-
1
-
-
0007938623
-
Flow modelling with ECOPATH: providing insights on the ecological state of agro-ecosystems
-
In: P.S. Teng, M.J. Kropff, H.F.M. ten Berge, J.B. Dent, F.B. Lansigan and H.H van Laar (eds.), Kluwer Academic Publishers, The Netherlands
-
Dalsgaard, J.P.T. and V. Christensen, 1997. Flow modelling with ECOPATH: providing insights on the ecological state of agro-ecosystems. In: P.S. Teng, M.J. Kropff, H.F.M. ten Berge, J.B. Dent, F.B. Lansigan and H.H van Laar (eds.) Applications of Systems Approaches at the Farm and Regional Level. Kluwer Academic Publishers, The Netherlands, pp. 203-212.
-
(1997)
Applications of Systems Approaches at the Farm and Regional Level
, pp. 203-212
-
-
Dalsgaard, J.P.T.1
Christensen, V.2
-
2
-
-
0034982738
-
Assessing sustainability of low-external-input farm management systems with the nutrient monitoring approach: a case study in Kenya
-
De Jager, A., D. Onduru, M.S. van Wijk, J. Vlaming and G.N. Gachini, 2001. Assessing sustainability of low-external-input farm management systems with the nutrient monitoring approach: a case study in Kenya. Agricultural Systems 69, 99-118.
-
(2001)
Agricultural Systems
, vol.69
, pp. 99-118
-
-
De Jager, A.1
Onduru, D.2
van Wijk, M.S.3
Vlaming, J.4
Gachini, G.N.5
-
3
-
-
0032406202
-
Monitoring nutrient flows and economic performance in African farming systems (NUTMON): IV. Linking nutrient balances and economic performance in three districts in Kenya
-
De Jager, A., I. Kariuku, F.M. Matiri, M. Odendo and J.M. Wanyama, 1998a. Monitoring nutrient flows and economic performance in African farming systems (NUTMON): IV. Linking nutrient balances and economic performance in three districts in Kenya. Agriculture, Ecosystems & Environment 71, 81-92.
-
(1998)
Agriculture, Ecosystems & Environment
, vol.71
, pp. 81-92
-
-
De Jager, A.1
Kariuku, I.2
Matiri, F.M.3
Odendo, M.4
Wanyama, J.M.5
-
4
-
-
0032406574
-
Monitoring nutrient flows and economic performance in African farming systems (NUTMON): I. Concepts and methodologies Agric
-
De Jager, A., S.M. Nandwa and P.F. Okoth, 1998b. Monitoring nutrient flows and economic performance in African farming systems (NUTMON): I. Concepts and methodologies Agric. Ecosystems & Environment 71, 37-48.
-
(1998)
Ecosystems & Environment
, vol.71
, pp. 37-48
-
-
De Jager, A.1
Nandwa, S.M.2
Okoth, P.F.3
-
5
-
-
0003548320
-
Managing soil fertility in the tropics: a resource guide for participatory research and action research
-
Royal Tropical Research Institute, Amsterdam, the Netherlands
-
Defoer, T. and A. Budelman (Eds.), 2000. Managing soil fertility in the tropics: a resource guide for participatory research and action research. Royal Tropical Research Institute, Amsterdam, the Netherlands.
-
(2000)
-
-
Defoer, T.1
Budelman, A.2
-
6
-
-
3442896307
-
Evaluating NUTMON nutrient balancing in Sub-Saharan Africa
-
Færge, J., and J. Magid, 2004. Evaluating NUTMON nutrient balancing in Sub-Saharan Africa. Nutrient Cycling in Agroecosystems 69, 101-110.
-
(2004)
Nutrient Cycling in Agroecosystems
, vol.69
, pp. 101-110
-
-
Færge, J.1
Magid, J.2
-
7
-
-
84890260539
-
Scaling Soil Nutrient Balances-Enabling mesoscale approaches for African realities
-
FAO,, FAO fertilizer and plant nutrition bulletin 15. FAO, Rome
-
FAO, 2005. Scaling Soil Nutrient Balances-Enabling mesoscale approaches for African realities. FAO fertilizer and plant nutrition bulletin 15. FAO, Rome.
