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Article type: Cover
1934 Volume 8 Issue 3 Pages
Cover1-
Published: September 15, 1934
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Article type: Appendix
1934 Volume 8 Issue 3 Pages
App1-
Published: September 15, 1934
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[in Japanese]
Article type: Article
1934 Volume 8 Issue 3 Pages
i-ii
Published: September 15, 1934
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Article type: Index
1934 Volume 8 Issue 3 Pages
Toc1-
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Article type: Appendix
1934 Volume 8 Issue 3 Pages
App2-
Published: September 15, 1934
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Toyotaro SEKI
Article type: Article
1934 Volume 8 Issue 3 Pages
245-256
Published: September 15, 1934
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The classification of the soil into the siallitic and allitic groups has an undeniable significance in subdividing the soil type and in estimating the agricultural value of the cultivable land. The questions in this line are discussed in this paper. The previous works and opinions of HILGARE, SEKI, HARRASSOWITZ, ALBERT, BENNET, and MARTIN and DOVNE, having connection with the subject of this paper are interpreted with the anthor's short critical and explanatory notes. In the case where the genetical tendency or the morphological character is particularly not concerned, the anthor prefers the denominations, allite and allitic soil to those frequently and carelessly used, laterite and lateritic soil. A new plan of the classification of our volcanogenous soils into (1) siallitic, (2) sub-siallitic, (3) acid sub-allitic, (4) sub-allitic and (5) allitic groups with reference to the slica/alumina ratio, dyestuff ratio and soil reaction is described and explained with the numerous examples. (July, 1934.)
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Haruo OKAMOTO
Article type: Article
1934 Volume 8 Issue 3 Pages
257-265
Published: September 15, 1934
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The analyses of five strata which were found in the profile of the peaty soil in Miyagi Prefecture were made, and obtained the following results : [table]
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S. OSUGI, M. AOKI
Article type: Article
1934 Volume 8 Issue 3 Pages
266-284
Published: September 15, 1934
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An enquiry as to the nature of acidoid which was proposed by Puri was made by using the clayey soils lacking in organic matter, and applied the following tests : 1. Exchangeability of H^・ in soil acidoid with Ba^<・・> in BaCl_2 2. Solubility of Al in different conc. HCl. 3. Relationship between H_1 and the inversion capacity of cane sugar by the soil. 4. Saponification of ethyl acetate. 5. Absorption of ammonia by the soil. 6. Decomposition of C.CO_3 by the soil. 7. Absorption of Ba^<・・> by the soil after Hissink's method. As the results of these tests, it was found that the acidoid in each of those soils tested, manifested those various reactions which are specific to the true acid. However it is doubtful if the acidoid in all the soils is tribasic in nature as reported by Puri.
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Matuo TOKUOKA
Article type: Article
1934 Volume 8 Issue 3 Pages
285-292
Published: September 15, 1934
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Polarograpisch wurde es nachgewiesen, dass sich von den Huminsauren die Humussaure an der tropfenden Quecksilberkathcde nicht reduziert, dass aber die Hymatomelansaure bei ca.-1.4v. aus alkalischer Losung reduziert wird. Von der Furalreduktion, die bei ungefahr demselben Potential vor sich geht, unterscheidet sich die Hymatmelansaure-Reduktion dadurch, dass sie bloss eine Welle, dagegen das Fural zwei Wellen in Losungen von Kationen der alkalischen Erden hervorruft. Es wurde polarographisch nachgepruft, dass durch Salzsaurehydrolyse der Humussaure langsam die Hymatmelansaure ent teht. Der Furankern hat sich als nicht reduzierbar erwiesen. Aus dem polarographischen Charakter der Hymatomelansaure geht hervor, dass ihre reduktionsfahige Gruppe nicht eine aldehydische ist, sondern eine konjugierte, nicht im Furankern enthaltene ungesattigte Bindung oder eine konjugierte ketonissche Gruppe ist. Es wurde eine Methode ausgearbeitet, die den relativen Gehalt des Torfes an Hymatmelansaure polarographisch zu bestimmen erlaubt.
