Claim · model-written summary
Considerable leaching or transfer of nitrogen, phosphorus, magnesium and potassium occurs in the standing crop before litter deposition.
- Taxon
- prairie bluesteme0
- Organ / stage
- standing crope1
- Compound
- nitrogen, phosphorus, magnesium, and potassiume1
- Outcome
- leaching or transfer of various constituentse1
- Direction
- occurse1
Not reportedMaterialGeneInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Verbatim
e0“Changes in mineral composition were observed for current growth and standing crop of prairie bluestem, Andropogon spp.”
e1“Considerable leaching or transfer of various constituents, especially nitrogen, phosphorus, magnesium, and potassium, occurs in the standing crop prior to deposition in the litter”
Title
Dry Matter Losses and Mineral Leaching in Bluestem Standing Crop and Litter
Melvin R. Koelling; C. L. Kucera Ecology 1965. doi:10.2307/1934887
Other claims from this paper (9)
- Observation Potassium showed a 96% turnover in the vegetation before the end of the first year.
- Observation Silica showed a distinct rising trend with age of the standing crop.
- Observation Silica accounted for a major portion of total mineral oxide through the litter phase.
- Intervention effect Dry matter losses in litter were about 50% more rapid for foliage than for flower stalks.
- Observation Total ash after 2 years of litter decomposition was approximately twice the initial level in foliage and flower stalks.
- Observation Nitrogen percentage showed a decreasing trend in the standing vegetation during the first year.
- Observation Nitrogen levels increased on a dry weight basis during the litter phase.
- Association Nitrogen increase in litter relative to faster dry matter loss suggests a narrowing of the C/N ratio as decomposition progressed.
- Intervention effect Foliage from control plots had higher nitrogen concentrations than foliage from burned plots.