64 research outputs found

    The relationship of certain soil physical properties to root distribution, nutrient absorption, and yield of corn and soy beans planted in three row arrangements

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    This investigation was conducted for two seasons (1972 and 1973) on a Sequatchie loam soil at the Plant Science Farm, Knoxville, Tennessee. The effect of bulk density and large pore space on root distribution, nutrient absorption, and yield of corn and soybeans planted at different row arrangements was studied. Bulk density, large pore space and root volume from soil core samples taken at different distances from the reference row at different times were measured. The amount of plant roots per unit volume of soil gradually increased as the season progressed but decreased late in the season in both corn and soybeans. Root volume data from samples taken at comparable distance from the reference row showed that row arrangement had no effect on root volume for corn and soybeans during both years. Higher bulk density and smaller percentage of large pore space at the 6-12-inch depth generally impaired root penetration by soybean plants, but had less effect on root penetration by the corn plants. The root volume in the surface soil was generally higher close to the row and decreased gradually as the distance from the row increased. Above ground plant samples taken at different times during the growing season were analyzed for their concentration of N, P, K, Ca, and Mg. Generally the nutrient percentages in the above ground corn plants were high early in the season and decreased as the season progressed except for P which was high early in the season, decreased up to 60 days, and then leveled off in 1972 but increased to higher than the original levels in 1973. The nutrient percentage means for all row arrangements followed the same pattern and generally were not statistically different except for the period from tasseling to filling stage of growth in the 12-24 row arrangement in 1972. N, P, K, Ca, and Mg accumulation in pounds per acre gradually increased up to about 70 days (tasseling stage). During the ear development and filling stage of growth the amount of N, P, and K greatly increased while the increases in Ca and Mg were very small. In soybeans, N, P. K, Ca, and Mg percentages were higher in the early stages of growth. Percentage of N and P generally decreased for about the first 70 to 80 days after planting and then increased slightly while the percent of K decreased as the season progressed. Ca and Mg percentages tended to level off at a later stage of growth. The amount of N, P, K, Ca and Mg that accumulated in the above ground soybean plants increased gradually for about 70 days. After this period a large increase in content of N and K was observed while the increase of P, Ca and Mg was less pronounced. Root volume did not account for any yield differences among the row arrangements in corn and soybeans in either year. Corn at 17,424 plants per acre in 1972 produced a lower yield than 20,380 plants per acre in 1973. At the lower plant population in 1972, row arrangements did produce significantly different yields. However, at 20,380 plants per acre in 1973, row arrangement had no effect on corn yield. Irregular soybean plant distribution and large percentage of lodging occurred in 12 and 12-24 row arrangements which reduced the yield of these treatments and may have accounted for no yield differences among the row arrangements

    Seleção para cor de chips de batata com o uso de fitas indicadoras de glicose.

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    The Compact Linear Collider (CLIC) - 2018 Summary Report

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    The Compact Linear Collider (CLIC) - 2018 Summary Report

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    The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear e+ee^+e^- collider under development at CERN. Following the CLIC conceptual design published in 2012, this report provides an overview of the CLIC project, its current status, and future developments. It presents the CLIC physics potential and reports on design, technology, and implementation aspects of the accelerator and the detector. CLIC is foreseen to be built and operated in stages, at centre-of-mass energies of 380 GeV, 1.5 TeV and 3 TeV, respectively. CLIC uses a two-beam acceleration scheme, in which 12 GHz accelerating structures are powered via a high-current drive beam. For the first stage, an alternative with X-band klystron powering is also considered. CLIC accelerator optimisation, technical developments and system tests have resulted in an increased energy efficiency (power around 170 MW) for the 380 GeV stage, together with a reduced cost estimate at the level of 6 billion CHF. The detector concept has been refined using improved software tools. Significant progress has been made on detector technology developments for the tracking and calorimetry systems. A wide range of CLIC physics studies has been conducted, both through full detector simulations and parametric studies, together providing a broad overview of the CLIC physics potential. Each of the three energy stages adds cornerstones of the full CLIC physics programme, such as Higgs width and couplings, top-quark properties, Higgs self-coupling, direct searches, and many precision electroweak measurements. The interpretation of the combined results gives crucial and accurate insight into new physics, largely complementary to LHC and HL-LHC. The construction of the first CLIC energy stage could start by 2026. First beams would be available by 2035, marking the beginning of a broad CLIC physics programme spanning 25-30 years

    Les Poètes français de la Renaissance et Pétrarque, études réunies par Jean Balsamo, Genève, Droz, Textes et Travaux de la Fondation Barbier-Mueller pour l'Étude de la poésie italienne de la Renaissance n° 1/ T.H.R. n° CCCX- CIV, 2004

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    De Sauza Guillaume. Les Poètes français de la Renaissance et Pétrarque, études réunies par Jean Balsamo, Genève, Droz, Textes et Travaux de la Fondation Barbier-Mueller pour l'Étude de la poésie italienne de la Renaissance n° 1/ T.H.R. n° CCCX- CIV, 2004. In: Réforme, Humanisme, Renaissance, n°61, 2005. pp. 163-166

    La grivoiserie et ses enjeux dans Le Banquet des Chambrieres fait aux Estuves

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    De Sauza Guillaume. La grivoiserie et ses enjeux dans Le Banquet des Chambrieres fait aux Estuves. In: Réforme, Humanisme, Renaissance, n°66, 2008. pp. 53-69

    Jean Second, Œuvres complètes, tome I: Basiorum liber et Odarum liber

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    De Sauza Guillaume. Jean Second, Œuvres complètes, tome I: Basiorum liber et Odarum liber. In: Réforme, Humanisme, Renaissance, n°64, 2007. pp. 135-137
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