European Journal of Agronomy
European Journal of Agronomy > 1998 > 9 > 2-3 > 189-202
European Journal of Agronomy > 1998 > 9 > 2-3 > 173-188
European Journal of Agronomy > 1998 > 9 > 2-3 > 189-202
European Journal of Agronomy > 1998 > 9 > 2-3 > 173-188