Importance of the soil in the Burgrain farming-system trial
Zihlmann, U ; Jossi, W ; Oberholzer, H.-R ; Weisskopf, P ; Richner, W ; Krebs, H., Forschungsanstalt Agroscope Reckenholz-Taenikon ART, Zuerich (Switzerland) ; Tschachtli, R ; Nussbaumer, A
Comparative investigations of plant production on alternatively and conventionally cultivated winter wheat plots with special respect to soil fertility, crop yield, plant products, and trueness of seeds. [German
Method to estimate the symbiontically fixed nitrogen amount of feed and grain legumes as the basis of planning tools for a field and crop rotation-related nitrogen balance