Paul L. Vlek: search on Z-Library

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1

Assessing sediment inputs to small reservoirs in Upper East Region, Ghana

Afua Adwubi, Bright Kofi Amegashie, Wilson Agyei Agyare, Lulseged Tamene, Samuel Nii Odai, Charles Quansah, Paul Vlek

Journal:

Lakes & Reservoirs: Research & Management

Year:

2009

Language:

english

File:

PDF, 218 KB

english, 2009

2

Catchment-scale spatial variability of soil properties and implications on site-specific soil management in northern Ethiopia

Gebreyesus Brhane Tesfahunegn, Lulseged Tamene, Paul L.G. Vlek

Journal:

Soil and Tillage Research

Year:

2011

Language:

english

File:

PDF, 2.39 MB

english, 2011

3

Improved phosphorus efficiency of three new wheat genotypes from CIMMYT in comparison with an older Mexican variety

Egle, Komi, Manske, Günther, Römer, Wilhelm, Vlek, Paul L. G.

Journal:

Journal of Plant Nutrition and Soil Science

Year:

1999

File:

PDF, 148 KB

1999

4

Estimating sediment yield risk of reservoirs in northern Ethiopia using expert knowledge and semi-quantitative approaches

Lulseged Tamene, Assefa Abegaz, Ermias Aynekulu, Kifle Woldearegay, Paul L. G. Vlek

Journal:

Lakes & Reservoirs: Research & Management

Year:

2011

Language:

english

File:

PDF, 364 KB

english, 2011

5

Land Use and Soil Resources Volume 7 || Soil Quality and Methods for its Assessment

Braimoh, Ademola K., Vlek, Paul L. G.

Year:

2008

Language:

english

File:

PDF, 11.16 MB

english, 2008

6

Modeling nutrient and water productivity of sorghum in smallholder farming systems in a semi-arid region of Ghana

Dilys S. MacCarthy, Paul L.G. Vlek, A. Bationo, R. Tabo, M. Fosu

Journal:

Field Crops Research

Year:

2010

Language:

english

File:

PDF, 701 KB

english, 2010

7

Land-Cover Change Trajectories in Northern Ghana

Ademola K. Braimoh, Paul L. G. Vlek

Journal:

Environmental Management

Year:

2005

Language:

english

File:

PDF, 290 KB

english, 2005

8

Organic material decomposition and nutrient dynamics in a mulch system enriched with leguminous trees in the Amazon

Cattanio, José Henrique, Kuehne, Ronald, Vlek, Paul L.G.

Journal:

Revista Brasileira de Ciência do Solo

Year:

2008

File:

PDF, 1.58 MB

2008

9

Temporal variability of selected soil microbiological and biochemical indicators under different soil quality conditions in south-western Nigeria

Barbara Wick, Ronald F. Kühne, Konrad Vielhauer, Paul L. Vlek

Journal:

Biology and Fertility of Soils

Year:

2002

Language:

english

File:

PDF, 324 KB

english, 2002

10

Land Evaluation for Maize Based on Fuzzy Set and Interpolation

Ademola K. Braimoh, Paul L. G. Vlek, Alfred Stein

Journal:

Environmental Management

Year:

2004

Language:

english

File:

PDF, 453 KB

english, 2004

11

Mechanism of Calcium and Phosphate Release from Hydroxy-Apatite by Mycorrhizal Hyphae

Ness, Ricardo L.Lange, Vlek, Paul L.G.

Journal:

Soil Science Society of America Journal

Year:

2000

Language:

english

File:

PDF, 272 KB

english, 2000

12

Assessment of accumulation rates in small reservoirs by core analysis, 137 Cs measurements and bathymetric mapping in Burkina Faso

Schmengler, Almut C., Vlek, Paul L.G.

Journal:

Earth Surface Processes and Landforms

Year:

2015

Language:

english

File:

PDF, 2.32 MB

english, 2015

13

Differential use and benefits of Velvet bean (Mucuna pruriens var. utilis) and N fertilizers in maize production in contrasting agro-ecological zones of E. Uganda

Crammer K. Kaizzi, Henry Ssali, Paul L.G. Vlek

Journal:

Agricultural Systems

Year:

2006

Language:

english

File:

PDF, 161 KB

english, 2006

14

Socio-economic and biophysical determinants of land degradation in Vietnam: An integrated causal analysis at the national level

Vu, Quyet Manh, Le, Quang Bao, Frossard, Emmanuel, Vlek, Paul L.G.