-
(2005)
-
-
-
9
-
-
0033428157
-
Socioeconomic factors affecting the adoption potential of improved tree fallows in Africa
-
Franzel, S., 1999. Socioeconomic factors affecting the adoption potential of improved tree fallows in Africa. Agroforestry Systems 47, 305-321.
-
(1999)
Agroforestry Systems
, vol.47
, pp. 305-321
-
-
Franzel, S.1
-
10
-
-
84899285592
-
Fertilizer Use Recommendation Project
-
FURP,, Final Report. Description of first priority trial sites. Nairobi. National Agricultural Research Laboratories. Nairobi, Kenya
-
FURP, 1987. Fertilizer Use Recommendation Project. Final Report. Description of first priority trial sites. Nairobi. National Agricultural Research Laboratories. Nairobi, Kenya.
-
(1987)
-
-
-
11
-
-
7744227551
-
Participatory diagnosis of soil nutrient depletion in semi-arid areas of Kenya
-
Managing Africa's Soils No. 26. IIED, London, UK
-
Gachimbi, L.N., A. de Jager, H. van Keulen, E.G. Thuranira and S.M. Nandwa, 2002. Participatory diagnosis of soil nutrient depletion in semi-arid areas of Kenya. Managing Africa's Soils No. 26. IIED, London, UK.
-
(2002)
-
-
Gachimbi, L.N.1
de Jager, A.2
van Keulen, H.3
Thuranira, E.G.4
Nandwa, S.M.5
-
12
-
-
31444448181
-
Resource use dynamics and interactions in the tropics: scaling up in space and time
-
Giller, K.E., E.C. Rowe, N. de Ridder and H. van Keulen, 2006. Resource use dynamics and interactions in the tropics: scaling up in space and time. Agricultural Systems 88, 8-27.
-
(2006)
Agricultural Systems
, vol.88
, pp. 8-27
-
-
Giller, K.E.1
Rowe, E.C.2
de Ridder, N.3
van Keulen, H.4
-
13
-
-
0003966695
-
Integrated Nutrient Management, Soil Fertility, and Sustainable Agriculture: Current Issues and Future Challenges
-
Food, Agriculture, and the Environment Discussion Paper 32, IFPRI, Washington
-
Gruhn, P., F. Goletti and M. Yudelman, 2000. Integrated Nutrient Management, Soil Fertility, and Sustainable Agriculture: Current Issues and Future Challenges. Food, Agriculture, and the Environment Discussion Paper 32, IFPRI, Washington.
-
(2000)
-
-
Gruhn, P.1
Goletti, F.2
Yudelman, M.3
-
14
-
-
33747502828
-
Smallholders' soil fertility management in the central highlands of Ethiopia: implications for nutrient stocks, balances and sustainability of agroecosystems
-
Haileslassie, A., J.A. Priess, E. Veldkamp and J.P. Lesschen, 2006. Smallholders' soil fertility management in the central highlands of Ethiopia: implications for nutrient stocks, balances and sustainability of agroecosystems. Nutrient Cycling in Agroecosystems 75, 135-146.
-
(2006)
Nutrient Cycling in Agroecosystems
, vol.75
, pp. 135-146
-
-
Haileslassie, A.1
Priess, J.A.2
Veldkamp, E.3
Lesschen, J.P.4
-
15
-
-
0028160562
-
Calculating the annual input of organic matter to soil from measurements of total organic carbon and radiocarbon
-
Jenkinson D.S., and K. Coleman, 1994. Calculating the annual input of organic matter to soil from measurements of total organic carbon and radiocarbon. European Journal of Soil Science, 45, 167-174.
