Senior Researcher |
Dr. John Lamers |
| Contact |
 |
|
| Department | ZEF C: Department of Ecology and Natural Resources Management | |
| Research countries |
- Burkina Faso - Germany - Kyrgyzstan - Tajikistan - Uzbekistan |
|
| Research topic | Farm analyses, analyses agroforestry systems, growth analyses | |
| Publications |
Ibragimov, N., S. Evett, Y. Esenbekov, F. Khasanova, I. Karabaev, L. Mirzaev, and J.P.A. Lamers. 2011. Permanent Beds vs. Conventional Tillage in Irrigated Arid Central Asia. Agronomy Journal, 103 (4): 1002-1011. Babadjanova, Sh., Ibragimov,N., Lamers, J., Kienzler, K. 2010. Biometric parameters and productivity of leguminous cereals under conditions of the Khorezm region. Proceedings of the 3rd International Scientific-Practical Conference held in Nukus, May 13-14, 116-117.
Bekchanov, M., Lamers, J.P.A., Martius, C.
2010.
Pros and Cons of Adopting Water-Wise Approaches in the Lower Reaches of the Amu Darya: A Socio-Economic View.
Water,
2(2) Special Issue Challenges and Developments on Water Resources Management in Central Asia:
200-216.
Djanibekov, N., Rudenko, I., Lamers, J.P.A., Bobojonov, I.
2010.
Pros and Cons of Cotton Production in Uzbekistan. Case Study 7-9.
In:
Pinstrup-Andersen, P. and F. Cheng (eds.):
Food Policy for Developing Countries: Case Studies.
13.
Djumaeva, D., Lamers, J.P.A., Martius, C., Khamzina, A., Ibragimov, N., Vlek P.L.G.
2010.
Quantification of symbiotic nitrogen fixation by Elaeagnus angustifolia L. on salt-affected irrigated croplands using two 15N isotopic methods.
Nutrient Cycling in Agroecosystems (Nutr Cycl Agroecosyst),
88 (3):
329-339.
Djumaniyazova, Y., Sommer, R., Ibragimov, N., Jumanar, R., Lamers, J.P.A., Vlek, P.
2010.
Simulating water use and N response of winter wheat in the irrigated floodplains of aridNorthwest Uzbekistan, Central Asia.
Field Crops Research,
116:
239–251.
Djumaniyazova, Y.A., Rudenko, I., Ibragimov, N.M., Ruzimov, J.Sh., Lamers, J. 2010. Economic efficiency of nitrogen fertilizer application rates for winter wheat based on irrigation norms. Proceedings of the 3rd International Scientific-Practical Conference held in Nukus, May 13-14, 7-8.
Lamers J.P.A., C. Martius, A. Khamzina, M. Matkarimova, D. Djumaeva and R. EshchanovD. Eshchanov. R.
2010.
Green foliage decomposition in tree plantations on degraded, irrigated croplands in Uzbekistan, Central Asia.
Nutrient Cycling in Agroecosystems,
87 (2):
249–260.
Lamers, J.P.A. and Khamzina, A.
2010.
Seasonal quality profile and production of foliage from trees grown on degraded cropland in arid Uzbekistan, Central Asia.
Journal of Animal Physiology and Animal Nutrition,
94:
e77-e85.
Manschadi, A. M., Oberkircher, L., Tischbein, B., Conrad, C., Hornidge, A-K. Bhaduri, A.,Schorcht, G., Lamers, J.P.A. and Vlek, P.L.G.
2010.
“White Gold” and Aral Sea disaster – Towards more efficient use of water resources in the Khorezm region, Uzbekistan.
Lohmann information,
Vol. 45 (1):
34-47.
Rudenko I., and Lamers J.P.A.
2010.
Virtual water saves prized liquid asset. Concept raisesawareness about dwindling resource in arid region.
VOICES,
23:
18-19.
Rudenko, I. and J.P.A Lamers.
2010.
The Aral Sea: An Ecological Disaster. Case Study 8-6.
In:
Pinstrup-Andersen, P. and F. Cheng (eds.):
Food Policy for Developing Countries: Case Studies.
14.
Shanafield, M., M. Rosen, L. Saito, S. Chandra, J. Lamers and B. Nishonov.
2010.
Identification of nitrogen sources to four small lakes in the agricultural region of Khorezm, Uzbekistan.
Biogeochemistry (Biogeomon),
101:
357-368.