Journal:

Land Use Policy

Year:

2014

Language:

english

File:

PDF, 1.55 MB

english, 2014

15

Tropical Agriculture in Transition — Opportunities for Mitigating Greenhouse Gas Emissions? || Energy Use and CO2 Production in Tropical Agriculture and Means and Strategies for Reduction or Mitigation

Wassmann, Reiner, Vlek, Paul L. G.

Year:

2004

Language:

english

File:

PDF, 2.23 MB

english, 2004

16

Restructuring land allocation, water use and agricultural value chains (Technologies, policies and practices for the lower Amudarya region) || Titelei

Khamzina, Asia, Lamers, John P. A., Rudenko, Inna, Vlek, Paul

Year:

2015

File:

PDF, 108 KB

2015

17

Land-Use Dynamic Simulator (LUDAS): A multi-agent system model for simulating spatio-temporal dynamics of coupled human–landscape system. I. Structure and theoretical specification

Quang Bao Le, Soo Jin Park, Paul L.G. Vlek, Armin B. Cremers

Journal:

Ecological Informatics

Year:

2008

Language:

english

File:

PDF, 2.85 MB

english, 2008

18

Micronutrients in Tropical Food Crop Production || Sources and production of micronutrient fertilizers

Vlek, Paul L. G.

Year:

1985

Language:

english

File:

PDF, 2.42 MB

english, 1985

19

Influence of urea on biological N2fixation and N transfer fromAzollaintercropped with rice

Madiama Cissé, Paul L. G. Vlek

Journal:

Year:

2003

Language:

english

File:

PDF, 172 KB

english, 2003

20

Farmer adoption of plot- and farm-level natural resource management practices: Between rhetoric and reality

Stevenson, James, Vanlauwe, Bernard, Macours, Karen, Johnson, Nancy, Krishnan, Lakshmi, Place, Frank, Spielman, David, Hughes, Karl, Vlek, Paul

Journal:

Global Food Security

Year:

2019

Language:

english

File:

PDF, 184 KB

english, 2019

21

The potential of Velvet bean (Mucuna pruriens) and N fertilizers in maize production on contrasting soils and agro-ecological zones of East Uganda

Crammer K. Kaizzi, Henry Ssali, Paul L.G. Vlek

Journal:

Nutrient Cycling in Agroecosystems

Year:

2004

Language:

english

File:

PDF, 130 KB

english, 2004

22

Potential of nine multipurpose tree species to reduce saline groundwater tables in the lower Amu Darya River region of Uzbekistan

Asia Khamzina, John P. A. Lamers, Christopher Martius, Martin Worbes, Paul L. G. Vlek

Journal:

Agroforestry Systems

Year:

2006

Language:

english

File:

PDF, 317 KB

english, 2006

23

A Landscape Planning and Management Tool for Land and Water Resources Management: An Example Application in Northern Ethiopia

Tamene, Lulseged, Le, Quang Bao, Vlek, Paul L. G.

Journal:

Water Resources Management

Year:

2014

Language:

english

File:

PDF, 913 KB

english, 2014

24

Performance of exclosure in restoring soil fertility: A case of Gubalafto district in North Wello Zone, northern highlands of Ethiopia

Shimeles Damene, Lulseged Tamene, Paul L.G. Vlek

Journal:

Year:

2013

Language:

english

File:

PDF, 1.34 MB

english, 2013

25

Micronutrients in Tropical Food Crop Production || Micronutrient problems in tropical Asia

Vlek, Paul L. G.

