Vitamin-Humic-Algal Root Biostimulant Increases Yield of Green Bean

Russo, Ricardo O.; Berlyn, Graeme P.

doi:10.21273/hortsci.27.7.847

Cited by 44 publications

(15 citation statements)

References 3 publications

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“…The increase of yield in rocket was particularly observed at the lowest nutrient concentration. These results are in according with the most part of published literature (Russo and Berlyn, 1992;Jana and Paria, 1996). The higher production of rocket plants grown in the floating system with biostimulant may be explained by the increased values of root biomass that probably improved the nutrient use efficiency.…”

Section: Discussionsupporting

confidence: 88%

Use of Biostimulants for Reducing Nutrient Solution Concentration in Floating System

Vernieri¹,

Borghesi²,

Tognoni³

et al. 2006

Acta Hortic.

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The production innovations have been evolving more and more towards organic, sustainable or environmental friendly systems. Contemporarily, the yield and the quality of crops must be assured. The reduction of fertilisers may be obtained by improving the nutrients uptake or their utilisation by the plants. The aim of our work was to verify if the progressive reduction of nutrient solution concentration in the floating system can be compensated by applications of a biostimulant (Actiwave®, Valagro S.p.a.) without compromising the yield and the quality of vegetables. The experiments were performed on rocket (Eruca sativa Mill.) grown in floating system with standard nutrient solution (NS100%), which was compared with nutrient solutions diluted 4 (NS25%) or 10-fold (NS10%) with or without 0.3 ml L-1 Actiwave. At harvest, yield, leaf area, root dry weight, chlorophyll, carotenoids, and leaf nitrate content were determined. Results showed that Actiwave significantly increased the nutrient uptake and nutrient use efficiency in all treatments. In fact, no statistically significant differences were found in yield between NS100% and NS25% plus 0.3 ml mL-1 Actiwave. Moreover, Actiwave reduced the leaf nitrate content and increased chlorophyll and carotenoids in all treatments. Our results indicate that Actiwave lowered the leaf nitrate content through its ability in stimulating nutrient uptake and nitrogen metabolism. The combination of hydroponics and biostimulants appears as a promising environmental friendly strategy for the greenhouse production of highquality vegetables.

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Section: Discussionsupporting

confidence: 88%

Use of Biostimulants for Reducing Nutrient Solution Concentration in Floating System

Vernieri¹,

Borghesi²,

Tognoni³

et al. 2006

Acta Hortic.

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“…Humic acid effectively improves soil fertility and crop production especially in poor soils and alkalinecalcareous soils (Rajaei, 2010). Our results is supported by the finding of Russo and Berlyn (1992) and Hao and Papadopoulos (2003) who reported that HA sprays increased fruit yield and reproductive growth of tomato and increasing of some elements in plant tissues. Foliar application of HA promoted growth and increased yield by 10.5% in processing tomatoes over untreated controls (Brownell et al, 1987).…”

Section: Absorption In Grain Treatmentssupporting

confidence: 91%

Untitled

Azizzadeh

Naeini

Zeinali

et al. 2016

Int. J. Adv. Biol. Biomed. Res.

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Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding CASRP΄s archiving and manuscript policies encouraged to visit: http://www.casrp.co.uk/journals AbstractThis study was carried out in order to evaluate the changes of Nitrogen, phosphor and potassium uptake by wheat and remaining of them in soil under foliar application of Leonardite and foliar application of N and K. The experiment was conducted in Gorgan University of Agricultural Sciences and Natural Resources during 2013-2014. The experiment was laid out a using split-plot arrangement based on complete block design with four replications. Treatments were nitrogen and nitrogen+potassium fertilizers in main plots and foliar application of nitrogen, potassium, humic power and mega humat with control in subplots. The results showed that, the effect of chemical fertilizers was significant on soil K content in harvesting stage, plant P and K content at heading beginning stage and grain N, P and K content at maturity. The effect of foliar application of Leonardite, Urea and potassium was significant on P and K content at heading beginning and harvesting stages, plant N, P and K content at heading beginning stage and grain N, P and K content at maturity. Interaction effect of chemical fertilizers and foliar application of Leonardite, Urea and potassium was significant on plant K content. Mean comparison results showed that, foliar application of Urea increased soil, plant and grain nitrogen content rather than other treatments. However, application of humic power and megahumat increased P uptake by wheat and accumulate in * Corresponding author: M.Sc. Student in chemistry and soil fertility, department of soil Sciences, Gorgan University of agriculture sciences and Natural resources Gorgan, Iran. 203 plant and grain tissues. Also results showed that integrated application of nitrogen+potassium and foliar application of potassium increased wheat K content. In final these results suggested that application of chemical fertilizers and foliar application of Leonardite, Urea and potassium had more effective on NPK supplying for wheat and uptake of these nutrients by wheat. Also improvement in soil properties and fertility status was recorded when chemical fertilizers were integrated with Leonardite, Urea and potassium as foliar application.

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“…Kugrens noted that sometimes potent inhibition occurred when the extracts from M. aeruginosa and A. flos-aquae were mixed together but when taken individually, cotyledon fresh weight actually increased. Promotion of the growth of higher plants by extracts from cyanophytes and algae has been reported by other investigators, for example, Bentley-Mowat and Reid [1968], Gupta and Shukla [1968], Gupta and Gupta [1973], and Russo and Berlyn [1992].…”

Section: Antibiotic Activity Of Algaementioning

confidence: 53%

The potential for using cyanobacteria (blue-green algae) and algae in the biological control of plant pathogenic bacteria and fungi

Kulik

1995

Eur J Plant Pathol

191

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Cyanobacteria (blue-green algae) and eukaryote algae occur in freshwater, marine, and terrestrial (soil) habitats. In fact, these microorganisms comprise most of the world's biomass. Although the cyanobacteria are mostly photoautotrophic, some are facultative heterotrophs, capable of growing on certain substrates in darkness. Also, some are non-phototrophic and hence, are obligate heterotrophs. A number of cyanobacteria and eukaryote algae, particularly macroalgae, produce various, biologically active compounds. These include antibiotics which in laboratory tests inhibited bacteria and fungi that incite diseases of humans. In addition, the following fungi which are of interest to plant pathologists, were inhibited in vitro by substances produced by various cyanobacteria: The saprophytes Chaetomium globosum, Cunninghamella blakesleeana, and Aspergillus oryzae, and the plant pathogens Rhizoctonia solani and Sclerotinia sclerotiorum. Extracts from seaweeds (macroalgae) sprayed on plants have been reported to reduce the incidence of Botrytis cinerea (gray mold) on strawberries, Erysiphe polygoni (powdery mildew) on turnips, and damping-off of tomato seedlings. Because many cyanobacteria and algae produce a large number of antibacterial and antifungal materials, are almost never a threat to the environment, and many can be grown in quantity in mass culture, they are suitable candidates for exploitation as biocontrol agents of plant pathogenic bacteria and fungi. Much additional work remains to be done however, to thoroughly evaluate cyanobacteria and algae and their products for this role.

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Vitamin-Humic-Algal Root Biostimulant Increases Yield of Green Bean

Cited by 44 publications

References 3 publications

Use of Biostimulants for Reducing Nutrient Solution Concentration in Floating System

Use of Biostimulants for Reducing Nutrient Solution Concentration in Floating System

Untitled

The potential for using cyanobacteria (blue-green algae) and algae in the biological control of plant pathogenic bacteria and fungi

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