114. Djumaniyozova, Y., Ibragimov N., J. Ruzimov, J.P.A. Lamers. 2009. Winter wheat: Irrigaton methods and application of nitrogen fertilizer. Agriculture in Uzbekistan, 5: 17-18. Begdullaeva, T., M.Orel, I.Rudenko, N.Ibragimov, J.P.A. Lamers, K.Toderich, Z.Khalikulov and C.Martius. 2009. Productivity of introduced and local sugar sorghum kinds inKarakalpakstan. Vestnik, 2: 20-22. Bekchanov M.B., Kan, E., Lamers, J.P.A. 2009. Options of agricultural extension provision for rural development in Central Asian transition economies: the case of Uzbekistan. In: Annual Conference Proceedings Research for Sustainable Development held by Westminster International University, Tashkent, 14th May. 72-82. Djumaeva, D., Djanibekov, N., Vlek, P.L.G., Martius, C. and Lamers, J.P.A. 2009. Options for optimizing dairy feed rations with foliage of trees grown in the irrigated drylands of Central Asia. Research Journal of Agriculture and Biological Sciences, 5(5): 698-708. Djumaniyazova,Y., Ibragimov, N., Ruzimov, J., Lamers, J.P.A. 2009. Winter wheat yield modeling depending on N rate and irrigation scheduling in a meadow soil of the desert zone of Uzbekistan. In: Proceedings of the the 4th International Conference for young scientists held in Almalybak, Kazakhstan, 3-4 December. 10-13.
Forkutsa, I., Sommer, R., Shirokova, Lamers, J.P.A., Kienzler, K., Tischbein, B., Martius, C. and P.L.G. Vlek.
2009.
Modeling irrigated cotton with shallow groundwater in the AralSea Basin of Uzbekistan: I. Water dynamics.
Irrigation Science,
27(4):
331-346.
Forkutsa, I., Sommer, R., Shirokova, Lamers, J.P.A., Kienzler, K., Tischbein, B., Martius, C. and P.L.G. Vlek.
2009.
Modeling irrigated cotton with shallow groundwater in the Aral Sea Basin of Uzbekistan: II. Soil salinity dynamics.
Irrigation Science,
27(4):
319-330.
Ibrakhimova, D., Rudenko, I., and Lamers, J.P.A. 2009. Advantages of resource saving soilconservation agriculture in the Khorezm region. Khorezm Mamun Academy’s bulletin, 1/2: 58-64.
Khamzina, A., J.P.A.Lamers, and P.L.G.Vlek.
2009.
Nitrogen fixation by Elaeagnus angustifolia L. in the reclamation of degraded irrigated croplands of Central Asia.
Tree Physiology,
29(6):
799-808.
Khamzina, A., R. Sommer, J.P.A. Lamers, P.L.G. Vlek.
2009.
Transpiration and early growth of tree plantations established on degraded cropland over shallow saline groundwatertable in northwest Uzbekistan.
Agric. Forest Meteorol,
149:
1865-1874.
Lamers, J.P.A., A.Akramhanov, O.Egamberdiev, A.Mossadegh-Manschadi, M.Tursunov,C.Martius, R.Gupta, K.Sayre, R.Eshchanov and S.Kienzler. 2009. Rationale for conservation agriculture under irrigated production in Central Asia. Lessons learned. In: 4th World Congress on Conservation Agriculture. 4-7 February, 2009, New Delhi, India. 146-155. Lamers, J.P.A., Feil, P. Hoffmann, V. 2009. Re-organisation of extension: Introducing fee-based agricultural extension in Azerbaijan. In: Hoffmann, V., A. Christinck and M. Lemma (eds.): Rural Extension Examples and Background material, vol. 2, 3rd edition. Margraf Publishers GmbH, 147-159. Martius, C. J.P.A. Lamers, P.L.G. Vlek. 2009. Integrierte Ansätze zu Land- und Wassermanagement in Zentralasien: ein Pilotprojekt im Distrikt Khorezm im Aralseegebiet. In: M. Kramer (ed.), Wasserprobleme in Zentralasien. DUV (Gabler Edition Wissenschaft), Reihe, 238-249. Nishonov, B., Rosen, M.R., Fayzieva, D., Saito, L. and J. Lamers. 2009. Organochlorine Pesticides Residue in Lakes of Khorezm, Uzbekistan. In: 10th International HCH and Pesticides Forum "How Many Obsolete Pesticides have been disposed of 8 Years after Signature of Stockholm Convention", September 6-10. RECETOX, Masaryk University, Brno, Czech Republic, 157-161. Rudenko, I., Djanibekov, U.,Lamers, J.P.A. 2009. Water footprint of cotton products.Is more efficient water use possible in Khorezm?. Vestnik, 3: 44-48. Rudenko, I., Grote, U., Lamers, J.P.A., Martius, C. 2009. Regionale Wirtschaftsprojekte zwischen Wertschoepfung und Nachhaltigkeit. In: Chiari, B. and M. Pahl (eds.): Wegweiser zur Geschichte zu Usbekistan. Schöningh Verlag, Paderborn, Germany, 258-267.
Rudenko, I., Lamers, J.P.A., Grote, U..
2009.
Can Uzbek farmers get more for their cotton?.
