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 20 of 104 for “"soil nutrients"”.
-
Fire and periodical cicadas: impacts on soil nutrients and understory plant germination
… This study investigated the collective impact on soil composition and seed germination.</p> <p><strong>Methods </strong></p> <p>Through the soil analysis of cicada turrets, burned soil, and unburned soil, we hope to understand the composition of each soil type. Additionally, a 2 x 2 factorial …
-
Relationships among nutrient concentrations in corn (Zea mays L.) plants and extractable soil nutrients
… was conducted to determine relationships among nutrients in corn plants on soils with high yield potentials, to study the suitability of soil tests for estimation of micronutrient concentrations in plants, and to determine if B fertilization affects corn grain yields on selected Virginia soils. …
-
The Mitscherlich Equation as Applied to Express The Relationships Betweenplant Composition and The Soil Nutrients
Made available in DSpace on 2014-12-04T20:16:51Z (GMT). No. of bitstreams: 1 0016379.pdf: 5902760 bytes, checksum: b2b4ece3138c538fb7f046ef639fa6ab (MD5) Previous issue date: 1956
-
Impact of lifestock on vegetation and soil nutrients around water points in Highland Savanna rangelands, Namibia
… of livestock grazing on the vegetation and soil status was studied along a grazing gradient from watering points in the Neudamm high land savannah area, in both large and small livestock management system during wet season. Eight artificial points were selected for the study. A 600 m …
-
Influence of muskox carcasses on soil nutrients and vegetation in a High Arctic ecosystem in northeast Greenland
Hræ stórra spendýra geta haft veruleg áhrif á jarðveg og gróður þar sem þau falla til, einkum sökum aukinnar næringarefnaákomu. Slík áhrif eru sérstaklega mikilvæg í næringarsnauðum vistkerfum, s.s. freðmýrum, þar sem aukið framboð næringarefna getur haft langvarandi áhrif. Rannsóknir á þessum …
-
The effects of winter feeding systems on beef cow performance, soil nutrients, crop yield and system economics
… feeding system (drylot (DL)) on cow performance, soil nutrients, crop yield and system cost of production. Differences in BW (P
-
Using Arbuscular Mycorrhizae to Influence Yield, Available Soil Nutrients and Soil Quality in Conventional VS. Organic Vegetable Production
… if mycorrhizae improve yield, available soil nutrients and soil quality from two different fertilizer sources. Measurements were taken on yield, available soil nutrients, and soil quality in comparison of glomalin production and soil loss percentage. Two plant species were chosen, …
-
The Lasting Effects of Prescribed Fire and Harvesting on Forest Floor and Soil Nutrients in the Eastern Sierra Nevada Mountains
… little is known about their long-term effects on soil fertility, forest health, and water quality. The objective of this study was to quantify the lasting effects of prescribed fire and thinning on forest floor and soil nutrients approximately eight to nine years after a burn occurred within two …
-
Investigation of the relationships between biomass reduction, soil disturbance, soil nutrients and weed invasion in basalt plains native grassland remnants in Victoria, Australia
… between biomass reduction (burning and mowing), soil disturbance, soil nutrient levels (N, P and K) and weed invasion in native grassland remnants in Victoria, Australia. The study was carried out at three native grassland remnant sites, Derrimut grassland reserve, Laverton grassland reserve and …
-
Sustainable Agronomic Approaches for Reclaimed Wastewater Utilization: A Focus on Phosphorus Removal, Plant Tissue and Soil Nutrients Retention and Leachate Quality using Biochar and Nitrogen Application Rates under Different Forage Systems
… the potential benefits of utilizing biochar as a soil amendment to improve soil nutrient dynamics, enhance crop production, and contribute to sustainable agriculture. Biochar as a soil amendment has beneficial characteristics for improving soil water holding capacity, soil pH, cation exchange …
-
Implementation of Sustainable Management Practices at Two California Central Coast Vineyards and Their Effects on Soil Fertility
… Central Coast Vineyards and Their Effects on Soil Fertility Dawn Michelle Stimson “Sustainable agriculture” has gained increased popularity in recent years. This study was conducted to determine the effects of sustainable management practices on soil fertility at two California Central Coast …
-
Interactions between habitat and ungulate herbivory limit the spread of Ipomopsis aggregata (polemoniaceae)
… with disturbed and relatively nutrient poor soil. Using transplant experiments in 1992 and 2002, we show that higher levels of soil nutrients have an opposite effect on plants protected from herbivores and those exposed to herbivores, whereby protected plants show increased growth and fitness …
-
Ecosystem level impacts of annual and perennial N2-fixing invasive alien plants in the fynbos vegetation of South Africa
In the nutrient-poor fynbos, changes in soil nutrients can affect species composition and community structure. The N2-fixing ability of invasive alien plants, therefore, may have impacts on ecosystem and community functioning within the fynbos vegetation type. This study investigated changes in …
-
The effects of invasive slender false-brome (Brachypodium sylvaticum) on forest ecosystem function in western New York
… invasive and can impact ecosystems by changing soil, water, and nutrient dynamics. Disrupting these important ecosystem processes can facilitate further invasion. Slender false-brome (Brachypodium sylvaticum) is an exotic bunchgrass that is invasive in North America. Its encroachment into forest …
-
Characterization of ion-selective electrodes for an on-field soil nutrient analysis system
… established need for more careful application of soil nutrients and fertilizer to maximize crop yield for an ever-growing population. This study focuses on the manufacturing and characterization of ion-selective electrodes (ISEs) to further study if they could be used to reliably measure soil …
-
The Ecological Drivers and Consequences of Grass Silicon Accumulation
… At the individual plant scale, I found that soil silicon supply positively influences a broad range of plant morphological and physiological traits which emphasizes an important role of silicon in plant fitness (Chapter 1). In a common garden study of Serengeti grass species, I found that …
-
Approaches For Identifying And Characterizing Microplastics In Biosolids Using Density Separation And µFTIR Spectroscopy
… in agricultural settings to increase field and soil nutrients. At present, the research community is struggling to standardized analytical methods for addressing this emerging environmental concern. This research aims to address this lack of standardization by developing a protocol to extract, …
-
The Effect of Prescribed Burning on Soil Microbial Communities, Nutrients, and Carbon Dioxide Fluxes Under and Between Sagebrush Canopies in the Semi-Arid Rangelands of Northern Nevada
… to cause immediate and long-term changes to soil microbial communities, nutrient dynamics, and carbon dioxide (CO2) fluxes. These changes can have direct and indirect effects on soil biochemistry and respiration. The effects of fire on soil largely depend on time and seasonality, frequency, …
Page 1 of 6