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Investigation on nitrogen, sulphur and FYM application on growth and yield of sunflower (Helianthus annuus L.
No full textThe present investigation entitled “Investigation on nitrogen, sulphur and FYM application on growth and yield of sunflower (Helianthus annuus L.)” was conducted at Agronomy Farm of Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar during kharif 2009 and 2010. The experiment was laid out in a randomized block design with three nitrogen levels (40, 80 and 120 kg ha-1), two sulphur levels (30 and 60 kg ha-1) and three FYM levels (0, 10 and 20 t ha-1). The plots were given uniform recommended dose of phosphorus and potassium through diammonium phosphate and muriate of potash at the rate of 60 and 40 kg P2O5 and K2O ha-1, respectively. The soil of the experimental field was silty clay loam in texture, low in available nitrogen and sulphur, high in organic carbon, medium in available phosphorus and potassium with neutral pH.
The study revealed that except at 25 days after sowing (DAS), the periodic plant height, leaf area index and dry matter production recorded significant and consistent increase with increase in nitrogen rates from 40 to 120 kg ha-1 during both years of investigation. Nitrogen rates of 80 and 120 kg ha-1 at par with one another, significantly increased the total number of achenes capitulum-1, number of filled achenes capitulum-1 and 1000-seed weight over 40 kg N ha-1 during both years, however head diameter and sterlity percentage recorded significant and consistent increase with increase in nitrogen rate up to 120 kg ha-1. Nitrogen application at the rate of 80 and 120 kg ha-1, at par with one another significantly increased the seed yield over 40 kg N ha-1 during 2009 and 2010 and in the pooled yield over two years. However, stalk yield showed significant and consistent improvement with increase in nitrogen application up to 120 kg ha-1. The harvest index (HI) recorded significant increase with increase in nitrogen rateup to 80 kg ha-1 but showed significant decrease at 120 kg N ha-1 application. Nitrogen content and uptake in seed and stalk showed significant and consistent increase with increase in nitrogen rate up to 120 kg ha-1, whereas sulphur content and uptake in seed and stalk recorded at 80 and 120 kg N ha-1 was statistically similar but significantly higher than 40 kg N ha-1. The oil content recorded significant and consistent decrease with increase in nitrogen rate up to 120 kg ha-1, whereas oil yield showed significant and consistent increase with increase in nitrogen rate up to 120 kg ha-1.
Sulphur application at 60 kg ha-1 significantly increased the periodic plant height, leaf area index and dry matter production except at 25 DAS over 30 kg S ha-1 during both years of experimentation. All yield attributes viz., total achenes capitulum-1, filled achenes capitulum-1 and 1000-seed weight recorded significant increase with increase in sulphur rate up to 60 kg S ha-1 during both years, whereas sterlity percentage remained unaffected with sulphur application. Both seed and stalk yield and the pooled seed yield over two years showed significant increase with increase in sulphur rate up to 60 kg ha-1. Both nitrogen content and uptake and sulphur content and uptake in seed and stalk and oil content and oil yield recorded significant increase with increase in sulphur rate from 30 to 60 kg S ha-1.
FYM application at 10 and 20 t ha-1 was statistically similar but significantly increased the periodic plant height, leaf area index and dry matter production except at 25 DAS over no FYM application during both years of study. The yield contributing characters viz., filled achenes capitulum-1, head diameter and 1000-seed weight recorded with 10 and 20 t FYM ha-1 were at par but significantly higher over no FYM application, whereas total achenes capitulum-1 increased significantly and consistently with increase in FYM rate from 0 to 20 t ha-1. Sterlity percentage recorded with 20 t FYM ha-1 was significantly higher over 10 and 0 t FYM ha-1. Seed yield during 2009 and 2010 and pooled yield over two years recorded with 10 and 20 t FYM ha-1 was at par but significantly higher over 0 t FYM ha-1, whereas stalk yield showed significant and consistent increase with increase in FYM rate from 0 to 20 t ha-1. Nitrogen content and uptake in seed and stalk recorded with 10 and 20 t FYM ha-1 was similar but significantly higher than no FYM application except nutrient content during 2009. Sulphur content in seed recorded with 10 and 20 t FYM ha-1 was statistically similar but significantly higher than 0 t FYM ha-1, whereas sulphur content in stalk and sulphur uptake in seed and stalk recorded significant and consistent increase with increase in FYM rate up to 20 t ha-1. The oil content remained unaffected by different FYM levels, however oil yield increased significantly and consistently with increase in FYM rate up to 20 t ha-1. The interaction effect of nitrogen and FYM on dry matter production at harvest, nitrogen and sulphur during 2010, FYM and sulphur during 2010 and FYM and nitrogen during 2009 and 2010 on filled achenes capitulum-1, nitrogen and FYM on seed yield and nitrogen and sulphur, nitrogen and FYM and sulphur and FYM on oil yield during 2009 and 2010 was found significant.
Available nitrogen in soil after crop harvest during two years was highest with treatment combination 120 kg N + 60 kg S + 20 t FYM ha-1 and lowest with 40 kg N + 30 kg S + 0 t FYM ha-1. Similar trend was observed also for available sulphur and organic carbon content.
The net returns and benefit cost ratio remained highest with tretment combination 80 kg N + 60 kg S + 0 t FYM ha-1, whereas gross returns were highest with 120 kg N +60 kg S + 20 t FYM ha-1
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
The Practical Scholar
Get PDFLarry King was the practical scholar for bankruptcy. In 1992, Harry Edwards, a District of Columbia Court of Appeals judge who has been a lecturer at New York University Law School since 1989, provided a definition of practical scholarship that defines Larry\u27s scholarship: [I]t analyzes the law and the legal system with an aim to instruct attorneys in their consideration of legal problems; to guide judges and other decisionmakers in their resolution of legal disputes; and to advise legislators and other policymakers on law reform
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
Development and Assessment of the Korean Author Recognition Test
Get PDFThis research reports the development and evaluation of a Korean Author Recognition Test (KART), designed as a measure of print exposure among young adults. Based on the original, English-language version of the Author Recognition Test (ART), the KART demonstrates significant relationships with offline measures of language ability, as well as online measures of word recognition. In particular, KART scores were related to participants\u27 responses on the Comparative Reading Habits (CRH) checklist, suggesting that KART is a valid measure of print exposure. In addition, KART scores showed reliable correlations with offline measures of vocabulary knowledge and language comprehension. Finally, results from a lexical decision task showed that KART scores modulated the magnitude of the word familiarity effect, such that the effect was smaller for participants with higher KART scores The results suggest that the ART is a language-universal task that measures print exposure, which is useful for explaining individual differences in language comprehension abilities and word recognition processes
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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