European Journal of Development Research,
21 (2):
283-296.
Scheer, C., Wassmann, R., Butterbach-Bahl, K., Lamers, J.P.A., Martius, C..
2009.
The Relationship between N2O, NO, and N2 fluxes from fertilized and irrigated dryland soils of the Aral Sea Basin, Uzbekistan.
Plant and Soil,
314:
273-283.
Bobojonov, I. and Lamers, J.P.A.. 2008. Analysis of agricultural markets in Khorezm, Uzbekistan. In: Wehrheim, P., Schoeller-Schletter, A., Martius, Ch. (eds.): Continuity and change land and water use reforms in rural Uzbekistan – Socio-economic and legal analyses for the region Khorezm. IAMO, Germany, 165-182. Bobojonov, I., Rudenko, I., Lamers, J.P.A.. 2008. Optimal crop allocation and consequent ecological benefits in large-scale (shirkat) farms in Uzbekistan’s transition process. In: Wherheim, P., Schoeller-Schletter, A., Martius, Ch. (eds.): Continuity and change land and water use reforms in rural Uzbekistan – Socio-economic and legal analyses for the region Khorezm. IAMO, Germany, 63-85. Djumaeva, D., Abdullaeva, F., Ibragimov, N., Lamers, J.P.A.. 2008. Eleagnus – a treatment to infertile lands. Agriculture in Uzbekistan, 6: 32-33. Ibragimov, N., Scheer, C., Ruzimov, J., Lamers, J.P.A., Martius, C. 2008. Greenhouse gas emissions under different land use in lower reaches of Amu Darya river. Uzbekistan agrarian bulletin. Agrotechnology and biotechnology, 1 (31): 44-46. Kan, E., J.P.A. Lamers, R. Eschanov and A. Khamzina. 2008. Small-scale farmers’ perceptions and knowledge of tree intercropping systems in the Khorezm region of Uzbekistan. Forests, Trees and Livelihoods, 18(4): 355-372. Khamzina, A., J.P.A. Lamers and P.L.G. Vlek. 2008. Tree establishment under deficit irrigation on degraded agricultural land in the lower Amu Darya river region, Aral Sea basin. Forest Ecology and Management, 255 (1): 168-178. Lamers J.P.A. and A. Khamzina. 2008. Fuelwood Production in the Degraded Agricultural Areas of the Aral Sea Basin, Uzbekistan. Bois et Forets des Tropiques, 297 (3): 43-53. Lamers, J.P.A., I. Bobojonov, A. Khamzina and J. Franz. 2008. Financial analysis of small-scale forests in the Amu Darya Lowlands, Uzbekistan. Forests, Trees and Livelihoods, 18: 373-386.
Rudenko, I., Grote, U. and Lamers, J.P.A..
2008.
Using a Value Chain Approach for Economic and Environmental Impact Assessment of Cotton Production in Uzbekistan.
In:
J. Qi and T. Evered (eds.):
Environmental Problems of Central Asia and Their Economic, Social and Security Impacts. Proceedings of the NATO advanced research workshop on environmental problems of Central Asia and their Economic, Social and Security impacts. Tashkent, Uzbekistan.
Springer, AK/NATO,
361-380.
Rudenko, I., Grote, U., Lamers, J.P.A. and Martius, Ch..
2008.
Wert schöpfen, Wasser sparen. Effizienzsteigerung im usbekischen Baumwollsektor.
In:
Sapper, M. and V. Weichsel (eds.):
Grünbuch. Politische Ökologie im Osten Europas.
Osteuropa, Berlin,
407–417.
Scheer, C., Ibragimov, N., Ruzimov, J., Lamers, J.P.A., Martius, Ch.. 2008. Emission of green house gasses. Agriculture of Uzbekistan, 10: 22.
Scheer, C., Wassmann, R., Kienzler, K., Ibragimov, N., Lamers, J.P.A., Martius, Ch..
2008.
Methane and nitrous oxide fluxes in annual and perennial land use systems of the irrigated areas in the Aral Sea Basin.
Global Change Biology,
14:
1–15.
Sommer, R., K. Kienzler, C.Conrad, N.Ibragimov, J.Lamers, C. Martius and P.Vlek.
2008.
Evaluation of CropSyst for simulating the potential yield of cotton in Uzbekistan.
Agronomy for Sustainable Development,
28 (2):
345-354.
Begdullayeva, T., K.M. Kienzler, E. Kan, N. Ibragimov, and J.P.A Lamers.
2007.
Response of Sorghum bicolor varieties to soil salinity for feed and food production in Karakalpakstan, Uzbekistan.
Irrigation and Drainage Systems,
21:
237-250.
Conrad, C., S.W. Dech, M.Hafeez, J.P.A.Lamers, C. Martius and G.Strunz.
2007.
Mapping and assessing water use in a Central Asian irrigation system by utilizing MODIS remote sensing products.
