Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"nutrient analyses"”.
-
Understanding key factors influencing habitat quality for the endangered fountain darter (Etheostoma fonticola) in the Comal River.
… in Landa Lake: water column, sediment, and plant nutrient analyses, an herbivory and soil fertility experiment, and a spatial study of diel dissolved oxygen dynamics. Nutrient data were collected via water samples, nutrient diffusing substrata (NDS), sediment cores, and plant samples. The water …
-
The long-term effect of elevated CO₂ on grassland biomass production
… with distance from the CO₂ source, plant nutrient analyses (N and P), soil moisture contents (which could have an effect on plant wateruse efficiency) and carbon isotope discrimination values were determined at the three sites. The results show that elevated CO₂ had a significant effect on …
-
A preliminary study of the impacts of alien Acacia infestation (A saligna) on the relative rates of nitrogen and phosphorus cycling in Lowland Fynbos, southwestern Cape, South Africa
… soils. This favoured decomposition so that soil nutrient analyses showed enrichment of the soils (higher N and P) by the acacia infestation. Soil N and P mineralization was assayed using in situ incubations. Due to their higher soil total N concentrations, acacia soils showed greater inorganic N …
-
Nutrient dynamics of the forest floor in an Appalachian oak forest stand following clearcutting and whole-tree removal
Experiments were conducted to monitor nutrient dynamics in the forest floor of an upland Appalachian oak forest stands following clearcutting and whole-tree removal. Samples from the L, F, H, and A₁ layers were collected during June, August, and November of 1979 and 1980. Monthly litterfall was …
-
Ethnobotany of Namaqualand : the Richtersveld
… plants. Etic perspectives were obtained through nutrient analyses of edible plants and discussions and literary research on medicinal compounds in plants used in health care. It seems that the emic and etic perspectives about plants are not as distinct as was initially thought. Peoples' …
-
The effects of fertilisers, particularly foliar applied, on the potato plant's tolerance of attack by the potato cystnematodes, <i>Globodera rostochiensis</i> and <i>G. pallida</i>
… cited is a reduction in the uptake of the major nutrients nitrogen (N), phosphorus (P) and potassium (K). For the work described in this thesis, it was hypothesised that nutrient application via the foliar route could by-pass the PCN-damaged plant root system, ameliorate the PCN-induced nutrient …
-
Nutrient composition of foodstuffs available to wild lemurs living in the Analamazaotra Special Reserve, eastern Madagascar, and a survey of diets fed to captive black-and-white ruffed lemurs at United States zoological institutions
… in zoological parks often are based on the nutrient requirements of domestic animals or closely related exotic animals that have a history in captivity. In order to more fully understand the nutrient requirements of a species, studies of foraging behavior in the wild may be combined with …