Year:

1985

Language:

english

File:

PDF, 2.84 MB

english, 1985

26

Modeling the impacts of contrasting nutrient and residue management practices on grain yield of sorghum (Sorghum bicolor (L.) Moench) in a semi-arid region of Ghana using APSIM

Dilys S. MacCarthy, Rolf Sommer, Paul L.G. Vlek

Journal:

Field Crops Research

Year:

2009

Language:

english

File:

PDF, 577 KB

english, 2009

27

Evaluation of soil quality identified by local farmers in Mai-Negus catchment, northern Ethiopia

Gebreyesus Brhane Tesfahunegn, Lulseged Tamene, Paul L.G. Vlek

Journal:

Year:

2011

Language:

english

File:

PDF, 1.62 MB

english, 2011

28

Land Resources: On the Edge of the Malthusion Precipice? || Nutrient Resources for Crop Production in the Tropics [and Discussion]

Paul L. G. Vlek, Ronald F. Kuhne, Manfred Denich, T. Henzell, P. Wood, P. J. Leggo, K. Giller, D. S. Powlson, M. H. B. Hayes and P. Sanchez

Journal:

Philosophical Transactions Biological Sciences

Year:

1997

Language:

english

File:

PDF, 1.79 MB

english, 1997

29

The chemical dynamics of ammonia volatilization from aqueous solution

Michael B. Moeller, Paul L.G. Vlek

Journal:

Atmospheric Environment (1967)

Year:

1967

Language:

english

File:

PDF, 897 KB

english, 1967

30

Rainfall variability adaptation strategies: An ex-ante assessment of supplemental irrigation from farm ponds in southern Burkina Faso

Sanfo, Safiétou, Barbier, Bruno, Dabiré, Isabelle W.P., Vlek, Paul L.G., Fonta, William M., Ibrahim, Boubacar, Barry, Boubacar

Journal:

Agricultural Systems

Year:

2017

Language:

english

File:

PDF, 1.20 MB

english, 2017

31

Gender and climate change linkages in the semi-arid region of Ghana

Mensah, Michael, Vlek, Paul L. G., Fosu-Mensah, Benedicta Y.

Journal:

Year:

2020

File:

PDF, 764 KB

2020

32

Land-Cover Dynamics in an Urban Area of Ghana

Braimoh, Ademola K., Vlek, Paul L. G.

Journal:

Earth Interactions

Year:

2004

Language:

english

File:

PDF, 545 KB

english, 2004

33

A concept for the development of fire-free fallow management in the Eastern Amazon, Brazil

Manfred Denich, Paul L.G. Vlek, Tatiana D. de Abreu Sá, Konrad Vielhauer, Wolfgang Lücke

Journal:

Agriculture, Ecosystems & Environment

Year:

2005

Language:

english

File:

PDF, 555 KB

english, 2005

34

Annual vegetation burns across the northern savanna region of Ghana: period of occurrence, area burns, nutrient losses and emissions

Joseph X. Kugbe, Fosu Mathias, Tamene L. Desta, Manfred Denich, Paul L. G. Vlek

Journal:

Nutrient Cycling in Agroecosystems

Year:

2012

Language:

english

File:

PDF, 1.17 MB

english, 2012

35

Circulating Tumor DNA as a Preoperative Marker of Recurrence in Patients with Peritoneal Metastases of Colorectal Cancer: A Clinical Feasibility Study

Beagan, Jamie J., Sluiter, Nina R., Bach, Sander, Eijk, Paul P., Vlek, Stijn L., Heideman, DaniÃ«lle A. M., Kusters, Miranda, Pegtel, D. Michiel, Kazemier, Geert, van Grieken, Nicole C. T., Ylstra, Ba

Journal:

Journal of Clinical Medicine

Year:

2020

File:

PDF, 560 KB

2020

36

Effects of Change in Population, Household Conditions and Farming Practices on Agricultural Land Use in the Volta River Basin of Ghana, 1984–2000 (Auswirkungen von veränderten Bevölkerungsverhältnissen, häuslichen Bedingungen und landwirtschaftlichen Praktiken auf die landwirtschaftliche Nutzung im Volta-Becken von Ghana, 1984–2000)

Samuel N. A. Codjoe, Eckart Ehlers and Paul L. G. Vlek

Journal:

Year:

2005

Language:

english

File:

PDF, 1.28 MB

english, 2005

37

Assessing Soil Properties and Landforms in the Mai-Negus Catchment, Northern Ethiopia

TESFAHUNEGN, Gebreyesus Brhane, TAMENE, Lulseged, VLEK, Paul L.G.