Irrigation and Drainage Systems,
21 (3-4):
197-218.
Eschanov R., C. Conrad, and J.P.A. Lamers. 2007. Using remote sensing to monitor the cotton growth in the Khorezm Region. In: Scientific and practical bases of improvement of soil fertility. Proceedings of the International Conference held in Tashkent, Uzbekistan, 27-28 August. Uzbekistan Cotton Research Institute, Part 1, 428 p.
Eshchanov, R., E., Kan, A., Khamzina, and J.P.A. Lamers.
2007.
Farmer’s knowledge and perceptions about multipurpose trees and tree intercropping systems in post-independence private farming systems in Uzbekistan.
ZEF Work Papers for Sustainable Development in Central Asia,
10:
38.
Ibragimov, N., S. Evett, Y. Esanbekov, B. Kamilov, L. Mirzaev, and J.P.A.Lamers. 2007. Water use efficiency of irrigated cotton in Uzbekistan under drip and furrow irrigation. Agricultural Water Management, 90: 112-120.
Ibrakhimov, M., Khamzina, A., Forkutsa, I., Paluasheva, G., Lamers, J.P.A., Tischbein, B., Vlek, P.L.G., Martius, C..
2007.
Groundwater table and salinity: Spatial and temporal distribution and influence on soil salinization in Khorezm region (Uzbekistan, Aral Sea Basin).
Irrig. Drainage Syst.,
21 (3-4),:
219-236.
Lamers, J.P.A., P.R. Feil, N. Bayverdiyeva, Y. Guliyeva and F. Djafarov. 2007. Transfer to paid agricultural extension: Achievements of a situation specific, client-oriented training and advisory concept for independent advisors in Azerbaijan. In: Knierim, A., U.J. Nagel and C. Schaefer (eds.): Managing Economic, Social and Bilogical Transformations - Proceedings of the First Green Week scientific Conference. Margraf Publishers, Weikersheim, Germany, 188-195. Ruecker G.R., Z. Shi, M. Mueller, C. Conrad, N. Ibragimov, J.P.A. Lamers, C. Martius, G. Strunz, and S.W. Dech. 2007. Regional scale estimation of cotton yield in Uzbekistan by integrating remote sensing and field data info into an agrometeorological model. In: Scientific and practical bases of improvement of soil fertility. Proceedings of the International Conference held in Tashkent, Uzbekistan, 27-28 August. Uzbekistan Cotton Research Institute, Part 1, 213-220.
Shi, Z., G.Ruecker, M.Mueller, N.Ibragimov,, J.P.A.Lamers, G.Strunz and S.W.Dech.
2007.
Modeling of Cotton Yields in the Amu Darya River Floodplains of Uzbekistan Integrating Multitemporal Remote Sensing and Minimum Field Data.
Agronomy Journal,
99:
1317–1326.
Vlek P.L.G, C.Martius and J.P.A. Lamers. 2007. Beyond the Aral Sea syndrome: The ZEF/UNESCO efforts in Uzbekistan. RIHN 1st International Symposium Proceedings – Water and Better Human life in the future, November 6-8, 97-107. Bobojonov, I. and J.P.A. Lamers. 2006. Optimization of crop allocations based on comparative economic advantages for various scenarios in Khorezm province of Uzbekistan. In: Proceedings of transition toward market economy in water resources management and land melioration in Uzbekistan (Section 1 and 2). Ministry of water resources and agriculture of Uzbekistan, University of TIIM, Tashkent, November 16-18, 70-76. Jabbarov, H., R. Eshchanov, J.P.A. Lamers and C. Martius. 2006. Irrigated land improvement. Agriculture in Uzbekistan, 1: 34. Khamzina, A., E. Botman, J.P.A. Lamers. 2006. The biodrainage properties of the forest plantations and melioration of the degraded lands. Agriculture in Uzbekistan, 9: 24.
Khamzina, A., J.P.A. Lamers, C. Martius, M. Worbes and P.L.G. Vlek.
2006.
Potential of nine multipurpose tree species to reduce saline groundwater tables in the lower Amu Darya River region of Uzbekistan.
Agrofor. Syst,
68:
151-165.
Kohlschmitt, S. J.P.A. Lamers, I. Bobojanov, C. Martius and R. Eshchanov. 2006. Alternative Crops. Agriculture in Uzbekistan, 11: 30. Lamers, J.P.A. and E. Kan. 2006. Trees in the landscape of Khorezm. Vestnik, 1: 19-21.
Lamers, J.P.A., A. Khamzina and M. Worbes.
2006.
The analyses of physiological and morphological attributes of 10 tree species for early determination of their suitability to afforest degraded landscapes in the Aral Sea Basin of Uzbekistan.
Forest Ecology and Management,
221(1-3):
249-259.
