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Showing 1 to 20 of 53 for “"soil bulk density"”.
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Comparison of Soil Bulk Density After Poultry Litter Application
… the effects of poultry litter application on soil bulk density. A randomized split block design was used for this study. The soil was a Crider silt loam (Typic Paleudalf). Poultry litter treatments were compared with inorganic fertilizers. The same basic fertility treatments were applied in …
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Tillage effects on soil-water-air matrix and prediction of soil bulk density from cone index data
… increased production costs and loss of the soil and chemicals that are washed from the farmlands. Even though no-till farming systems can increase farm profit and reduce environmental degradation, soil compaction can negate the advantages of no-till farming when no-till systems are used …
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Influence of soil bulk density and matric potential on relative gas diffusivity and urea/nitrate-derived N₂O and N₂ losses
Soil compaction is a common problem, particularly when forages are grazed in winter. High animal stocking rates result in increased soil bulk density (ρb), increases in water‐filled pore space (WFPS) and reduced gas diffusion into and out of the soil. These changes in soil physical properties …
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Ecological Sustainability of Winter Harvesting in the Duck Mountain Provincial Park, SK: The Effects of Skidder Traffic, Slash Loading, and Cumulative Effects on Soils and Aspen Regeneration
… Systems (GIS). Based on this information, soil bulk density and early sucker growth was measured to assess the effects of winter harvesting. Soil bulk density increased significantly following 1-5 skidder passes (1.39 g cm-3) compared to unharvested controls (1.29 g cm-3) but remained …
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Topdressing and aerification programs on creeping bentgrass fairways
… effect that these two cultural practices have on soil physical properties have not been fully assessed. The first objective of this study was to determine the optimum timing of topdressing and aerification for golf course fairways. The second objective was to determine if varying schedules of …
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Use of herbicides, tillage, and grazing cattle for establishment of corn in rotation with alfalfa and rye
… increased (P<0.05) corn plant populations and soil bulk density compared to shorter grazing periods. Grazing prior to rye jointing increased (P <0.05) soil bulk density and corn plant populations, and decreased (P<0.05) rye biomass compared to no spring grazing. Autumn disking decreased …
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The role of living plant roots and cattle manure as a soil amendment in the alleviation of compacted coal mine soils
… activities change the physical nature of the soil which results in soil compaction. In mine soils, compaction is of great importance in plant growth and the environment because its high levels may adversely result in the degradation of soil structure, reduced nutrient distribution and reduced …
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Variabilidade espacial de atributos físicos em latossolo amarelo de área experimental
Knowledge of the variability of soil properties constitutes an important tool that we can employ a more appropriate management. The objective of this study was to investigate the spatial variability of soil physical properties in the area of production under experimental Oxisol. The study was …
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No-Till Tomato Production
… erosion rates and diminishes the quality of soils but has traditionally been a way to manage weeds and prepare a seedbed. No-till vegetable production can ameliorate the ill-effects of tillage in an economically effective way but has not been studied much in California. The objective of this …
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Switchgrass Cultivar, Harvest Frequency, Fertilizer Source, and Irrigation Effects on Near-Surface Soil Properties in West-Central Arkansas
… management combinations on near-surface soil properties. The objective of this research was to determine the residual near-surface soil property effects of three years (2008 to 2011) of consistent management combinations to maximize switchgrass biomass production, including cultivar …
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Soil compaction caused by timber harvesting in central Appalachian hardwood forests
… were examined to determine the amount of soil compaction associated with each harvest type. A manual system of chainsaw and cable skidder, along with a mechanized system consisting of feller-buncher and grapple skidder were monitored in two central Appalachian hardwood forest sites. …
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Soil Buoyancy as a Potential Indicator of Hurricane Susceptibility in Louisiana Marshes
… shows that freshwater marsh with organic soils experience increased destruction during hurricanes compared to other marsh. A relevant question surfaces, do some restoration projects create marsh similar to marshes that are more susceptible to hurricane damage. This study analyzes soil, …
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Demographics and ecology of an isolated population of the desert pocket mouse, Chaetodipus penicillatus sobrinus, in the Las Vegas Valley, Nevada
… Plant physiognomy (canopy cover and height), soil particle size (>2.0 mm), soil bulk density and distance to the nearest food resource (mesquite and acacia) significantly contributed to microhabitat selection within this study population.
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SOIL ORGANIC CARBON IN MID-ATLANTIC REGION FOREST SOILS: STOCKS AND VERTICAL DISTRIBUTION
Soil contains the largest terrestrial pool of organic carbon (Boschi et al., 2018) and temperate forest soils have been a major sink for atmospheric carbon; however, determining the size of the soil organic carbon stock can be problematic. Sampling practices vary for sampling depth, and determining …
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Site Quality Classification for Mapping Forest Productivity Potential on Mine Soils in the Appalachian Coalfield Region
… conventional mapping techniques using USDA soil series does not identify these critical soil property differences. This study was conducted to create a forest site quality classification system to be used to evaluate the potential productivity of specific tree species on mine soils. High …
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Distributed soil displacement and pressure associated with surface loading
Soil compaction is an inevitable result of agricultural practices. It alters physical properties of soil and tends to be undesirable as it adversely affects water and nutrient penetration. Furthermore, additional energy is spent to till the soil. Although a tremendous amount of research has been …
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Soil quality in long-term corn and soybean rotations
Although soil quality is significant for crop productivity, input efficiency, and environmental stewardship, the effect of cropping systems on soil quality has not been examined very thoroughly for most cropping systems in the Midwest. Thus the advantages and disadvantages associated with standard …
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Recovery of Channel Morphology and Benthic Macroinvertebrate Assemblages after Livestock Exclusion
… groundcover biomass, shrub crown volume, tree density and diameter, soil bulk density, and particle-size analysis. Benthic macroinvertebrates were collected with a D-frame dip net and quantified using the Virginia Stream Condition Index (SCI), and other benthic macroinvertebrate metrics. We …
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Quantification of short term interactions between soil and fungi
… and quantify short-term interactions between soil-borne fungi and soil. The quantification captures interactions between the ubiquitous soil saprotroph and plant pathogen <i>Rhizoctonia solani</i>, and a sandy loam soil, over a period of five days. The literature review provides evidence of …
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Multipass effects of wheel and track type vehicles on soil compaction
… moisture level, and their interactions on soil compaction. During the study two procedures commonly used for soil bulk density determination were also compared. Treatments at the following levels were applied: i) Soil moisture: Two levels ii) Vehicle type: wheel and track type iii) Traffic …
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