Nutrient recommendations for vegetables take into account the nutrient demand of the crop and soil analysis. Different methods are used to assess the nitrogen availability in the soil which varies in space and time. The nitrogen demand of vegetables is higher than the nitrogen uptake particularly on fields with a high level of productivity. To optimise and control nutrient applica-tion, the total amount of fertiliser applied on the whole farm is assessed. The total amount of nitrogen and phosphorous applied may not exceed 10 % of the amount recommended. Biological farms use the same amount of phosphorous, the amount of nitrogen is significantly lower compared to integrated farms. Different factors affecting the demand of nitrogen nutrition of vegetables are well known, the significance of other factors is not so well established.<br><br>There is a gap between knowledge and the implementation of this knowledge into practical fertiliser recommendations. The govern-mental authority responsible for the protection of the quality of the groundwater has establisheda program to further reduce the nitrate and phosphorous content of the drinking water by a package of measures restricting farming activities severely.
Tall oat grass and golden oat grass are typical hay-meadow grasses that are also suitable for forage mixtures. Of the four tall and three golden oat grass varieties tested, only one new variety of tall oat grass is likely to make it onto the List of Recommended Varieties.
Stevenel P., Wendling M., Brabant C., Suss H., Savoyat C., Dierauer H., Mascher F., Charles R.
FiBL and Agroscope investigated bread wheat varieties to determine their yield and quality stability. The results show that the choice of variety must be adapted to the site and that high yield potential does not go hand-in-hand with a high protein content.
Adapted and high-yielding varieties of forage plants are important for Switzerland as a grassland country. Hybrid ryegrass is a versatile forage grass that, thanks to breeding advances, has become even more persistent, disease-resistant and high-yielding over the past 30 years.