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القيود الموجودة: 19 للبحث عن: "nitrogen"

الترتيب حسب: المؤلف - العنوان - تاريخ النشر

• -- isotope studies on the nitrogen chain -- 1968 -- b
• editor j.a.lee smcneill i.h.rorison -- nitrogen as an ecological factor -- 1983 -- b
• j.m.lyons r.c.valentine d.a.phillips d.w.rains -- genetic engineering of symbiotic uitrogen fixation and conservation of fixed nitrogen -- 1981 -- b
• editor n.e.west john skujins -- nitrogen in desert ecosystems -- 1978 -- b
• ZUGRAVESCU,ION -- N-YLID CHEMISTRY -- 1976 -- B
• YOUSEF A.HAMDI KAISER NAGUIB AND HANA SLEW -- GENERA OF NITROGEN FIXING BLUE GREEN ALGAE COMMON IN ARAQI SOILS -- 1976 --
• -- isotope studies on the nitrogen chain -- 1968 -- b
• editor j.a.lee smcneill i.h.rorison -- nitrogen as an ecological factor -- 1983 -- b
• j.m.lyons r.c.valentine d.a.phillips d.w.rains -- genetic engineering of symbiotic uitrogen fixation and conservation of fixed nitrogen -- 1981 -- b
• editor n.e.west john skujins -- nitrogen in desert ecosystems -- 1978 -- b
• ZUGRAVESCU,ION -- N-YLID CHEMISTRY -- 1976 -- B
• YOUSEF A.HAMDI KAISER NAGUIB AND HANA SLEW -- GENERA OF NITROGEN FIXING BLUE GREEN ALGAE COMMON IN ARAQI SOILS -- 1976 --
• YOUSEF A.HAMDI KAISER NAGUIB AND HANA SLEW -- GENERA OF NITROGEN FIXING BLUE GREEN ALGAE COMMON IN ARAQI SOILS -- 1976 --
• EDITOR BY:Y.A. HAMDL H.A. AL HADETHI AMIRA EL-TAI -- DENSITY OF CERTAIN NITROGEN-FIXING ORGANISERS IN SOIL OF NORTHEM IRAQ -- 1976 -- B
• -- protein and nonprotein nitrogen for ruminats -- 1977 -- b
• editor f.l.riley -- progress in nitrogen ceramics -- 1983 -- b
• EDITOR BY SHAM GOYAL AMARJIT BASRA -- ENHANCING THE EFFICIENCY OF NIHCOGEN UTILIZATION IN PLANTS -- 2005 -- B
• EDITOR BY SHAM GOYAL AMARJIT BASRA -- ENHANCING THE EFFICIENCY OF NIHCOGEN UTILIZATION IN PLANTS -- 2005 -- B
• EDITOR BY SHAM GOYAL AMARJIT BASRA -- ENHANCING THE EFFICIENCY OF NIHCOGEN UTILIZATION IN PLANTS -- 2005 -- B

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