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The significance of seeding is its ability to provide insights into complex fluid behaviors. These behaviors are otherwise invisible to the naked eye. Techniques like Particle Image Velocimetry (PIV) and Laser Doppler Velocimetry (LDV) rely on seeding to obtain accurate data. Seeding is an indispensable tool in experimental fluid mechanics. It ...
The depth and spacing is generally adjustable to accommodate a range of crops and the desired plant density; the degree of adjustability depends upon the chosen seeder. [3] In commercial production, precision seeding is an alternative to placing larger quantities of seed in a row, by dribbling seed or setting several seeds in each position.
Density calculation: The density of the canopy is calculated as the total number of seeds in the plot divided by the measured canopy area. Extrapolation: Using the data gathered from the samples collected, the seed density of the selected site can be extrapolated to estimate the seed bank size for the entire canopy.
The seeding particles are an inherently critical component of the PIV system. Depending on the fluid under investigation, the particles must be able to match the fluid properties reasonably well. Otherwise they will not follow the flow satisfactorily enough for the PIV analysis to be considered accurate.
A seeding rate of 3–4 kg/ha is recommended, with an row interval of 12 to 20 cm. [50] Seeding depth should not exceed 1 cm. With high seeding rates, these independently noncompetitive seedlings become competitive against weeds because of their density. The seedlings are early emerging and can withstand mild frosts in the spring.
1902 model 12-run seed drill Modern air seeder and hoe drill combination. The invention of the seed drill dramatically improved germination. The seed drill employed a series of runners spaced at the same distance as the plowed furrows. These runners, or drills, opened the furrow to a uniform depth before the seed was dropped.
Seed limitation, as well as seedbed deterioration, influences age structure in white spruce. Mast-year effects on the density of white spruce are long-lasting; 40 years after fire, mast-year fires still had 2.5 times more spruce regeneration than non-mast-year fires. [18]
Density logging is a well logging tool that can provide a continuous record of a formation's bulk density along the length of a borehole. In geology, bulk density is a function of the density of the minerals forming a rock (i.e. matrix ) and the fluid enclosed in the pore spaces.