-
(1994)
European Journal of Soil Science
, vol.45
, pp. 167-174
-
-
Jenkinson, D.S.1
Coleman, K.2
-
16
-
-
27844586046
-
Strategy for Revitalizing Agriculture
-
Prepared by Ministry of Agriculture and the Ministry of Livestock and Fisheries Development. Nairobi, Kenya Kenyan Government
-
Kenyan Government, 2004. Strategy for Revitalizing Agriculture. Prepared by Ministry of Agriculture and the Ministry of Livestock and Fisheries Development. Nairobi, Kenya.
-
(2004)
-
-
-
17
-
-
7744220924
-
Environmental crisis or 'lie of the land'? The debate on soil degradation in Africa
-
Koning, N., and E.M.A. Smaling, 2005. Environmental crisis or 'lie of the land'? The debate on soil degradation in Africa. Land use policy 22, 3-11.
-
(2005)
Land use policy
, vol.22
, pp. 3-11
-
-
Koning, N.1
Smaling, E.M.A.2
-
18
-
-
79958003822
-
Roles of ponds in integrated aquaculture-agriculture systems
-
In: A.J. van der Zijpp, J.A.J. Verreth, Le Quang Tri, M.E.F. van Mensvoort, R.H. Bosma and M.C.M. Beveridge (eds.), Wageningen Academic Publishers, Wageningen, The Netherlands
-
Muendo, P.N., J.J. Stoorvogel, M.C.J. Verdegem, E.-N. Gamal and J.A.J. Verreth, 2007. Roles of ponds in integrated aquaculture-agriculture systems. In: A.J. van der Zijpp, J.A.J. Verreth, Le Quang Tri, M.E.F. van Mensvoort, R.H. Bosma and M.C.M. Beveridge (eds.), Fishponds in farming systems. Wageningen Academic Publishers, Wageningen, The Netherlands, pp. 125-133.
-
(2007)
Fishponds in farming systems
, pp. 125-133
-
-
Muendo, P.N.1
Stoorvogel, J.J.2
Verdegem, M.C.J.3
Gamal, E.-N.4
Verreth, J.A.J.5
-
19
-
-
34548828474
-
Adoption of maize seed and fertilizer technologies in Embu District, Kenya
-
Cimmyt, Kari, Nairobi, Kenya
-
Ouma, J.O., F.M. Murithi, W. Mwangi, H. Verkuijl, M. Gethi and H. de Groote, 2002. Adoption of maize seed and fertilizer technologies in Embu District, Kenya. Cimmyt, Kari, Nairobi, Kenya.
-
(2002)
-
-
Ouma, J.O.1
Murithi, F.M.2
Mwangi, W.3
Verkuijl, H.4
Gethi, M.5
de Groote, H.6
-
20
-
-
0004258626
-
CENTURY Users' Manual, Natural Resource Ecology Laboratory
-
Colorado State University, Ft. Collins
-
Parton, W.J., R. McKeown, V. Kirchner and D. Ojima, 1992. CENTURY Users' Manual, Natural Resource Ecology Laboratory, Colorado State University, Ft. Collins.
-
(1992)
-
-
Parton, W.J.1
McKeown, R.2
Kirchner, V.3
Ojima, D.4
-
21
-
-
0000371810
-
An approach to estimating an ecosystembox model
-
Polovina, J.J. 1985. An approach to estimating an ecosystembox model. U.S. Fisheries Bulletin 83, 457-460.
-
(1985)
U.S. Fisheries Bulletin
, vol.83
, pp. 457-460
-
-
Polovina, J.J.1
-
22
-
-
0035010867
-
Assessment of interactions between land use change and carbon and nutrient fluxes in Ecuador
-
Priess, J.A., G.H.J. de Koning and A. Veldkamp, 2001. Assessment of interactions between land use change and carbon and nutrient fluxes in Ecuador. Agriculture, Ecosystems & Environment 85, 269-279.
