Nutrient flux in litter and surface soil after nitrogen and phosphorus fertilization

Journal Article · Wed Nov 01 04:00:00 EST 1978 · Soil Sci. Soc. Am. J.; (United States)

DOI:https://doi.org/10.2136/sssaj1978.03615995004200060028x· OSTI ID:5945832

Kelly, J M; Henderson, G S

The effect of urea and concentrated superphosphate additions on the movement of N, P, K, and Ca from the litter and top 10 cm of the mineral soil via the soil solution was evaluated in an upland oak forest using tension lysimeters. The range in total flux values for each element over the study period were: N 24.8 to 1145.3; P 2.0 to 633.3; Ca 70.6 to 553.1; and K 49.5 to 94.0 kg/ha in response to various combinations of N and P fertilizer addition at levels of 0, 550, and 1100 kg/ha N and 0, 275, and 550 kg/ha P. Nitrogen fertilizer addition significantly increased the flux of N and K while reducing the flux of P and Ca. Phosphorus fertilizer addition significantly increased N, P, Ca, and K fluxes. Solubilization of organic matter and the formation of insoluble calcium ammonium phosphate were important processes regulating the flux of N, P, Ca, and K.

• Research Organization: Tennessee Valley Authority, Muscle Shoals, AL
• OSTI ID: 5945832
• Journal Information: Soil Sci. Soc. Am. J.; (United States), Journal Name: Soil Sci. Soc. Am. J.; (United States) Vol. 42:6; ISSN SSSJD
• Country of Publication: United States
• Language: English

Related Subjects

510100* -- Environment
Terrestrial-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKALI METALS
ALKALINE EARTH METALS
AMIDES
BIOLOGICAL MATERIALS
CALCIUM
CARBONIC ACID DERIVATIVES
CHEMISTRY
CRYOGENIC FLUIDS
ELEMENTS
FERTILIZERS
FLUIDS
FOREST LITTER
METALS
NITROGEN
NONMETALS
NUTRIENTS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS
PHOSPHORUS COMPOUNDS
POTASSIUM
SOIL CHEMISTRY
SOILS
SUPERPHOSPHATES
UREA