Concordia

How reliable are modern methods of measuring nitrogen fertilisation in vegetable production? Field trials show that established methods are still more effective – and reveal scope for reduced fertilisation without yield loss.

Grass grows on around 70% of Switzerland’s utilised agricultural area. Yields on these grasslands vary significantly. For the first time, an Agroscope study has calculated these yields in a spatially differentiated manner, making digital maps available for planning and farm extension services.

In viticulture, application of organic foliar fertiliser at the time of veraison does little to correct a deficiency of yeast-assimilable nitrogen in the must. Applying foliar mineral nitrogen remains a more effective approach.