Blar i Brage NMBU på forfatter "Johnsen, Fred Håkon"
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Does agricultural research reduce poverty among smallholder farmers? The case of Tanzania
Mwaseba, Dismas L.; Johnsen, Fred Håkon; Nchimbi-Msolla, Susan; Makungu, Patrick S.J. (Noragric Working Paper;35, Working paper, 2004-05)This article discusses poverty reducing effects of agricultural research, based on existing impact assessment studies from Tanzania. Agricultural research and extension in Tanzania has largely been a public undertaking, ... -
The economy of smallholder coffee: Evidence from Honde Valley, Zimbabwe
Shambare, Edinah; Johnsen, Fred Håkon; Rukuni, Mandivamba; Magadzire, Mutsai (Noragric Working Papers;7, Working paper, 1995-08) -
Norsk landbruksforskning : økonomiske analyser av tiltak mot fosforavrenning fra dyrket mark
Johnsen, Fred Håkon (Journal issue, 1990)Forurensende utslipp av næringssalter, spesielt fosfor, har ført til oppblomstring av alger i norske vannforekomster. En betydelig del av disse næringssaltene kommer fra landbruksarealer. Denne undersøkelsen består av ... -
Pesticide use in Nepal : health effects and economic costs for farmers in the central mid-hills
Atreya, Kishor (PhD Thesis;2013:20, Doctoral thesis, 2013)The thesis evaluates the negative effect that intensive agriculture brings, particularly in terms of the effect of pesticide use on human and on the environment, and the associated economic cost. Vegetable production is ... -
Technical efficiency in the spice based agroforestry sector in Matale, Sri Lanka
Lindara, Lindara M.J.K.; Johnsen, Fred Håkon; Gunatilake, Herath M. (Noragric Working Paper;34, Working paper, 2004-02)Spices constitute an important sub-sector of the economy of Sri Lanka. Most perennial spices are cultivated in agroforestry types of farming systems. The technical efficiency of spice based agroforestry systems was estimated ...