Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2018
Authors
A. Pérez-Sierra V. Rafiei C. Olivares H. Rees S. van der Linde N. Keča K. Schwanda Venche Talgø B. B. LandaAbstract
No abstract has been registered
Authors
Klaus Mittenzwei Wolfgang BritzAbstract
Norway maintains a complex system of activity or type specific coupled paymentswhich account for a large share of farm income. Most of the payment rates arenegatively related to farm size and are higher in remote areas compared to centralregions. We present and use a newly developed recursive-dynamic multi-commoditymodel (Agrispace) with CES production functions depicting regional farm clustersderived from the full farm population. Using this model, we simulate impacts ofcurrent and alternative subsidy policies on production, prices, input use, incomeand farm structural change. Mapping cluster results to each farm along with beha-vioural rules allows estimation of individual profits and farm exits. Our results indi-cate that, in the short run, the current policy regime seems to support the policyobjective of maintaining a variety of farms in all parts of Norway. In the long run,farm structural change is less affected by a policy reform that leaves total supportlevels unchanged.
Authors
Holger Lange Sebastian Sippel Britta Aufgebauer Michael Hauhs Christina Bogner Henning MeesenburgAbstract
No abstract has been registered
Authors
Anush Panosyan Martina Paponov Michel J. Verheul Ivan PaponovAbstract
No abstract has been registered
Authors
Arne StensvandAbstract
No abstract has been registered
Authors
Inge Stupak Tat Smith Nicholas Clarke Teodorita Al-Seadi Lina Beniušienė Niclas Scott Bentsen Quentin Cheung Virginia Dale Jinke van Dam Rocio Diaz-Chavez Uwe Fritsche Martyn Futter Jianbang Gan Kaija Hakala Thomas Horschig Martin Junginger Yoko Kitigawa Brian Kittler Keith Kline Charles Lalonde Søren Larsen Dagnija Lazdina Thuy P. T. Mai-Moulin Maha Mansoor Edmund Mupondwa Shyam Nair Nathaniel Newlands Liviu Nichiforel Marjo Palviainen John Stanturf Kay Schaubach Johanny Arilexis Perez Sierra Vita Tilvikiene Brian Titus Daniela Thrän Sergio Ugarte Liisa Ukonmaanaho Iveta Varnagyrite-Kabasinkiene Maria WellischAbstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
We investigated whether diversification and/or structural change would improve Norwegian agriculture. Using a flexible technology approach to account for different technologies, we assessed economies of scope and scale of dairy and cropping farms, including regional differences. We fitted translog cost functions to farm-level panel data for the period 1991–2014. We found both economies of scope and scale on the farms. Dairy farms have an economic incentive to integrate dairying with cropping in all regions of Norway, and vice versa. Thus, policy makers should eschew interventions that inhibit diversification or structural change and that increase the costs of food production.
Authors
Volkmar Timmermann Mari Mette Tollefsrud Halvor Solheim Isabella Børja Nina Elisabeth Nagy Ari HietalaAbstract
No abstract has been registered
Abstract
In recent years, rising competition for water coupled with new environmental regulations has exerted pressure on water allocations for turfgrass irrigation. In this article, we reviewed published scientific and industry evidence on the agronomic and environmental impacts of turfgrass irrigation using a robust systematic review methodology. Our focus was on the links between (i) irrigation management (amount and frequency), (ii) agronomic responses to irrigation (turf quality, growth rates and rooting) and (iii) environmental impacts (nitrogen leaching). Based on an initial screening of 653 studies and data extracted from 83 papers, our results show that in most cases, under moderate levels of deficit irrigation (50%–60% of actual evapotranspiration), turf quality can be maintained at an acceptable level but with lower water consumption compared to irrigating back to field capacity. Irrigation beyond field capacity was found to increase the risk of nutrient leaching. However, evidence also showed that the concentration and total loss of urn:x-wiley:09312250:media:jac12265:jac12265-math-0001 in leachate were influenced more by nitrogen (N) rates, soil characteristics, turfgrass species and turfgrass growth rates than by irrigation practices. Our analyses suggest that turfgrass irrigation should be scheduled to apply water at moderate levels of deficit irrigation, sufficient to maintain turfgrass quality but limited to promote a deep and extensive rooting system. The findings provide new insights and valuable evidence for both scientists and practitioners involved in turfgrass research and management.