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T. ITIKAWA
Article type: Article
1934 Volume 8 Issue 3 Pages
293-296
Published: September 15, 1934
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Sixteen kinds of Manchurian soils were analyzed, and found as follows : [table] Also the results are compared with those of Japanese soils, and the difference of their distribution by the districts in Manchuria is noted.
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K. KONISI, T. TUGE
Article type: Article
1934 Volume 8 Issue 3 Pages
297-308
Published: September 15, 1934
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Oxygen consumption by six species of nodule bacteria were measured in micro-manometers by Warburg technic. The rate of oxygen consumed by 10 milligrammes of moist bacterial cell of Rh. leguminosarum and Rh. meliloti in yeast water mannitol medium were increased more highly than that of Rh. lupini, Rh. jeponicum and "genge" bacteria, while Rh. trifolii consumed oxygen in the lowest rate. The rate of oxygen consumed by one million of bacteria was also special for these species : namely Rh. meliloti and Rh. trifolii. were the most energetic consumers and Rh. lupini was the weakest. To find the effects of pentose and hexose upon the oxygen consumption by Rhizobia, xylose, arabinose, glucose and fructose were used as carbon sources. However, there was no specific relation between the extent of oxygen consumed and the composition of the carbohydrates. The oxygen tension had little influences upon the rate of oxygen consumption by Rh. japonicum and Rh. lupini. But it was thought that Rh. meliloti consumed oxygen in the highest rate under oxygen pressure similar to air, and that Rh. trifolii prefered more reduced pressure.
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Takesi IWATA, Azuma OKUDA
Article type: Article
1934 Volume 8 Issue 3 Pages
309-314
Published: September 15, 1934
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Ammonification and nitrification experiments on the nitrogen of fowl excrement in soils were made in the laboratory, providing the dry-farm and water-logged conditions. As the conclusion, it may be said that the manurial value of nitrogen of fowl excrement depends mainly upon its urine content.
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[in Japanese]
Article type: Article
1934 Volume 8 Issue 3 Pages
315-316
Published: September 15, 1934
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[in Japanese]
Article type: Article
1934 Volume 8 Issue 3 Pages
317-325
Published: September 15, 1934
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[in Japanese]
Article type: Article
1934 Volume 8 Issue 3 Pages
326-329
Published: September 15, 1934
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[in Japanese]
Article type: Article
1934 Volume 8 Issue 3 Pages
330-335
Published: September 15, 1934
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[in Japanese], [in Japanese]
Article type: Article
1934 Volume 8 Issue 3 Pages
336-338
Published: September 15, 1934
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[in Japanese]
Article type: Article
1934 Volume 8 Issue 3 Pages
339-340
Published: September 15, 1934
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Article type: Appendix
1934 Volume 8 Issue 3 Pages
341-342
Published: September 15, 1934
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Article type: Appendix
1934 Volume 8 Issue 3 Pages
343-
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Article type: Appendix
1934 Volume 8 Issue 3 Pages
344-345
Published: September 15, 1934
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Article type: Bibliography
1934 Volume 8 Issue 3 Pages
346-348
Published: September 15, 1934
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Article type: Appendix
1934 Volume 8 Issue 3 Pages
349-351
Published: September 15, 1934
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[in Japanese]
Article type: Article
1934 Volume 8 Issue 3 Pages
351-
Published: September 15, 1934
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Article type: Appendix
1934 Volume 8 Issue 3 Pages
352-
Published: September 15, 1934
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Article type: Appendix
1934 Volume 8 Issue 3 Pages
App3-
Published: September 15, 1934
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Article type: Cover
1934 Volume 8 Issue 3 Pages
Cover2-
Published: September 15, 1934
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Article type: Cover
1934 Volume 8 Issue 3 Pages
Cover3-
Published: September 15, 1934
Released on J-STAGE: June 30, 2017
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