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(20(4):74-81)A STUDY ON THE RESPONSE OF LEGUME PLANT TO LIME, PHOSPHATE AND INOCULATION ON ACID RED SOILS 1. The Effect of Inoculation on the Growth of Clycine Koidzum.
No full text本試驗分田間及盆栽兩部份，其目的在探求適於琉球大豆根瘤菌，以供接種而增加其產量，特再以自琉球大豆本身分離出之根瘤菌重作試驗，以觀察其增產效果。可得結論如下：
(1) 由本試驗結果，確定琉球大豆根瘤，非為一般大豆之根瘤菌，故必須自琉球大豆本身分離出之根瘤菌接種，方有顯著效果。
(2) 在施用石灰及磷肥之情形下，接種琉球大豆根瘤菌有顯著之效果。
(3) 田間試驗各處理間，接種琉球大豆根瘤菌與否，對根瘤數及乾物重所生之差異甚大，接種處理之根瘤數既多，根瘤乾物重亦大。
(4) 施用石灰與磷肥之殘效，以每公頃施用5,000公斤及磷肥施用160公斤（P2O5）為優。
Field experiments of double split Plot design with four replications were carried out at Ping-Cheng to investigate the effect of lime, phpsophate and inoculation on the growth of legume plant, Clycine Koidzum. A pot trial was carried out during the same time at Tari in Taipei for the same purpose but different treatments. In the field expriment, two levels of lime, three levels of phosphate, two kinds of inoculation were involved. While in the pot trail, there were four treatments (1) without lime, phosphate and inoculation (2) without lime and phosphate, with inoculation (3) with lime and phosphate, without inoculation (4) with lime, phosphate and inoculation.
The experimental results may be summarized as follows:
1. Results showed that Rhizobium bacteria isolated from the root nodules of G koidzum was different from the other strains of Rhizobium japonicum. Inoculation of the said Rhizobium bacteria had a significant effect on growth of G. koidzum.
2. Data indicated that liming and phosphate application had a better effect on the fresh weight of G. kidzum plants inoculated with the so-called Rhizobium bacteria.
3. The results of the yield experiments revealed marked difference in the number and dry weight of nodules between inoculation treatment. There were more number and higher dry weight of nodules in the plots with inoculation than that without inoculation.
4. Application of lime with 5 tons/ha. and phosphate 160 kg/ha had a better results on the residual effect in fertility
(17(3):7-16)EFFECT OF LIME AND PHOSPHATE ON THE YIELD OF MILK VETCH (ASTRAGALUS SINICUS) IN CONNECTION WITH THEIR RESIDUAL EFFECT ON RICE
No full text石門水庫建設完成後，在該區域轄內約有6,000餘公頃的旱地，均可轉作為水田。由於初期農民於對轉作稻田施肥不適當，稻谷收量低落，農民得不償失，對於轉作稻田多裹足不前。最近經農試所肥力測定與精密田間試驗結果，發現該地區普遍缺乏磷肥，栽植水稻時，若能施用充足磷肥，同時兼施氮鉀肥，可確保稻谷收量，每公頃在3,500~4,500公斤間。
旱地開墾為稻田，費用甚高，為減輕農民負擔，提高稻作收量，擬在冬季試種紫雲英。由於該地區土壤酸度高，磷素含量低，因此本試驗目的在探討石灰與磷肥對於紫雲英之效應及其對於後作水稻之影響，藉以明嘹在冬季期間，是否可以裡作紫雲英，供作家畜飼料之用，以增加農民之收入，減輕新墾水田農民之負擔。
本研究曾接受國家長期發展科學委員會之補助，並承農復會補助試驗經費，謹申謝忱。
These field experiments were carried out at Pinchin and Chungli to study the effect of lime and phosphate on the yield of milk vetch and residual effect on the growth of rice. Split plot design with five replications was used. Two levels of lime, O and the amount to regulate the soil pH to 6.0 were set in the main plots while three levels of phosphate, 60,120, and 18o kg P2O5 were set in the plots. The milk vetch was cut off the land after 128 days growth. The rice was harvested after 125 days’ growth at both two locations.
The fresh weight of milk vetch and the grain weight of rice were used for the analysis of variance. The soils of all treatments were sampled for pH, organic matter, and available P, K test after the harvest of rice.
From the experimental data, the following facts can be seen:
(1) There were significant effect of lime and phosphate on the yield of milk vetch at both lecations. Lime and phosphate can inorcease the yield of milk vetch very markedly.
(2) At Pinchin, the yields of rice of the plots where the milk vetch was growed previ-ously were much less than those where no milk vetch was growed. However, there was no marked difference in rice yield due to the effect of milk vetch at Chungli.
(3) No effect lime on the growth of rice can be detected at both locations,
(4) The yield of rice varied significantly with the amount of phosphate applied.
(5) The soil available phosphate was depleted more much in the soil where lime had been applied and milk vetch had been planted previously than in the soil without lime and milk vetch at Pinchin. However, this was not true for the soil of Chungli where the soil has lower fertility than that of Pinchin
A Study on the Response of Legume Plants to Lime, Phosphate and Inoculation on Acid Red Soils
No full textGoing 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
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