Plant and Soil · 1985 · 13 citations · 11 references
AgriculturePlant BiologyPlant SciencesBacteriologyMicrobial EcologySoil MicrobiologyBiological Nitrogen FixationLegume InoculationNitrogen FixationSymbiotic Nitrogen FixationLegume NodulationNitrogen-fixing NodulesNodulation EfficiencyNodule Formation EfficiencySymbiotic Nitrogen Fixing Nodules
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Methods of soil analysis. Part 2. Chemical and microbiological properties.
A. L. Page · 1982 · 13K citations
Determination of Total Nitrogen in Plant Material<sup>1</sup>
D. W. Nelson, L. E. Sommers · Agronomy Journal · 1973 · 992 citations