Lamers, J.P.A., O. Egamberdiev, C. Martius, L. Tursunov and A. Pulatov. 2006. Earthworms or a new agrobiological way to improve the soil fertility. Agriculture in Uzbekistan, 11: 29. Lamers, J.P.A., R. Eshchanov, N. Ibragimov, A. Pulatov and P. Vlek. 2006. Farmer. Land. Water. Agriculture in Uzbekistan, 10: 23. Matkarimova, M., R. Eshchanov, D. Djumaeva and J.P.A. Lamers. 2006. The estimation of the wood density. Agriculture in Uzbekistan, 11: 31. Rudenko, I. and J.P.A. Lamers. 2006. The comparative advantages of the present and future payment structures for agricultural producers in Uzbekistan. Central Asian Journal of management, economics and social research, 5(1-2): 106-125. Scheer, C., N. Ibragimov, K. Kienzler and J.P.A. Lamers. 2006. Nitrous Oxide Emission from Cotton Fields. Agriculture in Uzbekistan, 6: 14-15. Vlek, P., J.P.A. Lamers, C. Martius, R. Eshchanov, A Pulatov, K. Hamidov and B. Lane. 2006. The Economical and Ecological Restructuring of Resource Use. Agriculture in Uzbekistan, 9: 22. Worbes, M., E.Botman, A.Khamzina, A.Tupitsa, C.Martius, and J.P.A.Lamers. 2006. Scope and constraints for tree planting in the irrigated landscapes of the Aral Sea Basin: case studies in Khorezm Region,Uzbekistan. ZEF Discussion Papers On Development Policy, 112: 49. Ibrahimov, M., M. Mirhojayev, Y. Shirokova, J.P.A. Lamers. 2005. Modern technologies. Geographical Information Systems. Agriculture in Uzbekistan, 3: 30-31. Khamzina, A., E. Botman and, J.P.A. Lamers. 2005. Tree species for afforestation: the potential assessment. Agriculture in Uzbekistan, 10: 27-28. Khamzina, A., E. Kan, D. Jumayeva, M. Matkarimova and J.P.A. Lamers. 2005. Examples from advantageous agroforestry practices in Khorezm: integration of N-fixing tree species. Agriculture in Uzbekistan, 12: 34-35. Khamzina, A., J.P.A. Lamers, B. Wickel, Y. Jumaniyazova and C. Martius. 2005. Evaluation of young and adult tree plantations for biodrainage management in the lower Amudarya River Region, Uzbekistan. In: Proceedings of ICID 21st European Regional Conference Integrated Land and Water Resources Management. Towards Sustainable Rural Development, Frankfurt (Oder) and Slubice - Germany and Poland, 15-19 May.,
Khamzina, A., J.P.A. Lamers, M. Worbes, E. Botman, and P.L.G. Vlek.
2005.
Assessing the potential of trees for afforestation of degraded landscapes in the Aral Sea Basin of Uzbekistan.
Agrofor. Syst,
66 (2):
129-141.
Lamers, J.P.A. 2005. Conservation agriculture: A new approach based on old ideas. Sarval,Baku, 17: 3. Lamers, J.P.A and T. Begdullayeva. 2005. The peculiarities of salt resistance and salt accumulation by local sorghum varieties in irrigated saline soil in Karakalpakstan. In: The proceedings of IV conference of soil scientists and agrochemists of Uzbekistan. Soil Science and Agrochemistry State Institute, 156-158. Martius, C., J.P.A. Lamers, P.L.G. Vlek, R. Eshchanov, I. Rudenko and O. Salayev. 2005. Water, Salt, Cotton and Soums: Shedding New Light on the Aral Sea Problem. In: Proceedings of the International Conference “The Global Food & Product Chain – Dynamics, Innovations, Conflicts, Strategies”. Centre for Agriculture in the Tropics and Subtropics, University of Hohenheim, Stuttgart, October 11-13, 66. Michels, K.H., J.P.A. Lamers and C. Studer. 2005. Auf Trockenheit muß kein Hunger folgen.. Frankfurter Allgemeine Zeitung (FAZ), Donnerstag, 6. Oktober, Nr. 232: Seite 9. Rudenko, I., J.P.A. Lamers and U. Bekchanov. 2005. Water pricing (Landscape Restructuring in Khorezm region, ZEF project). Agriculture in Uzbekistan, 3: 29-30. Ruzimov, J., N. Ibragimov and J.P.A. Lamers. 2005. Khorezm potatoes. Agriculture in Uzbekistan, 10: 20. Sommer, R., C. Martius, M. Müller, J.P.A. Lamers, G. Rücker, S. Shumilov, B. Tischbein and P.L.G. Vlek. 2005. Integrated Farm-Scale Modelling of Land, Water and Resource Allocation in the Khorezm Region of Uzbekistan. In: Proceedings of the International Conference “The Global Food & Product Chain – Dynamics, Innovations, Conflicts, Strategies”. Centre for Agriculture in the Tropics and Subtropics, University of Hohenheim, Stuttgart, October 11-13, 379. Khamzina, A., J.P.A. Lamers and M. Rakhimova. 