Abstract
The legume—grain crop sequences were commonly used throughout the beginning of this century. The practice of including forage legumes in crop rotations declined due to the increased availability and relatively low cost of nitrogen fertilizers (CAST, 1980; Hesterman et al., 1986). There is renewed interest among producers in using forage legumes as inexpensive sources of N in crop production due to the increasing price of N fertilizer (Heichel and Barnes, 1984) and to the increasing interest in organic farming techniques.
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Oleszek, W., Jurzysta, M., Górski, P.M. (1992). Alfalfa saponins — the allelopathic agents. In: Rizvi, S.J.H., Rizvi, V. (eds) Allelopathy. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2376-1_11
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