00293nam a2200097Ia 4500008004100000082001600041100003800057245005700095260003500152300000800187140113s9999    xx            000 0 und d  a631.47   K7  a"Fried,Maurice and Broesmart, H."  aSoil-plant system in relation to inorganic nutrition  a1967bAcademic PresscNew York  a358