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Uptake and partitioning of nitrogen in nitrogen-limited barley : dependence of age and genotype
Variability of molecular nitrogen fixation and its dependence on plant genotype and diazotroph strains
Accumulation and translocation of nitrogen in cultivars of winter wheat with different demands for nutrition
Responses to phosphate fertilizers of differing solubilities by white clover cultivars
Suitability of varieties of winter wheat in low external input systems in West Germany
Investigations on the nutrient uptake efficiency of different grape root-stock species and cultivars
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