Suppressive effect of composts from residual biomass on Pythium ultimum

Ebrahimi, Ehsan; Werren, Dagmar; Niemsdorff, Peter von Fragstein und

doi:10.1007/s41348-018-0163-7

Cited by 7 publications

(6 citation statements)

References 19 publications

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“…In general, the use of compost maintains and enhances stability and fertility of the agricultural soil (Angin et al 2017;Zhou et al 2016). Composts can have direct effects against disease, as well as stimulation of the competing microorganisms and also development of resistance in plants against diseases (Ebrahimi et al 2018;Carrera et al 2007). Organic matter is also an important source of energy for bacteria, fungi, and earthworms (Montemurro et al 2005;Davis and Wilson 2005).…”

Section: Introductionmentioning

confidence: 99%

A field study on the effect of organic soil conditioners with different placements on dry matter and yield of tomato (Lycopersicon esculentum L.)

Ebrahimi

Asadi

Niemsdorff

2018

Int J Recycl Org Waste Agricult

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Purpose Four different types of composts were assessed in two methods of application for their potential to support organic tomato yield. Methods A 2-year experiment was conducted using four different soil conditioners: cow manure (CM), household compost (HC), spent mushroom compost (SMC), and vermicompost (VC). Three different application rates (10, 20, and 30 t ha −1 for all composts except VC and 3, 6, and 9 t ha −1 for VC) were included as a second factor. Two methods of fertilizer placement (as a row behind the root area and broadcast on the field) were considered as a third factor. Results The yield was influenced by different soil conditioners and placement method in the first year; in the second year, just interactions were significantly different. Treatments with CM showed significantly higher tomato yield in the first year (103 t ha −1) compared to other composts, but in the second year, SMC produced a higher yield (58 t ha −1). The experiment indicated that the treatment with CM in high level with broadcast application had higher dry matter (DM) production (3.1 t ha −1) in 2014, and treatment with CM in low rate and broadcast application had higher DM production (5.8 t ha −1) in 2015. Conclusion Compost broadcast on the plots showed a higher yield production in case of similar rates and compost type. The proper rate of compost application is dependent on the method of compost placement.

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Section: Introductionmentioning

confidence: 99%

A field study on the effect of organic soil conditioners with different placements on dry matter and yield of tomato (Lycopersicon esculentum L.)

Ebrahimi

Asadi

Niemsdorff

2018

Int J Recycl Org Waste Agricult

Self Cite

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“…It is indicated that regular addition of organic materials, particularly the composted ones, increased soil physical fertility, mainly by improving aggregate stability and decreasing soil bulk density (Diacono and Montemurro, 2011). On the other hand, composts can have direct effects against disease, as well as stimulation of the competing microorganisms and also development of resistance in plants against diseases (Ebrahimi et al, 2018).…”

Section: Compostmentioning

confidence: 99%

Effect of Combined Organic and Inorganic Fertilizer on Yield and Yield Components of Food Barley (Hordeum Vulgare L.)

2020

FSQM

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Barley is an important food and beverage crop in the highlands of Ethiopia. Despite many importance of barley and its many useful characteristics, there are several factors affecting its production. Low Soil fertility is one of the major constraints affecting its production. Integrated nutrient management, where both natural and man-made sources of plant nutrients are used, is the best approach to supply adequate and balanced nutrients and increase barley productivity in an efficient and environmentally benign manner, without sacrificing soil productivity of future generations. With this in view, integrated applications of organic and inorganic fertilizer sources on yield and yield components of barley were assessed in this review. By this maintaining soil fertility is one of the main factors affecting the sustainability of barley production. The advantages need to be integrated in order to make optimum use of organic and inorganic fertilizer achieve balanced nutrient management for barley yield. This review study showed that balanced fertilization application using both organic and inorganic fertilizers is important for maintenance of yield and yield components of barley. The basic concept underlying the combined applications of fertilizers is the adjustment of soil fertility and plant nutrient supply to an optimum level for sustaining desired barley productivity through optimization of the benefits from all possible sources of plant nutrients in an integrated manner. Therefore, increased attention should be being paid to developing an integrated soil fertility management that maintains or enhances soil productivity through balanced use of all sources of nutrients, including organic and inorganic fertilizers.

