Microbial diversity, nitrogen loss and grass production after addition of Effective Micro-organisms® (EM) to slurry manure

Vliet, P.C.J. van; Bloem, J.; Goede, R.G.M. de

doi:10.1016/j.apsoil.2005.07.001

Cited by 53 publications

(41 citation statements)

References 14 publications

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“…또한, EM을 토양이나 식물 잎에 분사함으로 써 광합성미생물과 질소고정미생물의 수가 증가한다고 하는 데 Ruinen은 식물 잎 표면에서 질소고정 박테리아를 찾았 고 [10], Pati와 Gupta는 식물 잎 표면의 질소고정 박테리아 가 작물 수확량을 높인다고 보고하였다 [11][12][13]. 그러나 작물 수확량과 식물에 있어서 EM의 적용은종종 모순된 효과가 보고되거나 영향이 없는 것 또한 보고되고 있다 [6,[14][15][16][17][18][19][20]. 환경 보전형 농업으로서 EM을 이용한 채소류 및 과실류의 재배와 일반 재배경우를 비교할 때 ( …”

Section: Type Of Microorganisms Basic Species Workunclassified

Current Status of EM (Effective Microorganisms) Utilization

문윤희¹,

이광배²,

김영준³

et al. 2011

KSBB Journal

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1) Effective Microorganisms (EM), a fermented medium developed by Professor Higa at the University of the Ryukyus, is a mixed culture containing dozens of microorganisms which are beneficial to nature including people, animals, plants and many microbial species in environment. EM is known to contain more than 80 kinds of anaerobic or aerobic microbes including photosynthetic bacteria, lactic acid bacteria, yeast, actinomycetes, fungi and so on, with yeast, lactic acid bacteria and photosynthetic bacteria as the main species of EM. Antioxidant effect generated by the concert of complex coexistence and coprosperity among these microbes is considered to be the main source of EM benefits. Currently, EM is earning an increasing attention with applications in agriculture, forestry, animal husbandry, fisheries, environment and medicine among others. At the same time, however, a quantitative interpretation of EM system based on a mixed culture model needs efforts from biochemical engineers for efficient production and further promotion of EM. In this paper, we describe the functions of major microbes in EM and current researches and applications of EM in agriculture, forestry, animal husbandry, fisheries, environment and medicine.

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Section: Type Of Microorganisms Basic Species Workunclassified

Current Status of EM (Effective Microorganisms) Utilization

문윤희¹,

이광배²,

김영준³

et al. 2011

KSBB Journal

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“…One of the ways to improve soil properties is application of microbial preparations. However, despite numerous investigations, the results of the effect of these preparations on the quantity and quality of yield and properties of soils are not unanimous (Stewart and Daly 1999, Xu 2001, Priyadi et al 2005, van Vliet et al 2006.…”

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confidence: 99%

Effect of nitrogen fertilization and microbial preparations on potato yielding

Kołodziejczyk

2014

PLANT SOIL ENVIRON

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The effect of nitrogen fertilization and microbial preparations on yielding and development of potato tuber yield components were assessed in field experiments conducted under soil conditions of Luvic Chernozem. The factors of the experiment were nitrogen fertilization levels: 0, 60, 120 and 180 kg N/ha and the following preparations: BactoFil B10, effective microorganisms and UG max soil fertilizer. Nitrogen fertilization caused a significant increase in marketable yield of potato tubers. Yield increments on individual fertilizer treatments ranged from 66% to 140%. An evident effect of this factor was also visible regarding the yield components values. Increase in the number of main stems per 1 m 2 under the influence of growing nitrogen doses occurred from the fertilization level 120 kg N/ha, whereas the number of tubers per 1 stem increased only to the level of 60 kg N/ha. Each nitrogen dose applied within the range to 180 kg N/ha caused a marked increase in an average tuber weight. Conducted investigations demonstrated an unfavourable effect of microbial preparations on the marketable crop yield of tubers and formation of yield components. On the objects where microbial preparations were applied, the marketable yield was lower by 1.5 to 2.3 t/ha than in the control. Analysis of linear regression revealed occurrence of significant dependencies between the total tuber yield and the values of individual yield components. The relationships were the most visible for an average tuber weight formation as evidenced by the value of coefficient of determination (R 2 = 0.983).

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“…Although it has been asserted that EM-cocktails contain about 80 species of micro-organisms, such as photosynthetic bacteria, lactic acid bacteria, actinomycetes, yeasts and fermenting fungi (Higa, 1998), such claims could not be confirmed by independent research (Van Egeraat, 1998;Van Vliet et al, 2006). The addition of EM to slurry manure had no effects on the composition of the bacterial community present in the slurry manure; EM had no effect on the chemical composition of the manure and no effect on grass production (Van Vliet et al, 2006).…”

Section: Discussionmentioning

confidence: 97%

“…The addition of EM to slurry manure had no effects on the composition of the bacterial community present in the slurry manure; EM had no effect on the chemical composition of the manure and no effect on grass production (Van Vliet et al, 2006). In experiments on agar plates, Van Egeraat (1998) found no effect of micro-organisms in EM-1 Ò on the growth of eight test bacteria (species belonging to the genera Azotobacter, Rhizobium, Pseudomonas, Bacillus, Streptomyces, Mycobacterium, Serratia and Escherichia), one yeast (Saccharomyces) and one fungus (Penicillium).…”

Section: Discussionmentioning

confidence: 99%

Cyanobacteria blooms cannot be controlled by Effective Microorganisms (EM®) from mud- or Bokashi-balls

2010

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In controlled experiments, the ability of ''Effective Microorganisms (EM, in the form of mudballs or Bokashi-balls)'' was tested for clearing waters from cyanobacteria. We found suspensions of EM-mudballs up to 1 g l -1 to be ineffective in reducing cyanobacterial growth. In all controls and EM-mudball treatments up to 1 g l -1 the cyanobacterial chlorophyll-a (Chl-a) concentrations increased within 4 weeks from &120 to 325-435 lg l -1 . When pieces of EM-mudballs (42.5 g) were added to 25-l lake water with cyanobacteria, no decrease of cyanobacteria as compared to untreated controls was observed. In contrast, after 4 weeks cyanobacterial Chl-a concentrations were significantly higher in EM-mudball treatments (52 lg l -1 ) than in controls (20 lg l -1 ). Only when suspensions with extremely high EM-mudball concentrations were applied (i.e., 5 and 10 g l -1 ), exceeding the recommended concentrations by orders of magnitude, cyanobacterial growth was inhibited and a bloom forming concentration was reduced strongly. In these high dosing treatments, the oxygen concentration dropped initially to very low levels of 1.8 g l -1 . This was most probably through forcing strong light limitation on the cyanobacteria caused by the high amount of clay and subsequent high turbidity of the water. Hence, this study yields no support for the hypothesis that EM is effective in preventing cyanobacterial proliferation or in terminating blooms. We consider EM products to be ineffective because they neither permanently bind nor remove phosphorus from eutroficated systems, they have no inhibiting effect on cyanobacteria, and they could even be an extra source of nutrients.

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Microbial diversity, nitrogen loss and grass production after addition of Effective Micro-organisms® (EM) to slurry manure

Cited by 53 publications

References 14 publications

Current Status of EM (Effective Microorganisms) Utilization

Current Status of EM (Effective Microorganisms) Utilization

Effect of nitrogen fertilization and microbial preparations on potato yielding

Cyanobacteria blooms cannot be controlled by Effective Microorganisms (EM®) from mud- or Bokashi-balls

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