The dynamics of microflora and the occurrence of phytotoxic substances in different soils with corn residues and inorganic nitrogen

Weyman-Kaczmarkowa, W.; Wójcik-Wojtkowiak, D.

doi:10.1007/bf00011007

Cited by 7 publications

(2 citation statements)

References 11 publications

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“…At quarter concentration, L. leucocephala , L. sireceus , G. pubescens , E. cycocarpum and G. arborea promoted maize root growth. Concentrated leachates from plant residues are usually inhibitory, but the same leachate can stimulate plant growth at low concentrations ( Weyman‐Kaczmarkowa & Wojcik‐Wojtkowiak 1991). Generally, M. thoningii and P. santalinoides were less inhibitory to maize.…”

Section: Discussionmentioning

confidence: 99%

Effect of Mulch from Selected Multipurpose Trees (MPTs) on Growth, Nitrogen Nutrition and Yield of Maize (Zea mays L.)

Kamara

Akobundu

Sanginga

et al. 2000

J Agronomy Crop Science

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Leaf extracts and mulch from 14 multipurpose trees were used to test their effects on maize germination, growth and yield. Maize germination was significantly reduced by leaf extracts of all species with increasing extract concentration. The most drastic reductions were caused by Gliricidia sepium, Tetrapleura tetraptera, Lonchocarpus sireceus, Senna siamea and Leucaena leucocephala. Terminalia superba, Tetrapleura tetraptera, Pithecelobium dulce, Gliricidia sepium and Senna siamea significantly reduced maize root growth at the lowest extract concentration, while shoot length was most significantly reduced by Gliricidia sepium, Leucaena leucocephala, Alchornea coordifolia, Pithecelobium dulce, Terminalia superba, and Tetrapleura tetraptera at all concentrations. Growth of maize in pots and yield in the field were controlled by nitrogen supply and uptake. Fast‐decomposing leaf material rich in nitrogen promoted growth and yield of maize. Thus Leucaena leucocephala and Gliricidia sepium, both nitrogen‐fixing legumes with high nitrogen contents and fast‐decomposing leaf materials, significantly increased maize growth and yield. This suggests that the negative effects of leaf extracts observed in the laboratory are ecologically irrelevant in the field.

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Section: Discussionmentioning

confidence: 99%

Effect of Mulch from Selected Multipurpose Trees (MPTs) on Growth, Nitrogen Nutrition and Yield of Maize (Zea mays L.)

Kamara

Akobundu

Sanginga

et al. 2000

J Agronomy Crop Science

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“…Actinobacteria are a main actor among bacterioplankton communities, constituting of from 30% to 70% TBN and thus have a significant role in nutrient and energy cycling in these ecosystems [49,55,56]. We noted the largest share of this group in transitional (31.8%) and freshwater (30.1%) lakes.…”

Section: Discussionmentioning

confidence: 67%

Salinity as a Determinant Structuring Microbial Communities in Coastal Lakes

Lew

Glińska-Lewczuk

Burandt

et al. 2022

IJERPH

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The response of bacterioplankton structure to salinity level in coastal lakes (n = 9) along the southern Baltic Sea coastline was studied. In terms of mean salinity levels (0.2–5.2 PSU), the lakes represented freshwater, transitional, and brackish types. Results showed that salinity determines the spatial and seasonal distribution patterns of microorganisms in costal lakes. Increased salinity contributed to a significant decline in total bacterial numbers (TBN). The TBN was lowest in brackish lakes in autumn (4 × 106 cells/mL) and highest in freshwater lakes in summer (7.11 × 106 cells/mL). The groups of Proteobacteria are appropriate bioindicators in any classifications of coastal ecosystems, particularly at low-haline stress. Alpha- and Gamma- subclasses of Proteobacteria are identifiers for brackish habitats, while Betaproteobacteria, due to their intolerance to haline stress, prefer freshwater habitats. Counts of euryhaline Actinobacteria, the dominant group of bacterioplankton (31.8%), decreased significantly with increased salinity. Actinobacteria and Deltaproteobacteria were identifiers of transitional lakes. Cytophaga-Flavobacteria showed affinity with freshwater ecosystems, but this relation was not statistically significant (p > 0.05). The bacteria groups correlated with other physico-chemical parameters of water, such as oxygenation (Actinobacteria) or organic carbon (Betaproteobacteria, Deltaproteobacteria). The impact of hydrological connectivity and salt-water interference on the microbiota structure and biogeochemistry of coastal waters should be considered in the assessment of the ecological status of coastal lakes.

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Microbial Degradation of Plant Materials and Allelochemicals Formation in Different Soils

Weyman-Kaczmarkowa¹,

Wójcik-Wojtkowiak²

1992

Humus, Its Structure and Role in Agriculture and Environment

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The dynamics of microflora and the occurrence of phytotoxic substances in different soils with corn residues and inorganic nitrogen

Abstract: In an incubation experiment the development dynamics of bacterial and fungal communities as well as the level of phytotoxicity were analysed in sand and three soils differing in mechanical structure and amended with corn residues and mineral nitrogen.

Cited by 7 publications

References 11 publications

Effect of Mulch from Selected Multipurpose Trees (MPTs) on Growth, Nitrogen Nutrition and Yield of Maize (Zea mays L.)

Effect of Mulch from Selected Multipurpose Trees (MPTs) on Growth, Nitrogen Nutrition and Yield of Maize (Zea mays L.)

Salinity as a Determinant Structuring Microbial Communities in Coastal Lakes

Microbial Degradation of Plant Materials and Allelochemicals Formation in Different Soils

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