Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
1999
Sammendrag
This report was written in connection with the preparations of the Norwegian authorities for the new round of WTO negotiations on further liberalization of world trade. The report surveys the natural conditions in Australia, France, New Zealand, Norway and the USA, and studies their influence on agriculture, e.g., on farm size, farmland distribution, types of production and production costs. However, it is not easy to limit the analysis to merely the natural conditions for farming, since a number of other political, legal, economic, historic and cultural factors also determine the conditions for agriculture in a country. The report includes agroclimatic data such as length of growing-season, temperature sums, mean temperatures and mean precipitation. Not surprisingly, the climate in Australia and New Zealand is significantly different from the climate in Norway. In these two countries, low temperatures are not a major growth-limiting factor, as they are in (parts of) France, Norway and the USA. Especially in Australia, growth is mainly limited by too high temperatures, excessive radiation, evaporation and lack of rainfall. [...]
Forfattere
B.J. Stocks M.E. Alexander B.M. Wotton R.A. LanovilleSammendrag
Det er ikke registrert sammendrag
Sammendrag
In this paper we first discuss the consumption behaviour of Norwegian farm households. Then, possible consumption models are outlined and our data sample is described. In the next section we discuss the use of panel data methods to estimate our consumption function. Finally, the results from estimating a consumption function with the DPD computer program are discussed. The preliminary results indicate that the GMM estimation using the system estimator of Blundell and Bond (1998) may be superior to the other methods. The parameter of the lagged dependent variable is inside the limits indicated by the OLS and the within estimator. The second lag of the dependent variable is rejected as an instrument and there are strong indications of serial correlation. Later on, we have to transform the model to make the serial correlation disappear. In a later version of this paper we will test if the MPC is changing over time. We will also test if there are different effects from price- and production dependent agricultural income and other income.
Forfattere
Leif Aarvik Alf BakkeSammendrag
Presentasjon av sommerfuglmateriale fra lysfellefangster i Lierne og Namsos i 1996.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Tor Håkon Sivertsen Pavol Nejedlik Robert Oger Roland SigvaldSammendrag
The report is written by a working group of COST ACTION 711 `The operational applications of meteorology to agriculture, including horticulture". The report contains an overview and also a description of the most important data models of phenology and crop growth of wheat, barley and potato, and it contains a list of pest and disease models connected to the crops mentioned. Systems for gathering meteorological data and biological data to run the different models are discussed rather thoroughly, and the limitations of the existing models are also mentioned in this report.
Forfattere
T. H. Sivertsen P. Nejedlik R. Oger R. SigvaldSammendrag
Det er ikke registrert sammendrag
Forfattere
Gunnar Jansson P.H. StåhlSammendrag
Det er ikke registrert sammendrag
Forfattere
Gustav FystroSammendrag
Sluttrapport til Norges Forskningsråd for prosjektet "Tilpassa nitrogengjødsling i eng". Mineralisering av nitrogen er sentralt i prosjektet. Det er gjennomført felt- og laboratoreieforsøk. Rett generell gjødsling med nitrogen til eng, og justering av denne, er viktige mål.
Forfattere
Gustav FystroSammendrag
Kort presentasjon av prosjektet "Tilpasset nitrogengjødsling i eng