Four maize cropping systems 1990-1993: ecology and economics of the systems - a balance
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Published in Agrarforschung (Bern) (01.09.1995)
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Published in Agrarforschung (Bern) (01.09.1995)
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Realization of forestry planning
Jaeggi, W
Published in Schweizerische Zeitschrift fuer Forstwesen. Journal Forestier Suisse (Switzerland) (01.06.1988)
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Published in Schweizerische Zeitschrift fuer Forstwesen. Journal Forestier Suisse (Switzerland) (01.06.1988)
Conference Proceeding
Influence of crop rotation, fertilizer and herbicide treatments on the maintenance of long-term soil fertility. 2. Comparison of changes in biological properties of soil fertility after one rotation of five years. [German
Maillard A, Keller E.R, Jaeggi W
Published in Schweizerische landwirtschaftliche Forschung. La Recherche agronomique en Suisse (1983)
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Published in Schweizerische landwirtschaftliche Forschung. La Recherche agronomique en Suisse (1983)
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