Films made of Ecoflex copolyester (BASF AG) offer good mechanical properties as well as a sufficiently low oxygen permeability in order to satisfy the requirements of stretch films used for silage bales. Films which are stabilised by carbon black also fulfil practically all these criteria. These two types of film were used to wrap silage bales which were then stored beneath a roof or outside, either on the meadow or on palettes. Degradation of the films was observed as early as after 20 to 80 days, depending on the manner of storage. On the one hand, the films were attacked from inside the bales, on the other, on the contact surface between the soil and the film. In order to use copolyester films for silage bales, degradation should be significantly slower. This can be achieved by adding an adhesive layer limiting degradation or by chemically modifying the films’ material.
Arbuscular mycorrhizal fungi are important for healthy soils and crops. A pan-European study shows that plant-protection products adversely affect these fungi, reducing their ability to supply plants with phosphorus via their roots.
A comparison of different methods of winter-wheat fertilisation with nitrogen showed that nitrogen surpluses can be significantly reduced by means of site-specific variable-rate nitrogen fertilisation.
Fabian Y., Roberti G., Jacot K., Gramlich A., Benz R., Szerencsits E., Churko G., Prasuhn V., Leifeld J., Zorn A., Walter T. (ꝉ), Herzog F.
Many tile drainage systems on arable land are in need of renewal. Cantons and stakeholders will now be given a decision-making tool enabling them to assess such areas in detail and to find sustainable solutions.