-
(2001)
Agriculture, Ecosystems & Environment
, vol.85
, pp. 269-279
-
-
Priess, J.A.1
de Koning, G.H.J.2
Veldkamp, A.3
-
23
-
-
84899251485
-
Nutrient Flux between Maize and Livestock in a Maize-Coffee-Livestock System in Central Kenya
-
J.M. Powell, S. Fernandez-Rivera, T.O. Williams and C. Renard (eds.). Addis Ababa, Ethiopia: International Livestock Centre for Africa
-
Ransom, J.K., J. Ojiem and F.K. Kanampiu, 1993. Nutrient Flux between Maize and Livestock in a Maize-Coffee-Livestock System in Central Kenya. In: Livestock and Sustainable Nutrient Cycling in Mixed Farming Systems of Sub-Saharan Africa, J.M. Powell, S. Fernandez-Rivera, T.O. Williams and C. Renard (eds.). Addis Ababa, Ethiopia: International Livestock Centre for Africa, pp. 411-418.
-
(1993)
Livestock and Sustainable Nutrient Cycling in Mixed Farming Systems of Sub-Saharan Africa
, pp. 411-418
-
-
Ransom, J.K.1
Ojiem, J.2
Kanampiu, F.K.3
-
24
-
-
0035714250
-
Organic matter management for soil conservation and productivity restoration in Africa: a contribution from Francophone research
-
Roose, E., and B. Barthès, 2001. Organic matter management for soil conservation and productivity restoration in Africa: a contribution from Francophone research. Nutrient cycling in agroecosystems 61, 159-170.
-
(2001)
Nutrient cycling in agroecosystems
, vol.61
, pp. 159-170
-
-
Roose, E.1
Barthès, B.2
-
25
-
-
31444455337
-
Nutrient allocation strategies across a simplified heterogeneous African smallholder farm
-
Rowe, E.C., M.T. van Wijk, N. de Ridder and K.E. Giller, 2006. Nutrient allocation strategies across a simplified heterogeneous African smallholder farm. Agriculture, Ecosystems and Environment 116, 60-71.
-
(2006)
Agriculture, Ecosystems and Environment
, vol.116
, pp. 60-71
-
-
Rowe, E.C.1
van Wijk, M.T.2
de Ridder, N.3
Giller, K.E.4
-
26
-
-
40549137300
-
Assessment of soil nutrient balance
-
Approaches and methodologies. FAO Fertilizer and plant nutrition bulletins 14. FAO, Rome
-
Roy, R.N., R.V. Misra, J.P. Lesschen and E.M.A. Smaling, 2003. Assessment of soil nutrient balance. Approaches and methodologies. FAO Fertilizer and plant nutrition bulletins 14. FAO, Rome.
-
(2003)
-
-
Roy, R.N.1
Misra, R.V.2
Lesschen, J.P.3
Smaling, E.M.A.4
-
27
-
-
84899159611
-
Recommendation Guidelines for Crops, Soil fertility, and Livestock Management (up to 1998)
-
RRC-Embu., Embu, Kenya: RRC-Embu
-
RRC-Embu. 1998. Recommendation Guidelines for Crops, Soil fertility, and Livestock Management (up to 1998). Embu, Kenya: RRC-Embu.
-
(1998)
-
-
-
28
-
-
33645979902
-
An Assessment of the Adoption of Seed and Fertilizer Packages and the Role of Credit in Smallholder Maize Production in Kakamega and Vihiga Districts, Kenya
-
Mexico, D.F.:CIMMYT and KARI
-
Salasya, B.D, W. Mwangi, H. Verkuijl, M.A. Odendo and J.O. Odenya, 1998. An Assessment of the Adoption of Seed and Fertilizer Packages and the Role of Credit in Smallholder Maize Production in Kakamega and Vihiga Districts, Kenya. Mexico, D.F.:CIMMYT and KARI.
-
(1998)
-
-
Salasya, B.D.1
Mwangi, W.2
Verkuijl, H.3
Odendo, M.A.4
Odenya, J.O.5
-
30
-
-
14644427876
-
Beyond adding up inputs and outputs: process assessment and upscaling in modelling nutrient flows
-
Schlecht, E., and P. Hiernaux, 2004. Beyond adding up inputs and outputs: process assessment and upscaling in modelling nutrient flows. Nutrient Cycling in Agroecosystems 70, 303-319.
