Effect of soil moisture levels on nitrification.
D000641:Ammonia / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D009566:Nitrates / Q000096:biosynthesis; D012988:Soil Microbiology; D013997:Time Factors; D014867:Water
D009566:Nitrates; D014867:Water; D000641:Ammonia