Journal:

Year:

2016

Language:

english

File:

PDF, 872 KB

english, 2016

38

Modeling of Cotton Yields in the Amu Darya River Floodplains of Uzbekistan Integrating Multitemporal Remote Sensing and Minimum Field Data

Shi, Zhou, Ruecker, Gerd R., Mueller, Marc, Conrad, Christopher, Ibragimov, Nazar, Lamers, John P. A., Martius, Christopher, Strunz, Guenter, Dech, Stefan, Vlek, Paul L. G.

Journal:

Agronomy Journal

Year:

2007

Language:

english

File:

PDF, 286 KB

english, 2007

39

Transforming the Dry Lands: The Sadguru Story of Western India - By Harnath Jagawat

Journal:

Natural Resources Forum (John Wiley and Sons)

Year:

2006

Language:

english

File:

PDF, 50 KB

english, 2006

40

Energy Use and CO2Production in Tropical Agriculture and Means and Strategies for Reduction or Mitigation

Paul L.G. Vlek, Gabriela Rodríguez-Kuhl, Rolf Sommer

Journal:

Environment, Development and Sustainability

Year:

2004

Language:

english

File:

PDF, 110 KB

english, 2004

41

Seasonal Variation of Temporal Patterns of Water Flux in a Cashew Orchard Under Sub-humid Tropical Conditions

Oguntunde, Philip G., Ajayi, Ayodele E., Friesen, Jan, van de Giesen, Nick, Vlek, Paul L. G.

Journal:

Journal of Crop Improvement

Year:

2011

Language:

english

File:

PDF, 408 KB

english, 2011

42

Impact of season, fuel load and vegetation cover on fire mediated nutrient losses across savanna agro-ecosystems: the case of northern Ghana

Kugbe, Joseph, Fosu, Mathias, Vlek, Paul L. G.

Journal:

Nutrient Cycling in Agroecosystems

Year:

2015

Language:

english

File:

PDF, 1.90 MB

english, 2015

43

Sediment-bound nutrient export from five small reservoir catchments and its implications for the Sudan savanna zone of Ghana

Bright K. Amegashie, Charles Quansah, Wilson A. Agyare, Lulseged Tamene, Paul L. G. Vlek

Journal:

Lakes & Reservoirs: Research & Management

Year:

2011

Language:

english

File:

PDF, 310 KB

english, 2011

44

The GLOWA Volta Project: A framework for water resources decision-making and scientific capacity building in a transnational West African Basin

Charles Rodgers, Nick van de Giesen, Wolfram Laube, Paul L. G. Vlek, Eva Youkhana

Journal:

Water Resources Management

Year:

2007

Language:

english

File:

PDF, 501 KB

english, 2007

45

Land Use and Soil Resources ||

Braimoh, Ademola K., Vlek, Paul L. G.

Year:

2008

Language:

english

File:

PDF, 36.90 MB

english, 2008

46

The role ofAzollacover in improving the nitrogen use efficiency of lowland rice

Maria Andrea R. de Macale, Paul L.G. Vlek

Journal:

Year:

2004

Language:

english

File:

PDF, 433 KB

english, 2004

47

Rate control of ammonia volatilization from rice paddies

Reinier J.B. Bouwmeester, Paul L.G. Vlek

Journal:

Atmospheric Environment (1967)

Year:

1967

Language:

english

File:

PDF, 1.00 MB

english, 1967

48

Deep Soil Water Dynamics and Depletion by Secondary Vegetation in the Eastern Amazon

Sommer, Rolf, FÃ¶lster, Horst, Vielhauer, Konrad, Carvalho, Eduardo J. Maklouf, Vlek, Paul L. G.

Journal:

Soil Science Society of America Journal

Year:

2003

File:

PDF, 244 KB

2003

49

Nutrient flows in international trade: Ecology and policy issues

Ulrike Grote, Eric Craswell, Paul Vlek

Journal:

Environmental Science & Policy

Year:

2005

Language:

english

File:

PDF, 514 KB

english, 2005

50

The role ofAzollain curbing ammonia volatilization from flooded rice systems

Paul L. G. Vlek, Moussa Y. Diakite, Henning Mueller

Journal:

Nutrient Cycling in Agroecosystems

Year:

1995

Language:

english

File:

PDF, 842 KB

english, 1995

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