-
(2004)
Nutrient Cycling in Agroecosystems
, vol.70
, pp. 303-319
-
-
Schlecht, E.1
Hiernaux, P.2
-
32
-
-
0003584853
-
Policies for soil fertility management in Africa
-
Report prepared for DFID, IDS and IIED, UK
-
Scoones, I., and C., Toulmin, 1999. Policies for soil fertility management in Africa. Report prepared for DFID, IDS and IIED, UK.
-
(1999)
-
-
Scoones, I.1
Toulmin, C.2
-
33
-
-
0027713862
-
A decision-support model for monitoring nutrient balances under agricultural land use (NUTMON)
-
Smaling, E.M.A., and L.O. Fresco, 1993. A decision-support model for monitoring nutrient balances under agricultural land use (NUTMON). Geoderma 60, 235-256.
-
(1993)
Geoderma
, vol.60
, pp. 235-256
-
-
Smaling, E.M.A.1
Fresco, L.O.2
-
34
-
-
0027100845
-
Yield response of maize to fertilizers and manure under different agro-ecological conditions in Kenya
-
Smaling, E.M.A., S.M. Nandwa, H. Prestele, R. Roetter and F.N. Muchena, 1992. Yield response of maize to fertilizers and manure under different agro-ecological conditions in Kenya. Agriculture, Ecosystems, and Environment 41, 241-252.
-
(1992)
Agriculture, Ecosystems, and Environment
, vol.41
, pp. 241-252
-
-
Smaling, E.M.A.1
Nandwa, S.M.2
Prestele, H.3
Roetter, R.4
Muchena, F.N.5
-
35
-
-
0003806506
-
Exploratory Soil map and agro-ecological zones map of Kenya, scale 1:1 000 000
-
Report E1, Kenya Soil Survey, Nairobi
-
Sombroek, W.G., H.M.H. Braun and B.J.A. van der Pouw, 1982. Exploratory Soil map and agro-ecological zones map of Kenya, scale 1:1 000 000. Report E1, Kenya Soil Survey, Nairobi.
-
(1982)
-
-
Sombroek, W.G.1
Braun, H.M.H.2
van der Pouw, B.J.A.3
-
36
-
-
0004245718
-
Assessment of soil nutrient depletion in Sub-Saharan Africa: 1983-2000
-
Winand Staring Centre report 28. Winand Staring Centre, Wageningen, The Netherlands
-
Stoorvogel, J.J., and E.M.A. Smaling, 1990. Assessment of soil nutrient depletion in Sub-Saharan Africa: 1983-2000. Winand Staring Centre report 28. Winand Staring Centre, Wageningen, The Netherlands.
-
(1990)
-
-
Stoorvogel, J.J.1
Smaling, E.M.A.2
-
37
-
-
34250075689
-
Calculating soil nutrient balances in different scales. I. Supra-national scale
-
Stoorvogel, J.J., E.M.A. Smaling and B.H. Janssen, 1993. Calculating soil nutrient balances in different scales. I. Supra-national scale. Fertilizer Research 35, 227-235.
-
(1993)
Fertilizer Research
, vol.35
, pp. 227-235
-
-
Stoorvogel, J.J.1
Smaling, E.M.A.2
Janssen, B.H.3
-
38
-
-
28844482609
-
Exploring diversity in soil fertility management of smallholder farms in western Kenya. I. Heterogeneity at region and farm scale
-
Tittonell, P., B. Vanlauwe, P.A. Leffelaar, E.C. Rowe and K.E. Giller, 2005a. Exploring diversity in soil fertility management of smallholder farms in western Kenya. I. Heterogeneity at region and farm scale. Agriculture, Ecosystems and Environment 110, 149-165.