2004. Elaboration of criteria to assort tree species for afforestation of degraded land in Khorezm. In: Proceedings of the scientific conference “Khorezm oasis and its ecological situation”. The Regional department of the Academy of Sciences of the Republic of Uzbekistan – Khorezm Mamun Academy, 3. Kienzler, K., J.P.A. Lamers and N. Ibragimov. 2004. N-fertilization of winter wheat for different soil textures in crop rotation systems in Khorezm region. In: Proceedings of the scientific conference Khorezm oasis and its ecological situation. The Regional department of the Academy of Sciences of the Republic of Uzbekistan – Khorezm Mamun Academy, October 24-25, 3. Kienzler, K., J.P.A. Lamers and N. Ibragimov. 2004. Efficiency of nitrogen fertilizer norms on irrigated winter wheat (Triticum aestivum L.) for two soil textures in Khorezm province. In: Proceedings of the international conference, New Technologies in Increasing the Soil Fertility. The State Scientific research institute on soil science and agrochemistry, Tashkent, September 9-10, 234-238. Kienzler, K., J.P.A. Lamers and N. Ibragimov. 2004. Comparative advantage of different N-fertilization rates on irrigated winter wheat (Triticum aestivum L.) for two soil textures in Khorezm region. In: Proceedings of the international conference devoted to the 75th anniversary of Uzbek Cotton Research Institute, Development Problems in Cotton and Grain Growing. Cotton Research Institute, Tashkent, September 7-9, 322-325. Lamers, J.P.A. and A. Khamzina. 2004. How efficient is the term water use efficiency for the efficient choice of crops and tree species in conditions of water scarcity in Khorezm. In: Collected theses of conference reports.The problems and ways of forming the economic links in agriculture and water management in conditions of market reforms development. 32-33. Martius, C., J.P.A. Lamers, M. Ibrakhimov and P.L.G. Vlek. 2004. Towards a sustainable use of natural resources in the Aral Sea Basin. Schriften des Forschungszentrums Jülich, Reihe Umwelt, 48: 117-134. Martius, C., J.P.A. Lamers, P. Wehrheim, A. Schoeller-Schletter, R. Eshchanov, A. Tupitsa, A. Khamzina, A. Akramkhanov and P. Vlek. 2004. Developing sustainable land and water management for the Aral Sea Basin through an interdisciplinary approach. Water in Agriculture, Canberra, ACIAR Proceedings, 116, 45-60. Ruecker, G., O Salaev, G. Ruzieva and J.P.A. Lamers. 2004. Central GIS- and WWW-Metainformation Databases for Land- and Water Use Restructuring in Khorezm, Uzbekistan. Poster prepared for the international Humbold conference in Tashkent. Sabirov, Q., J.P.A. Lamers and B. Lane. 2004. Cultural and Historical Places in Khorezm and Karakalpakistan and their potential for tourism development in the Aral Sea Basin. Paper presented at the conference on Tourism Development and Sustainable Incomes in the Aral Sea Region. Nukus-Khiva,
Vlek, P.L.G., C. Martius, P. Wehrheim, A. Schoeller-Schletter and J.P.A. Lamers.
2004.
Economic Restructuring of Land and Water Use in the Region Khorezm (Uzbekistan) (Project Proposal for Phase I).ZEF Work Papers for Sustainable Development in Central Asia, 5. Zentrum für Entwicklungsforschung (Centre for Development Reserach) ZEF Bonn.
Wall, C. and J.P.A. Lamers. 2004. Farmer priority setting: Issues and research needs for Khorezm, Uzbekistan. Central Asian Journal of management, economics and social research, 1(4): 3-23. Bielders, C.L., J.P.A. Lamers and K. Michels. 2003. Wind erosion control technologies in the West African Sahel: the effectiveness of windbreaks, mulching and soil tillage, and the perspective of farmers. Annals of Arid Zone, 40(3): 369-394.
Wall, C. and J.P.A. Lamers.
2003.
Farmer priority setting: Issues and research needs for Khorezm, Uzbekistan.
In:
ZEF Work Papers for Sustainable Development in Central Asia.
Zentrum für Entwicklungsforschung (Centre for Development Reserach) ZEF Bonn,
28.
