00657nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067082001700076111010000093245005600193260002100249300001100270440001400281650019200295Para_3420CHAP220125s1972    xx            000 0 und d  a201927  cCHAP  aPA 631.84 P3  aPanel on the use of isotopes for study of fertilizer utilization by legume crops (1971: Vienna)  aProceedings  /c International Atomic Energy Agency  aVienna  :b IAEA  a214 p.  aIAEA; 149  aFertilizantes nitrogenados  Energía atómica en agricultura  Trazadores radiactivos  Fertilizantes x Efecto en leguminosas I. Use of isotopes for study of fertilizer utilization by...