Soil Fertility and Fertilizers |
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absorbed acid soils activity adsorbed adsorption Al3+ alfalfa Ammonium Ammonium phosphate Ammonium polysulfide amounts anhydrous anion application availability Ca² Ca2+ CaCO3 calcareous soils cations chelates chemical clay minerals compounds concentration corn crop decreases deficiency denitrification diffusion effect exchange fertilizer FIGURE fixation grain H₂O hydrolysis immobilization important increase influence inorganic ions kaolinite kg/ha lb/a leaching leaf legume levels lime loam losses mass flow Mg2+ microbial micronutrients microorganisms montmorillonite N₂ neutral NH4+ nitrification nutrition occurs organic matter oxides phosphate photosynthesis plant growth plant nutrients plant roots Potassium precipitation production protein quantity ratio reactions reduced release residues response Rhizobia salts soil moisture soil pH Soil Sci soil solution soil test soluble sorghum SOURCE soybeans sulfate supply Table temperature tillage tion tissue toxicity uptake urea urease volatilization yield