Hoffmann, V., A. Kidd and J. Lamers. 2000. Reforming the organisation of agricultural extension in Germany: Lessons for other countries. AgRen, ODI Agricultural research and Extension Network paper, 98, 13. Kidd, A.D., J.P.A. Lamers, P.P. Ficarelli and V. Hoffmann. 2000. Privatising agricultural extension: caveat emptor. Journal of Rural studies, 16: 95-102. Lamers, J.P.A, G. Dürr and P.R. Feil. 2000. Developing a client-oriented, agricultural advisory system in Azerbaijan. Human Resources in Agricultural and Rural Development, 104-117. Michels, KH. und J.P.A. Lamers. 2000. Wer bändigt die Sandstürme am Rande der Sahara? Nicht immer sind Windschutzhecken angebracht. Neue Zürcher Zeitung, Mittwoch 23. 42. Buerkert, A. and J.P.A. Lamers. 1999. Soil erosion and deposition effects on surface characteristics and pearl millet growth in the West African Sahel. Plant and Soil, 215: 239-253. Lamers, J.P.A. 1998. Semi-Arid regions: An overview. In: The Evaluation of Technical and Institutional Options for Small Farmers in West Africa. Margraf Verlag, Weikersheim, 19-22. Lamers, J.P.A. 1998. Wind Erosion in Niger: Farmer Perceptions, Traditional Techniques to Prevent and Combat Wind Erosion, and Farmer Adoption of Modern Soil Conservation Technologies. In: Wind Erosion in Africa and West Asia: Problems and Control Strategies. International Center for Agricultural Research in the Dry Areas (ICARDA), 173-186. Lamers, J.P.A. and M. Bruentrup. 1998. Local and improved soil fertility technologies with millet crop residues in the Sahel: Are they financially viable?. In: Soil Fertility Management in West African Land Use Systems (eds.): . Margraf Verlag, Weikersheim, 487-493. Lamers, J.P.A., M. Bruentrup and A. Buerkert. 1998. The profitability of traditional and innovative mulching techniques using millet crop residues in the West African Sahel. Agriculture, Ecosystems and Environment, 67: 23-35. Michels, K., J.P.A. Lamers and A. Buerkert. 1998. Effects of windbreak species and mulching on wind erosion and millet yields in the Sahel. Experimental Agriculture, 34: 449-464. Bruentrup, M., J.P.A. Lamers and L. Herrmann. 1997. Modelling long-term effects of crop residue management for sustainable farming systems. In: Applications of Systems Approaches at the Farm and Regional Levels. Kluwer Academic Publishers, Great Britain, 53-64. Buerkert, A., J.P.A. Lamers, G. H. Schmelzer, K. Becker and H. Marschner. 1997. Phosphorus and millet crop residue application affect the quantity and quality of millet leaves and fodder weeds for ruminants in agro-pastoral systems of the Sahel. Experimental Agriculture, 33: 253-263. Kidd, A., J.P.A. Lamers, and V. Hoffmann. 1997. Towards pluralism in agricultural extension. A growing challenge to the public and private sectors. Entwicklung und Laendlicher Raum, 3/97: 7-10. Lamers, J.P.A. and P.R. Feil. 1997. Farmers' Unawareness, Extensions' Incapability or Researchers' Ignorance? The Case of Millet Stover Research in West Africa. In: Food Security and Innovations: Successes and Lessons Learned. Peter Lang Verlag, Frankfurt am Main, 469-481. Bruentrup, M., J.P.A. Lamers and F.Heidhues. 1996. The economics of millet crop residues for wind erosion control in Niger, West Africa. In: Wind Erosion in West Africa: The Problem and its Control. Stuttgart-Hohenheim, Germany. Markgraf Verlag, Weikersheim, Germany, 243-256. Bruentrup, M., J.P.A. Lamers, F. Heidhues and M. von Oppen. 1996. An Economic Evaluation of the Use of Millet Crop Residues from a Farming Systems Perspective. In: Buerkert, B., B.E. Allison and M. Oppen (eds.): Wind Erosion in Niger. Implications and Control Measures in a Millet-based Farming System. Kluwers Academic Publishers, Dortrecht, The Netherlands, 193-214. Buerkert, A., J.P.A. Lamers, H. Marschner and A. Bationo. 1996. Inputs of mineral nutrients and crop residue mulch reduce wind erosion effects on millet in the Sahel. In: Wind Erosion in West Africa: The Problem and its Control. Stuttgart-Hohenheim, Germany. Markgraf Verlag, Weikersheim, Germany, 145-160. Buerkert, A., K. Michels, J.P.A. Lamers, H. Marschner and A. Bationo. 1996. Anti-erosive, Soil Physical, and Nutritional Effects of Crop Residues. In: Wind Erosion in Niger. Implications and Control Measures in a Millet-based Farming System. Kluwers Academic Publishers, Dortrecht, The Netherlands, 123-138. Eltrop, L., B.E. Allison, J.P.A. Lamers and K. Michels. 