00449nam a2200145Ia 4500008004100000082002000041100002000061245003000081260004200111300001000153650001300163942000700176952010300183999001700286140113s9999 xx 000 0 und d a631(047.1 L2.24 a" Brady, N. C." aAdvances in agronomy v.24 b"New York : Academic Press Inc, 1972" a450p. aAgronomy cBK 00104070aKYMbKYMd2014-01-13l0o631(047.1 L2.24pKBK1595r2014-01-13 00:00:00w2014-01-13yBK c62653d62653