1,720,960 research outputs found
PERUBAHAN BEBERAPA SIFAT KIMIA TANAH PESISIR DAN PERTUMBUHAN TANAMAN PAKCOY (Brassica rapa L.) YANG DIBERI PUPUK KANDANG AYAM
No full textThis study aimed to determine the changes in some chemical properties of coastal soil and the growth of pakcoy (Brassica rapa L.) given chicken manure and to obtain a treatment that changed the chemical properties of coastal soil and the growth of pakcoy (Brassica rapa L.) was more good. This study used a randomized block design (RBD) consisting of 4 treatments, namely A0 (without chicken manure), A1 (100 g chicken manure polybag-1), A2 (200 g chicken manure polybag-1), and A3 (300 g chicken manure polybag-1). Soil analysis was carried out at the Nanotechnology Laboratory, Halu Oleo University. This study showed that chicken manure increased the nutrient content of total N-, P-available, C-organic, and pH in coastal soil, with a dose of organic fertilizer that gave the best effect, namely 100 g polybag-1
POLA DISTRIBUSI FOTOSINTAT PADA FASE VEGETATIF BEBERAPA VARIETAS KEDELAI PADA TANAH MASAM DI SULAWESI TENGGARA
Full text linkThis study was to determine differences in the distribution of photosynthate of vegetative phase of several varieties of soybean (Glycine max L. Merril) cultivated on acid soil of Southeast Sulawesi. This research was conducted in the sub district Anduonohu, Poasia district and at Agrotechnology Laboratory, Faculty of Agriculture University Halu Oleo, Kendari from July to October 2013. The research design used was randomized block design (RBD) with three replications. Variety treatment consisted of varieties Kaba, Argomulyo, Tanggamus, Grobogan and Gema. The variables observed in this study were root dry weight, stem dry weight, leaf dry weight, stem dry weight, and branch dry weight. Results of statistical analysis of the data showed that the treatment affected the distribution of photosynthate on different plant varieties. Different varieties gave significant effect on root dry weight, stem dry weight, leaf dry weight, branch dry weight.Keywords : Acid soils, distribution of photosynthate, soybean, varietie
STUDI HUBUNGAN ANTARA pH, ALUMINUM DAPAT TUKAR, DAN KADAR P-TERSEDIA PADA TANAH ULTISOL DENGAN PEMBERIAN KOMPOS AMPAS SAGU
No full textThis research aimed to examine the relationship between soil pH, exchangeable aluminum (Al-dd), and available phosphorus (P-available) in Ultisol soil through the application of sago waste compost. The research was conducted in a greenhouse located in Wowawanggu Village, Kadia District, Kendari City. Soil analysis was performed at the Laboratorium Dasar Kimia Analitik, Haluoleo University. The study was designed based on a Completely Randomized Design (CRD) with sago waste compost treatment doses, where each treatment was repeated 3 times. The doses of sago waste compost tested consisted of three levels: 10 tons/ha (KAS1), 20 tons/ha (KAS2), and 30 tons/ha (KAS3). Soil analysis was conducted on pH, Al-dd, and P-available before and after the application of sago pulp compost. Observations after application were made in stages every 7 days with four observations. The results showed that the application of sago waste compost had a significant effect on increasing pH and P-available and decreasing Al-dd in Ultisol soil. There was a very strong relationship between pH, P-available, and Al-dd, as indicated by a correlation coefficient value of > 0.90. The best treatment was shown by KAS3, with a sago waste compost dose of 30 tons/ha
Bioteknologi Pupuk Bokashi Plus dan Sistem Intercropping pada Tanaman Hortikultura
Full text linkTanaman hortikultura merupakan bahan pangan yang sangat dibutuhkan oleh tubuh karena menjadi sumber vitamin, mineral, protein dan karbohidrat. Komoditas hortikultura memiliki nilai ekonomis cukup tinggi, dengan tingkat permintaan yang terus mengalami peningkatan seiring dengan bertambahnya jumlah penduduk. Hal ini menjadikan komoditas hortikultura memiliki potensi pasar yang sangat besar, namun tidak didukung oleh peningkatan produksi. Hal tersebut diakibatkan sebagian besar budidaya hortikultura dilakukan pada lahan marginal dengan teknik budidaya yang tidak memadai. Kabupaten Muna, khususnya Kecamatan Watopute memiliki potensi luas lahan untuk pengembangan hortikultura, khususnya sayuran. Namun, lahan-lahan tersebut didominasi oleh lahan kering marginal yang perlu segera ditangani agar produktivitasnya meningkat. Solusi untuk permasalahan tersebut diantaranya adalah teknologi inovatif hasil penelitian dari perguruan tinggi berupa bioteknologi pemupukan yang memanfaatkan sumber-sumber daya lokal dan penerapan sistem intercropping. Bioteknologi pemupukkan berbasis organik seperti pupuk bokasi plus merupakan teknologi inovatif yang dapat meningkatkan ketersediaan produk pertanian khususnya hortikultura, sedangkan sistem intercropping, selain mampu meningkatkan efesiensi penggunaan lahan dan meningkatkan produksi tanaman per satuan luas lahan, juga mampu memperbaiki kesuburan tanah, dan meningkatkan ketahanan tanaman terhadap hama dan penyakit. Program Kemitraan Masyarakat (PKM) merupakan program yang sangat tepat untuk mendiseminasikan solusi dari permasalahan tersebut sehingga dapat diadopsi oleh masyarakat secara luas
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
- …
