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Full-Text Articles in Physical Sciences and Mathematics
"Cosmic Spherules In Glaciogenic Sediments: An Update.", Karl Wirth, A.E. Funk, M.B. Ricke, L.B. Wallin, J.O. Annexstad
"Cosmic Spherules In Glaciogenic Sediments: An Update.", Karl Wirth, A.E. Funk, M.B. Ricke, L.B. Wallin, J.O. Annexstad
Karl Wirth
No abstract provided.
Soil Amino Acid Utilization Among Species Of The Cyperaceae: Plant And Soil Processes, Ted K. Raab, David A. Lipson, Steven K. Scmidt, Russ K. Monson
Soil Amino Acid Utilization Among Species Of The Cyperaceae: Plant And Soil Processes, Ted K. Raab, David A. Lipson, Steven K. Scmidt, Russ K. Monson
Ted K. Raab
Amino acids are released during the decomposition of soil organic matter and have been shown to be utilized as a nitrogen source by some non-mycorrhizal species in the family Cyperaceae (the sedge family). Twelve out of 13 Cyperaceae species examined in the current study were capable of absorbing soil amino acids in the non-mycorrhizal state. With two exceptions (two species in the genus Kobresia), species from subalpine or alpine habitats exhibited lower rates of total nitrogen uptake compared to species from more temperate habitats, which is possibly explained by lower growth rates in the alpine and subalpine species and a …