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International Journal of Agricultural Sustainability

Volume 3, Number 3

Robert Tripp

The Performance of Low External Input Technology in Agricultural Development: A Summary of Three Case Studies.......143

Oluyede Clifford Ajayi

Biological Capital, User Costs and the Productivity of Insecticides in Cotton Farming Systems in Sub-Saharan Africa.......154

D.D. Onduru, A. De Jager and G.N. Gachini

The Hidden Costs of Soil Mining to Agricultural Sustainability in Developing Countries: A Case Study of Machakos District, Eastern Kenya.......167

M.H. Hoang Fagerström, Tran Yem, Pham Quang Ha, Vu Dinh Tuan, C. Valhed, K. Kvamme and Y. Nyberg

Characterisation and Diagnosis of Rural–Urban Interface Farming in the Tu Liem and Thanh Tri Districts of Hanoi City, Vietnam.......177

A. De Jager, H. van Keulen, F. Mainah, L.N. Gachimbi, J.K. Itabari, E.G. Thuranira and A.M. Karuku

Attaining Sustainable Farm Management Systems in Semi-Arid Areas in Kenya: Few Technical Options, Many Policy Challenges.......189

Willem A. Stoop and Tim Hart

Research and Development Towards Sustainable Agriculture by Resource-Poor Farmers in Sub-Saharan Africa: Some Strategic and Organisational Considerations in Linking Farmer Practical Needs with Policies and Scientific Theories.......206