Agricultural importance of algae

Abdel-Raouf, Neveen; Al-Homaidan, Ali A.; Ibraheem, Ibraheem Borie Mohammad

doi:10.5897/ajb11.3983

Cited by 101 publications

(41 citation statements)

References 69 publications

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“…Some algae strains favour high biomass production and other high lipid concentration (Yoo et al 2010). Biomass of microalgae in agriculture can be used also as bio fertilizer and as soil conditioner (Faheed & Fattah 2008;Mata et al 2010;Coppens et al 2015;Uysal et al 2015;Abdel-Raouf et al 2016;Renuka et al 2016). Additionally, the role of blue-green algae in supplying N for rice growing and for improving physico-chemical properties of soil is well documented (Metting 1996;Mandal et al 1999;Song et al 2005).…”

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confidence: 99%

Effects of manure enriched with algae Chlorella vulgaris on soil chemical properties

Gougoulias¹,

Papapolymerou²,

Karayannis³

et al. 2018

Soil & Water Res.

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Gougoulias N., Papapolymerou G., Karayannis V., Spiliotis X., Chouliaras N. (2018) The effect of the algal species Chlorella vulgaris at six different ratios (0, 1, 2, 3, 4, 5 g) of air dried algae biomass, mixed with 10.18 g of sheep manure, added to 50 g of soil, and incubated for a period of 15 weeks was studied in a laboratory in order to detect the role of adding small amounts of admixed algal biomass to soil in biodegradation of soil organic carbon. The obtained data showed that mineralization of soil organic carbon increased by 16.2-35.9% at all rates of algae addition compared to the control, while the highest increase was observed at the highest rates of algae addition. There was a 40-50% increase in the available form of potassium, while the highest increase was also observed at the highest rates of algae addition. The four times higher rates of added algae increased the corresponding content of nitrate nitrogen by 20-30%, while ammonium nitrogen contents decreased by 9.5-35.7% for all amounts of added algae in comparison with the control. The available forms of copper, manganese, and zinc were also increased for all amounts of added algae by 56.8-61.9%, 55.8-67.3%, and 34.1-40.6%, respectively. On the contrary, the addition of algae did not indicate significant differences among treatments as concerns organic or available phosphorus contents. The results proved the effect of the algae Chlorella vulgaris as an accelerator agent in biodegradation of soil organic matter, without any significant negative impact on soil chemical properties.

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confidence: 99%

Effects of manure enriched with algae Chlorella vulgaris on soil chemical properties

Gougoulias¹,

Papapolymerou²,

Karayannis³

et al. 2018

Soil & Water Res.

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“…Cyanobacteria solubilize and mobilize the insoluble organic phosphates and improve the availability of phosphorus to the crop (Dorich et al, 1985;Cameron and Julian, 1988). The humus content generated after death and decay of cyanobacteria creates strong reducing condition in soil which improve the soil structure and fertility (Abdel-Raouf et al, 2012). Different cyanobacterial strains are known to produce plant growth hormones and siderophores, and therefore, cyanobacteria can affect the development and productivity of crops (Rodriguez et al, 2006;Rastogi and Sinha, 2009).…”

Section: Cyanobacteria As Biofertilizersmentioning

confidence: 99%

Cyanobacterial Farming for Environment Friendly Sustainable Agriculture Practices: Innovations and Perspectives

Pathak

Rajneesh

Maurya

et al. 2018

Front. Environ. Sci.

151

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Sustainable supply of food and energy without posing any threat to environment is the current demand of our society in view of continuous increase in global human population and depletion of natural resources of energy. Cyanobacteria have recently emerged as potential candidates who can fulfill abovementioned needs due to their ability to efficiently harvest solar energy and convert it into biomass by simple utilization of CO 2 , water and nutrients. During conversion of radiant energy into chemical energy, these biological systems produce oxygen as a by-product. Cyanobacterial biomass can be used for the production of food, energy, biofertilizers, secondary metabolites of nutritional, cosmetics, and medicinal importance. Therefore, cyanobacterial farming is proposed as environment friendly sustainable agricultural practice which can produce biomass of very high value. Additionally, cyanobacterial farming helps in decreasing the level of greenhouse gas, i.e., CO 2 , and it can be also used for removing various contaminants from wastewater and soil. However, utilization of cyanobacteria for resolving the abovementioned problems is subjected to economic viability. In this review, we provide details on different aspects of cyanobacterial system that can help in developing sustainable agricultural practices. We also describe different large-scale cultivation systems for cyanobacterial farming and discuss their merits and demerits in terms of economic profitability.

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“…During the last decades, the algal bio-fertilizers technology has been proven to be a highly applicable and a key player instead of inorganic chemical fertilizers (Maqubela et al, 2009). Furthermore, this technique is commonly avoiding soil pollution by adding chemical fertilizers affecting human health (Abdel-Raouf et al, 2012), improves the nutrients-poor soils specifically those important for seedlings germination and crops productivity (Gheda & Ahmed, 2015) and they continuously fix atmospheric nitrogen into the soil even after crop harvest (Sahu et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Soil Algae of El-Farafra Oasis (The Western Desert, Egypt), and N2-fixation Efficiency of Five Heterocytous Cyanophytes

2017

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Agricultural importance of algae

Cited by 101 publications

References 69 publications

Effects of manure enriched with algae Chlorella vulgaris on soil chemical properties

Effects of manure enriched with algae Chlorella vulgaris on soil chemical properties

Cyanobacterial Farming for Environment Friendly Sustainable Agriculture Practices: Innovations and Perspectives

Soil Algae of El-Farafra Oasis (The Western Desert, Egypt), and N2-fixation Efficiency of Five Heterocytous Cyanophytes

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