DRY HEAT PROCESS FOR DYEING AND PRINTING ORGANIC MATERIAL WHICH CAN BE DYED WITH CATIONIC DYESTUFFS von LAEPPLE A, DEFAGO R, HUGELIN B, SCHAFFLUETZEL P

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Soil organic matter content after eleven years of no-till and plough von Mueller, M, Schaffluetzel, R., Haute école suisse d'agronomie (HESA), Zollikofen (Switzerland), Chervet, A, Sturny, W.G, Zihlmann, U, Weisskopf, P

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Comparison of no-tillage and conventional plough tillage: a synthesis von Sturny, W.G, Chervet, A, Maurer-Troxler, C, Ramseier, L.,Office de l'agriculture du canton de Berne, Ruetti, Zollikofen (Switzerland), Mueller, M, Schaffluetzel, R, Richner, W, Streit, B, Weisskopf, P, Zihlmann, U

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Dynamics of nitrogen in the soil under no-tillage and ploughing von Zihlmann, U, Weisskopf, P. (Forschungsanstalt Agroscope Reckenholz-Taenikon ART, Zuerich (Switzerland)), Mueller, M, Schaffluetzel, R, Chervet, A, Sturny, W.G

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