Plant and Soil · 1993 · 70 citations · 47 references
AgricultureAgronomySoil SciencesAlley CroppingNutrient CyclingSoil ScienceNitrogen CycleNitrogen CyclingNitrogen ManagementNitrogen NutritionPlant-nutrient CyclingSoil Nutrient CyclingNitrogen Cycling DynamicsNitrogen Fertility ManagementNitrogen Uptake DynamicsRhizosphere Nitrogen CyclingSemi-arid ClimateSoil Nitrogen DynamicsSoil Nitrogen Temporal Dynamics
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Methods of soil analysis. Part 2. Chemical and microbiological properties.
A. L. Page · 1982 · 13K citations