1,721,023 research outputs found
Studies on the Percentages offruit-setting of self and Cross-pollination and Its Relation the Some Economic characters of the F1 Hybrids in Tea Plant
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(10(3):6-15)AN EXPERIMENT ON THE N-P-K REQUIREMENT OF RAMIE
No full text為深討苧麻三耍素施用適量，於民國43年開始在臺北、臺南兩地辦理試驗，其設計包括各要素施用不同量之處理共17，重覆4次，經統計分析結果氮施用量之增加達到顯著平準，由本試驗之成績可以推測苧麻之三要素施用量為每公頃氮90，磷30，鉀75公斤/公頃。
This experiment was conducted from 1954-4958 in Taipei and. Tainan in order to get information about the N-P-K requirement for ramie. It has 16 fertilizer treatments with four replication. Accerding to statisical analysis, the effect of nitrogen was very significent, the ramie yield in the plot at medium level of N-P-K varied from 300 to 1,000 kg/ha, from which we suppose that some other facters might have effected the crop yield. Certain difficulties here encountered in this experiment. From this ex
periment we propose for the optimum N-P-K ratio the following 90-30-75 kg/ha
(14(3):45-48)STUDY ON THE EFFECT OF SILICA ON PADDY RICE (Part III)
No full text水稻田間栽培試驗結果知含矽鑛滓之施用可提高單位面積內稻谷產量。其增產程度雖依試驗地點而有差異，由於土壤中可溶性矽含量與稻谷增產百分率間，及第一期作水稻收穫時藁稈中矽含量與稻谷增產率間得到密切相關關係，故可由土壤或植物體分折結果來推測，水田土壤中缺矽情形。
Benificial effect of silica on rice giving percentage yield increment ranging from 0 to 10% has been demonstrated by this field experiment. More over, the field data were found to be highly correlated to silica content in plant leaf and weak acid soluble silica in the soil. From this fact, plant analysis and soil tesing look most promising in judging the solica requirement for rice
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
((9(1):21-39)AN EXPERJMENT ON THE TOP-DRESSING OF NITROCHALK TO RICE
No full text1. 若硝酸錏鈣比照硫酸錏同樣施用，即以1/2氮素作基肥，其餘1/2在第一期作插秧後20日施用，或在第二期作插秧後15日施用時，其肥效確較硫酸錏者為低，若以硫酸錏區之谷錏產量各作為100，則硝酸鈣鈣區之谷藁產量指數，在第一期作各為86.2及85.1，在第二期作各為92.3及90.5。若以每公斤氮素對于谷藁增產之公斤數比較之，硫酸錏中每公斤氮素在第一期作可較硝酸錏鈣中者多增產谷實7.3公斤，藁稈8.5公斤，在第二期作多增產谷實2.5公斤，藁稈4.2公斤。
2. 若在第一期作將半數之硝酸錏鈣均在插秧後20日施用，其餘則分別在插秧後40，50及60日施用，而在第二期作時半數之硝酸錏均在插秧後15日施用，另半數則分別在插秧後30~40及50日施用，而基肥完全不施用任何氮素肥料時，其對于谷實之收量確較以硝酸錏鈣作基肥施用者提高。但其對于每公斤氮素所增產之谷藁公斤數與硫酸錏者比較時仍見遜色。
3. 就谷實收量而言，以1/2氮素用硫酸錏作基肥，其餘用硝酸錏鈣作一次追肥時，若施用時期適當可與完全硫酸錏區相比擬，在本試驗情形之下，在第一期作以插秧後40以為宜，第二期作以插秧後30日為宜。若1/2氮素用硫酸錏作基肥，其餘用硝酸錏鈣平分兩次作追肥施用時，其效果不及前述以1/2氮素用硫酸錏作基肥其餘用硝酸錏鈣作追肥者。就藁稈收量而言，追肥施用遲者有減收之虞。
綜上而言，硝酸錏鈣作追肥確較基肥為優，但為稻谷增產完全起見，仍不分配于稱農為得策。
The purpose of this experiment was to study the merit of nitrochalk to he applied as a base dressing or as a top dressing and to find out the proper time of applying nitrochalk. Since application of nitrochalk alone would cause a reduction in yield of grain and straw as found by previous investigators, comparisons of treatments with various amount of ammonium sulphate applied as a base dressing in combination with a portion of nitrochalk as a top dressing were also made. This experiment was conducted at 8 locations under a representative variety of soils and climate conditions in 1955-1957. Its result may be summarized as follows:
In most cases, the response of rice to nitrochalk applied as a base dressing was decidedly inferior to that to ammonium sulphate through statistically significant test. Providing both yields of grain and straw derived from ammonium sulphate as 100, those from nitrochalk were 86.2 and 85.1 for the first crop, and 92.3 and 90.5 for the second crop, respectively.
Significant differences were usually found between top dressing and base dressing of nitrochalk. Yields increased by one kilogram of nitrogen derived from nitrochalk applied at various times were given in the following table. Data from ammonium sulphate were also presented for reference.
Taking the yield from the plot treated with ammonium sulphate as 100, those treated with one-half of nitrogen from ammonium sulphate and the other from nitrochalk were as follows:
It was found that yields of paddy rice produced by one third of nitrogen from ammonium sulphate and the other from nitrochalk were slightly lower than those given by one-half of nitrogen from ammonium sulphata and the other from nitrochalk.
It was concluded that nitrochalk should be allocated for the crops other than rice plant, otherwise, it should be applied properly as a top dressing in combination with ammonium sulphate as a base dressing
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
The Effect of Mulching on Soil Temperature and Soil Moisture and on the Growth, Yeild and Quality of Young Tea
No full textDispelling 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
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