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“…The water extracts of bamboo vermicompost were prepared by mixing the samples with distilled water at a ratio of 2:3 (v/v) followed by active aeration with a small air pump at 20˚C for 24 h according to a previous study [13]…”

Section: Preparation Of Swementioning

confidence: 99%

“…One milliliter of SWE was pipetted onto a PDA plate and expanded over the entire surface with a sterilized glass rod according to a previous study [13] with some modifications. A 5 mm-diameter agar plug with 7-day-old mycelium of R.…”

Section: Effect Of Swe Treatment On Mycelium Growth Rate Of R Solanimentioning

confidence: 99%

Antifungal Activity of Compounds Isolated from Bamboo Vermicompost against <i>Rhizoctonia solani</i> AG1-IB

You¹,

Wakana²,

Ishikawa³

et al. 2019

AiM

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Vermicompost has become a promising alternative to chemical pesticide because of its disease suppression effect during these decades. However, the mechanisms by which vermicompost suppress plant disease are not well-understood. Antifungal compounds, which are released by beneficial organisms in the vermicompost, may play an important role in inhibiting plant pathogens; however, these mechanisms have not been widely examined. In this study, Sterilized Water Extracts of bamboo vermicompost (SWE), using a 0.22-µm cellulose acetate filter, significantly (P < 0.05) inhibited the mycelium growth of Rhizoctonia solani AG1-IB on a Potato Dextrose Agar (PDA) plate. This suggests that antifungal compounds are present in bamboo vermicompost. The ethanol acetate (EtOAc) crude extracts of bamboo vermicompost showing antifungal activity were further separated. Two compounds were isolated from the EtOAc fraction of bamboo vermicompost and characterized as ergosterol peroxide (1) and (22E, 24R)-5α,8α-epidioxyergosta-6,9(11),22-trien-3β-ol (2). Their chemical structures and mass spectra were determined by nuclear magnetic resonance and mass spectrometry analyses. Ergosterol peroxide tested at 150, 300, 600, and 900 μg showed 13%, 22%, 34%, and 53% mycelial growth inhibition against R. solani AG1-IB, respectively. Because EtOAc crude extracts of the initial substrate materials of bamboo vermicompost did not inhibit mycelium growth of R. solani AG1-IB, antifungal compounds in the vermicompost may be released by microbes but not from the original substrates during vermicomposting.

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Suppressive effect of composts from residual biomass on Pythium ultimum

Cited by 7 publications

References 19 publications

A field study on the effect of organic soil conditioners with different placements on dry matter and yield of tomato (Lycopersicon esculentum L.)

A field study on the effect of organic soil conditioners with different placements on dry matter and yield of tomato (Lycopersicon esculentum L.)

Effect of Combined Organic and Inorganic Fertilizer on Yield and Yield Components of Food Barley (Hordeum Vulgare L.)

Antifungal Activity of Compounds Isolated from Bamboo Vermicompost against <i>Rhizoctonia solani</i> AG1-IB

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Suppressive effect of composts from residual biomass on Pythium ultimum

Cited by 7 publications

References 19 publications

A field study on the effect of organic soil conditioners with different placements on dry matter and yield of tomato (Lycopersicon esculentum L.)

A field study on the effect of organic soil conditioners with different placements on dry matter and yield of tomato (Lycopersicon esculentum L.)

Effect of Combined Organic and Inorganic Fertilizer on Yield and Yield Components of Food Barley (Hordeum Vulgare L.)

Antifungal Activity of Compounds Isolated from Bamboo Vermicompost against &lt;i&gt;Rhizoctonia solani&lt;/i&gt; AG1-IB

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Antifungal Activity of Compounds Isolated from Bamboo Vermicompost against <i>Rhizoctonia solani</i> AG1-IB