TY - BOOK ED - Proceedings of a symposium sponsored by the National Fertilizer Development Center of the Tennessee Valley, American Society of Agronomy, Crop Science Society of America and Soil Science Society of America / 25-27 May. 1982. TI - Nitrogen in crop production SN - 0-89118-081-8 U1 - 581.13 PY - 1984/// CY - U.S.A. PB - American Society of AgronomyCrop Science Society of AmericaSoil Science Society of America KW - Nitrogeno KW - Asimilación KW - cosechas KW - Fertilización KW - nitrógeno KW - Fisiología vegetal KW - niotrógeno N1 - BIBLIOTECA: UACH-FACIATEC ER -