment and has affected the tourism industry as well as livelihoods since 2015. Species of Sargassum have high capacity to absorb metals; thus, leachates of sargasso may contribute to contamination by potentially toxic metals when they drain into the sea and into the groundwater when dumped in inadequate land deposits. Valorization of sargasso would contribute to sustainable management; therefore, knowledge on potentially toxic metal content is necessary to define possible uses of the algae. We present concentrations of 28 elements measured using a non-destructive X-ray fluorescence analyzer (XRF) in 63 samples of sargasso collected between August 2018 and June 2019 from eight localities along ∼370 km long coastline of the Mexican Caribbean Sea. The sargasso tissues contained detectable concentrations of Al, As, Ca, Cl, Cu, Fe, K, Mg, Mn, Mo, P, Pb, Rb, S, Si, Sr, Th, U, V, and Zn. The element concentration in sargasso varied on spatial and temporal scales, which likely depended on the previous trajectory of the pelagic masses, and whether these had (or had not) passed through contaminated areas. Total arsenic concentration varied between 24–172 ppm DW, exceeding the maximum limit for seaweed intended as animal fooder (40 ppm DW) in 86% of the samples. For valorization, we recommend analyses of metal contents as a mandatory practice or avoiding uses for nutritional purposes. The high arsenic content is also of concern for environmental contamination of the sea and aquifer.

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“…also grow well on FA without showing heavy metal-related toxicity symptom. Kumari et al [37] reported that the fern T. dentata is also suitable for phytoremediation and can be used efficiently to revegetate FA landfills. Some woody tree species like Leucaena leucocephala, Dendrocalamus [38].…”

Section: Production Of a Phytocovermentioning

confidence: 99%

Phytoreclamation of abandoned acid mine drainage site after treatment with fly ash

Roy

2021

Phytorestoration of Abandoned Mining and Oil Drilling Sites

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Enhancing soil health and productivity of Lycopersicon esculentum Mill. using Sargassum johnstonii Setchell & Gardner as a soil conditioner and fertilizer

Cited by 42 publications

References 27 publications

<i>Sargassum</i> Invasion of Coastal Environments: A Growing Concern

<i>Sargassum</i> Invasion of Coastal Environments: A Growing Concern

Element concentrations in pelagicSargassumalong the Mexican Caribbean coast in 2018-2019

Phytoreclamation of abandoned acid mine drainage site after treatment with fly ash

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