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13 Result(s)

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  1. No Access

    Article

    Soil microbial C and N turnover under Cupressus lusitanica and natural forests in southern Ethiopia assessed by decomposition of 13C- and 15 N-labelled litter under field conditions

    Natural forests in Ethiopia are frequently replaced by Cupressus lusitanica plantations, but little is known about consequences of this land use change for soil C and N dynamics. The objectives of the study were:...

    Marianne Benesch, Bruno Glaser, Michaela Dippold, Wolfgang Zech in Plant and Soil (2015)

  2. No Access

    Article

    Long term effects of manure, charcoal and mineral fertilization on crop production and fertility on a highly weathered Central Amazonian upland soil

    Application of organic fertilizers and charcoal increase nutrient stocks in the rooting zone of crops, reduce nutrient leaching and thus improve crop production on acid and highly weathered tropical soils. In ...

    Christoph Steiner, Wenceslau G. Teixeira, Johannes Lehmann, Thomas Nehls… in Plant and Soil (2007)

  3. No Access

    Article

    Nutrient availability and leaching in an archaeological Anthrosol and a Ferralsol of the Central Amazon basin: fertilizer, manure and charcoal amendments

    Soil fertility and leaching losses of nutrients were compared between a Fimic Anthrosol and a Xanthic Ferralsol from Central Amazônia. The Anthrosol was a relict soil from pre-Columbian settlements with high o...

    Johannes Lehmann, Jose Pereira da Silva Jr., Christoph Steiner… in Plant and Soil (2003)

  4. No Access

    Article

    The effect of single tree species on soil microbial activities related to C and N cycling in the Siberian artificial afforestation experiment

    The effects of grassland conversion to forest vegetation and of individual tree species on microbial activity in Siberia are largely unstudied. Here, we examined the effects of the six most commonly dominant t...

    Oleg V. Menyailo, Bruce A. Hungate, Wolfgang Zech in Plant and Soil (2002)

  5. No Access

    Article

    Tree species mediated soil chemical changes in a Siberian artificial afforestation experiment

    Natural and human-induced changes in the composition of boreal forests will likely alter soil properties, but predicting these effects requires a better understanding of how individual forest species alter soi...

    Oleg V. Menyailo, Bruce A. Hungate, Wolfgang Zech in Plant and Soil (2002)

  6. No Access

    Article

    Effect of five tree crops and a cover crop in multi-strata agroforestry at two fertilization levels on soil fertility and soil solution chemistry in central Amazonia

    The spatio-temporal patterns of soil fertility and soil solution chemistry in a multi-strata agroforestry system with perennial crops were analysed as indicators for the effects of crop species and management ...

    Götz Schroth, Wenceslau Geraldes Teixeira, Rosangela Seixas… in Plant and Soil (2000)

  7. No Access

    Article

    Nutrient interactions of alley cropped Sorghum bicolor and Acacia saligna in a runoff irrigation system in Northern Kenya

    In a runoff irrigation system in Northern Kenya, we studied the nutrient interactions of sole cropped and alley cropped Sorghum bicolor (L.) Moench and Acacia saligna (Labill.) H.L. Wendl. The trees were prune...

    Johannes Lehmann, Doris Weigl, Inka Peter, Klaus Droppelmann… in Plant and Soil (1999)

  8. No Access

    Article

    Fine root turnover of irrigated hedgerow intercrop** in Northern Kenya

    Fine root turnover (<2 mm) was determined from repeated measurements of root distribution up to 120 cm soil depth by core sampling in four month intervals. Sole cropped Sorghum bicolor and Acacia saligna were ...

    Johannes Lehmann, Wolfgang Zech in Plant and Soil (1998)

  9. No Access

    Article

    Seasonal dynamics of nutrients in leaves and xylem sap of coffee plants as related to different soil compartments

    The northwestern province of Costa Rica is a marginal coffee growing area. At the onset of the rainy season low redox potentials probably induce the mobilization of soil Mn resulting in enhanced plant uptake o...

    Maya Bundt, Sigrid Kretzschmar, Wolfgang Zech, Wolfgang Wilcke in Plant and Soil (1997)

  10. No Access

    Article

    Root length dynamics in agroforestry with Gliricidia sepium as compared to sole crop** in the semi-deciduous rainforest zone of West Africa

    Tree root systems may improve soil fertility through carbon inputs, uptake of leachable nutrients and maintenance of soil biomass, but can at the same time reduce crop yields by competition for water and nutri...

    Götz Schroth, Wolfgang Zech in Plant and Soil (1995)

  11. No Access

    Article

    Mulch decomposition under agroforestry conditions in a sub-humid tropical savanna processes and influence of perennial plants

    For the effective use of mulch materials in tropical agriculture and agroforestry knowledge of the speed of decomposition and nutrient release is of primary importance. The transfer of these informations from ...

    Götz Schroth, Wolfgang Zech, Günter Heimann in Plant and Soil (1992)

  12. No Access

    Article

    Foliar nutrient levels of broad-leaved tropical trees: A tabular review

    Foliar nutrient levels (N, P, S, K, Ca, Mg, Al, Fe, Mn, Zn, Cu, Mo, B), of about 40 tropical and subtropical broad-leaved trees, are listed and classified as deficient, low, intermediate, high, and toxic in ea...

    Pay Drechsel, Wolfgang Zech in Plant and Soil (1991)

  13. No Access

    Article

    Site conditions and nutrient status ofCordeauxia edulis (Caesalpiniaceae) in its natural habitat in Central Somalia

    Cordeauxia edulis, the yeheb (yicib, ye-eb), has attracted much interest as a potential multi-purpose shrub well adapted to (semi)arid conditions. Since there exist only limited information and a...

    Pay Drechsel, Wolfgang Zech in Economic Botany (1988)