1,720,957 research outputs found
Soil health assessment and cover crops for the Holland Marsh: Cover crops after carrot and onion harvest
No full textAs part of the "Soil health assessment and cover crops for the Holland Marsh" thesis research, three different field experiments - seed priming and transplant, cover crop after carrot and cover crop after onions - were done to assess cover crop establishment to reduce soil loss by wind erosion in muck soils after onion or carrot harvest. Canopy coverage and above ground biomass of cover crops were assessed including plant counts
Soil health assessment and cover crops for the Holland Marsh: Biofumigant cover crops
No full textAs part of the "Soil health assessment and cover crops for the Holland Marsh" thesis research, canopy coverage, plant counts, and biomass produced by biofumigant cover crops were assessed to evaluate their establishment. Additionally carrot yield in 2022 after biofumigant cover crops in 2021 was assessed
Soil health assessment and cover crops for the Holland Marsh: Petri dish trial
No full textAs part of the "Soil health assessment and cover crops for the Holland Marsh" thesis research, the petri dish trial was an experiment to assess effect of seed priming on early germination was conducted. Barley, oat, and triticale were either hydro-primed, osmo-primed, or non-primed and left to germinate at 5, 10, or 21 degrees. The experiment was conducted twice under similar conditions and there were four replications in each run
Soil Health Assessment and Cover Crops for the Holland Marsh
Get PDFRelated dataset: Pandey, Neem, 2024, "Soil health assessment and cover crops for the Holland Marsh: Petri dish trial", https://doi.org/10.5683/SP3/QEZPRZ, Borealis, V1.Related dataset: Pandey, Neem, 2024, "Soil health assessment and cover crops for the Holland Marsh: Plug tray trial for seed priming assessment", https://doi.org/10.5683/SP3/TACNET, Borealis, V1.Related dataset: Pandey, Neem, 2024, "Soil health assessment and cover crops for the Holland Marsh: Cover crops after carrot and onion harvest", https://doi.org/10.5683/SP3/X9S5EW, Borealis, V1.Related dataset: Pandey, Neem, 2024, "Soil health assessment and cover crops for the Holland Marsh: Soil health test results from lab", https://doi.org/10.5683/SP3/FHKKIF, Borealis, V1.Related dataset: Pandey, Neem, 2024, "Soil health assessment and cover crops for the Holland Marsh: Biofumigant cover crops", https://doi.org/10.5683/SP3/4WMIFN, Borealis, V1.Related dataset: Pandey, Neem, 2024, "Soil health assessment and cover crops for the Holland Marsh: Soil microbiome for biofumigant cover crops trials", https://doi.org/10.5683/SP3/MW9EEE, Borealis, V1.Related dataset: Pandey, Neem, 2024, "Soil health assessment and cover crops for the Holland Marsh: Soil microbiome for study on soil health", https://doi.org/10.5683/SP3/TZH42H, Borealis, V1.Studies evaluated the establishment and biomass of fall cover crops and cover crops to suppress soil-borne diseases in muck soils of the Holland Marsh. Soil health tests and the soil microbiome were also assessed. Barley and a barley/daikon radish mixture, seeded in September, produced high canopy cover, supporting their use by farmers. Barley seeded into the carrot crop produced higher canopy cover than barley or fall rye seeded after harvest. Transplanting barley after carrots produced the highest canopy cover, but associated cost is a concern. Seed priming did not enhance cover crop establishment in the field. Cover crops seeded in October produced canopy coverage below the 30% threshold for reducing soil loss by wind erosion. In the soil health assessment, low productivity soils had lower organic carbon and higher pH, with minimal variation in the soil microbiome. The study provided baseline data for future soil health research in muck soils
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Baking quality in wheat : effect of delayed harvest, cultivars, growing conditions and nitrogen fertilization
Get PDFAbstract:
FN, protein percent and gluten quality are amongst the most important quality parameters that determine the baking quality of wheat. Rainfall after physiological maturity causes PHS which reduces grain quality and value. To determine the effect of delayed harvest on PHS five spring wheat cultivars were used such that they were harvested one week after yellow ripeness, and then in 3 days interval for a period of six weeks. FN for each variety and harvest time was determined, as well as protein content and SDS sedimentation volume. Data from another set of wheat samples was used to study the effect of environment and nitrogen fertilizer on these quality parameters. This comprised data from the on-going research project, Future Wheat obtained from field trials of 12 varieties which were grown in Vollebekk and Apelsvoll in 2009, 2010 and 2011. FN, protein content and SDS sedimentation value was determined for each varieties and locations.
Results showed that FN, protein content and SDS sedimentation values were affected by delayed harvest. The FN showed stable and high values for a long time period (approximately one month), and then it decreased. Except Demonstrant all other 4 varieties maintained FN > 200 (threshold level set for bread wheat in Norway) until last harvest. These results are discussed against the actual weather data and the development of dormancy. Significant effects of environment, variety and N fertilization were found for FN, protein content, SDS sedimentation value and specific SDS value. Additional N fertilization at heading increased protein content and SDS sedimentation values in all varieties
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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