-
(2005)
Agriculture, Ecosystems and Environment
, vol.110
, pp. 149-165
-
-
Tittonell, P.1
Vanlauwe, B.2
Leffelaar, P.A.3
Rowe, E.C.4
Giller, K.E.5
-
39
-
-
28844459651
-
Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status
-
Tittonell, P., B. Vanlauwe, P.A. Leffelaar, K.D. Shepherd and K.E. Giller, 2005b. Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status. Agriculture, Ecosystems and Environment 110, 166-184.
-
(2005)
Agriculture, Ecosystems and Environment
, vol.110
, pp. 166-184
-
-
Tittonell, P.1
Vanlauwe, B.2
Leffelaar, P.A.3
Shepherd, K.D.4
Giller, K.E.5
-
40
-
-
33748470432
-
Exploring diversity of crop and soil management within smallholder African farms: A dynamic model for simulation of N balances and use efficiencies at field scale
-
Agricultural Systems: in press
-
Tittonell, P., P.A. Leffelaar, B. Vanlauwe, M.T. van Wijk and K.E. Giller, 2006. Exploring diversity of crop and soil management within smallholder African farms: A dynamic model for simulation of N balances and use efficiencies at field scale. Agricultural Systems: in press.
-
(2006)
-
-
Tittonell, P.1
Leffelaar, P.A.2
Vanlauwe, B.3
van Wijk, M.T.4
Giller, K.E.5
-
41
-
-
0032434012
-
Monitoring nutrient flows and economic performance in African farming systems (NUTMON): II. Tool development
-
Van den Bosch, H., A. De Jager and J. Vlaming, 1998a. Monitoring nutrient flows and economic performance in African farming systems (NUTMON): II. Tool development. Agriculture, Ecosystems & Environment 71, 49-62.
-
(1998)
Agriculture, Ecosystems & Environment
, vol.71
, pp. 49-62
-
-
Van den Bosch, H.1
De Jager, A.2
Vlaming, J.3
-
42
-
-
7744239523
-
Manual to the NUTMON Methodology
-
Alterra/LEI, Wageningen University, The Netherlands
-
Van den Bosch, H., J. Vlaming, M.S. van Wijk, A. de Jager, A., Bannink and H. Van Keulen, H., 2001. Manual to the NUTMON Methodology. Alterra/LEI, Wageningen University, The Netherlands.
-
(2001)
-
-
Van den Bosch, H.1
Vlaming, J.2
van Wijk, M.S.3
de Jager, A.4
Bannink, A.5
Van Keulen, H.H.6
-
43
-
-
0032435091
-
Monitoring nutrient flows and economic performance in African farming systems (NUTMON): III. Monitoring nutrient flows and balances in three districts in Kenya
-
Van den Bosch, H., J.N. Gitari, V.N. Ogaro, S. Maobe and J. Vlaming, 1998b. Monitoring nutrient flows and economic performance in African farming systems (NUTMON): III. Monitoring nutrient flows and balances in three districts in Kenya. Agriculture, Ecosystems & Environment 71, 63-80.
-
(1998)
Agriculture, Ecosystems & Environment
, vol.71
, pp. 63-80
-
-
Van den Bosch, H.1
Gitari, J.N.2
Ogaro, V.N.3
Maobe, S.4
Vlaming, J.5
-
44
-
-
33744931880
-
Popular myths around soil fertility management in sub-Saharan Africa
-
Vanlauwe, B., and K.E. Giller, 2006. Popular myths around soil fertility management in sub-Saharan Africa. Agricultural, Ecosystems and Environment 116: 34-46.
-
(2006)
Agricultural, Ecosystems and Environment
, vol.116
, pp. 34-46
-
-
Vanlauwe, B.1
Giller, K.E.2
-
45
-
-
0035712410
-
Nutrient dynamics in a climbing bean and sorghum crop rotation in the central African highlands
-
Wortman, C.S., 2001. Nutrient dynamics in a climbing bean and sorghum crop rotation in the central African highlands. Nutrient Cycling in Agroecosystems 61, 267-272.
-
(2001)
Nutrient Cycling in Agroecosystems
, vol.61
, pp. 267-272
-
-
Wortman, C.S.1
|