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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.

2001

Abstract

The cherry cultivars "Van", "Ulster" and "Burlat" grafted on the rootstocks seedling, `Colt" and `Gisela 5" were evaluated for important fruit quality parameters at Ullensvang Research Centre during the 1998 season. The largest fruit size was found on the cultivar/rootstock combinations `Van"/seedling, `Ulster/Colt" and `Burlat/Gisela 5". Other parameters like fruit firmness, stone weight, soluble solids, titratable acids and pH of the fruit juice were registered as well.

2000

Abstract

The effect of six cropping systems (rotations of either mainly arable or mainly forage crops) on the soil N content was evaluated using mass balances of total N, and the usefulness of such N balances to predict N runoff (total N losses via drainage and surface water) was investigated. All the arable cropping systems resulted in a net reduction in the calculated soil N pool, and the reduction increased with decreasing N input. Only the forage system with the highest N input maintained the initial soil N content. Mass N balances were found to be a useful tool for predicting N runoff, as up to 87% of the variation in N runoff could be explained.

1999

Abstract

The study examines the economics of combined milk and meat production as an alternative to the current specialised milk production on Norwegian goat. The reasons for the study are 1) to increase goat farm incomes,2) to improve the annual distribution pattern of goat milk and 3) to reduce negative publicity of farmers killing surplus goat kids just after birth. The most promising management practice would be to change the time of kidding from February to late April or May, combined with suckling the kids during the daytime until August. The kids are to be slaughtered in August in order to utilise the summer grazing period and market the kids the month before start of the lamb slaughter season. While the kids are being suckled, the does are milked once per day and after weaning the does are milked twice a day, thereby increasing milk deliveries during autumn and winter when milk prices are higher. A discussion of how the natural conditions and the Norwegian agricultural policy contribute to the results increases the value of the study.