1996. Effects of Planted Windbreaks on Wind Erosion and Millet Growth, and Biomass Production of the Windbreaks. In: Wind Erosion in Niger. Implications and Control Measures in a Millet-based Farming System. Kluwers Academic Publishers, Dortrecht, The Netherlands, 105-122. Feil, P. and J.P.A. Lamers. 1996. Farmers’ Perceptions about Wind Erosion and Its Control. In: Buerkert, B., B.E. Allison and M. Oppen (eds.): Wind Erosion in Niger. Implications and Control Measures in a Millet-based Farming System. Kluwers Academic Publishers, Dortrecht, The Netherlands, 215-234. Lamers, J.P.A. and M. Bruentrup. 1996. Comparative advantage of single and multipurpose uses of millet stover in Niger. Agricultural Systems, 50 (3): 273-285. Lamers, J.P.A. and M. von Oppen. 1996. Financial Analysis of Seven Planted Windbreaks. In: Buerkert, B., B.E. Allison and M. Oppen (eds.): Wind Erosion in Niger. Implications and Control Measures in a Millet-based Farming System. Kluwers Academic Publishers, Dortrecht, The Netherlands, 169-192. Lamers, J.P.A., A. Buerkert, H.P.S. Makkar, M. von Oppen and K. Becker. 1996. Biomass production, and feed and economic value of fodder weeds as by-products of millet cropping in a Sahelian farming system. Experimental Agriculture, 32: 317-326. Lamers, J.P.A., T. Becker and M. von Oppen. 1996. Arrangements to finance tree windbreaks for wind erosion control. In: Wind Erosion in West Africa: The Problem and its Control. Stuttgart-Hohenheim, Germany. Markgraf Verlag, Weikersheim, Germany, 227-241. Lichtblau, M. J.P.A. Lamers, M. von Oppen, and M. Bernard. 1996. Private funding mechanisms for agricultural research in West Africa. In: Institutions and Technologies for Rural Development in West Africa. Margraf Verlag, Weikersheim, 427-436. Oppen, M. von, and J.P.A. Lamers. 1996. Summary and Outlook. In: Buerkert, B., B.E. Allison and M. Oppen (eds.): Wind Erosion in Niger. Implications and Control Measures in a Millet-based Farming System. Kluwers Academic Publishers, Dortrecht, The Netherlands, 235-244. Feil, P.R., J.P.A. Lamers and L. Herrmann. 1995. Knowledge Transfer in the Field: Solving Crop Residue Problems in Niger. Journal for Technology Transfer, 20 (1): 31-41. Lamers, J.P.A and F. Emhardt. 1995. The role of weeds in Niger. ILEIA Newsletter, 11 (3): 9. Lamers, J.P.A. and P.R. Feil. 1995. Farmers' knowledge and management of spatial soil and crop growth variability in Niger, West Africa. Netherlands Journal of Agricultural Science, 43 (4): 375-389. Lamers, J.P.A., K. Michels and P.R. Feil. 1995. Wind erosion control using windbreaks and crop residues: local knowledge and experimental results. Der Tropenlandwirt (Journal of Agriculture in the Tropics and Subtropics), 96 (1): 87-96. Lamers, J.P.A., P.R. Feil and A. Buerkert. 1995. Spatial Crop growth variability in Western Niger: the knowledge of farmers and researchers. Indigenous Knowledge & Development Monitor, 3 (3): 17-19. Lamers, J.P.A., K. Michels and R.J. Vandenbeldt. 1994. Trees and Windbreaks in the Sahel. Establishment, growth, nutritive and calorific values. Agroforestry Systems, 26 (3): 171-184. Lamers, J.P.A., K. Michels, B.E. Allison and R.J. Vandenbeldt. 1994. Agronomic and socio-economic aspects of windbreaks in southwest-Niger. In: Proceedings of the 4th International Symposium Windbreaks and Agroforestry. Viborg, Hedeselskabet, Denmark, 28-30. Lamers, J.P.A., K. Michels, B.E. Allison, R.J. Vandenbeldt and M. von Oppen. 1994. Trees for agroforestry systems in Niger: Researchers gains through local knowledge of men and women. Quarterly Journal of International Agriculture, 33 (2): 179-191. Michels, K., J.P.A. Lamers, B.E. Allison and R.J. Vandenbeldt. 1994. La lutte contre l'érosion éolienne au Niger: Les savoirs des chercheurs et des paysans. In: "Réseau Erosion" Bulletin No 14. Orstom, Montpellier, France, 182-187. Lamers, J.P.A. and P.R. Feil. 1993. The many uses of millet crop residues. ILEIA Newsletter, 9 (2): 15. Werder, J., A. Kumar and J.P.A. Lamers. 1987. Relations entre facteurs climatiques et l'incidence de quelques parasites végétaux du mil (Pennisetum americanum). In: l'Agrométeorologie et la Protection des Cultures dans les Zones Semi-Arides. OMM/ICRISAT, Genève, la Suisse, 111-122. |
