-
Article type: Index
1934 Volume 8 Issue 4 Pages
Toc1-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1934 Volume 8 Issue 4 Pages
App1-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Koji MIYAKE, Isio TAMATI
Article type: Article
1934 Volume 8 Issue 4 Pages
353-380
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
The morphological and chemical features of each horizon in the soil profile of residual forest soil of tertiary shale from Wakkanai province - northern part of Hokkaido - were studied and the soil types were discussed in this report. The morphological feature of the soil profile was observed as follows : [table] As a result of the determination of total and acid humus in each horizon of the soil profile, it was found that it was accumulated in A_1 while in A_2 it was washed down. Some acid humus was deposited in B_1 as a result of removal from the upper horizons. The result of complete analysis of the mineral portion of the soil in each horizon indicated that the accumulation of silica, and removal of the sesquioxides and bases in A_1 and A_2 horizons have occurred. Especially the removal had been marked in the latter as compared with the former ; so the deposition of the sesquioxides was seen in B_1 horizon. The molecular ratio of silica to alumina and alumina to bases calculated from the result of the complete analysis also proved that the accumlation and removal of the matter in these horizons had occured respectively. The amount of mineral ingredients dissolved in hot hydrochloric acid indicated that the same tendency of accumulation and removal occurred in these soil horizons as aforesaid. The molecular ratio of SiO_2 to Al_2O_3 and Al_2O_3 to bases in this case was found as SiO_2 : Al_2O_3 = 6.63 : 1 and Al_2O_3 : bases = 1 : 0.30 in A_2 while SiO_2 : Al_2O_3 = 5.31 : 1 and Al_2O_3 : bases = 1 : 0.53 in B horizon. From the result above mentioned it is clear that Wakkanai forest soil should be classified in the group of podzol soil type. "Verwitterungsziffer K and B" proposed by HARRASSOWITZ were calculated from the result of the complete analysis on A_2 and C horizons. The values found agreed well with those presented by that author, which indicates that the soils have undergone the podozolization process. The leaching value β and shifting value μ which were described by JENNY recently were also calculated from the result of the complete analyses of A_2 and C horizons. The calculated values prove clearly that the soils studied were formed from shale under the influence of the podzolization process.
View full abstract
-
Satiyo ARAKAWA
Article type: Article
1934 Volume 8 Issue 4 Pages
381-384
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
The relationship between the growth of weeds, namely (1) Heleocharis acicularis, R. Br., (2) Cyperus nipponicus, Franch. et. Sav., (3) Monochoria vaginalis, Presl. var. plantaginea, Solms-Lamb., (4) Rotala indica, Koehne., (5) Lindernia pyxidaria, A11., (6) Lindernia augustifolia, Wetts., (7) Spirendora polyrhi.a, Schleid., (8) Lemna pancicostata, Hegelm. and (9) Potamcgeton polygonifolius, Pourr., and the reaction of soil and the stagnant water in the paddy-field was investigated ; and found that in case of soil, all these weeds grew more or less within pH 3.3-9.2,and (1) weed was most resistant thru all pHs ; within pH 5.0-6.7 all the weeds grew well, while in pH 7.3-7.8 the growth was less. In the stagnant water, (7), (8) and (9) weeds were tested, and found that pH 3.2 and 9.4 as the limiting reaction, pH 6.5-7.5 as the optimum. Further (7) and (8) weeds were compared as to the growth rate in different pHs and found a big difference. From these results, it is reported that to prevent the growth of these weeds by adjusting pH in the soil and the stagnant water is difficult, since the effect on the rice plants should be considered at the same time. The manure value of these weeds will be investigated in future.
View full abstract
-
Seisaku HASEGAWA
Article type: Article
1934 Volume 8 Issue 4 Pages
385-391
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
An addition of a small amount of fertile soil to an artificial compost with calcium cyanamide, accelerates the formation of ammonia in the compost, and no difference in the rate of reaction was found regarding the moisture content of the soil used. If the calcium cyanamide compost has a deleterious influence on the nitrification in the soil or not, depends on the quantity as well as the degree of decomposition of the compost used. The well ripened calcium cyanamide compost behaves equally effective as the compost of any other nitrogen source and has no harmful influence on the nitrification. Consequently the well ripened product can safely be applied to the dry-farm or the paddy-field.
View full abstract
-
Sigejiro SUGITA
Article type: Article
1934 Volume 8 Issue 4 Pages
392-400
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
The author tried chemical reactions of pyrrol, iodform, sugar, phenol, aldehyde and fluorescein test, and also azophenine formation with the humus extracts of ten soil samples. The results obtained are as follws : [table]
View full abstract
-
S. KASUGAI
Article type: Article
1934 Volume 8 Issue 4 Pages
401-405
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Kazumi KAWAMURA, Singo FUNABIKI
Article type: Article
1934 Volume 8 Issue 4 Pages
406-416
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
The paper records the analytical results of soil colloids which were separated from 13 alluvial rice-field soils and 9 diluvial & volcanic ash soils of the middle and western districts of Japan. The data are given in the tables.
View full abstract
-
Arao ITANO, Y. TUZI
Article type: Article
1934 Volume 8 Issue 4 Pages
417-428
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
One hundred and twelve soi1 samples were collected from various parts in Japan and analyzed or their iodine contents, and the results are considered in the light of the geological system, soil classes, conditions and the pH values of soils ; and the following summary is given : l) A majority of soils contained 1.0-3.0 p. p. m. of iodine, and 15.51% soils contained more than 10.0 p. p. m. The largest iodine content was 56.53 p. p. m. and the smallest, 0.49 p. p. m., and the average for all the soils was 7.41 p. p. m. 2) The soils form the older quaternary period contained the largest amount of idine followed by the younger in the same period. 3) The clayey soils contained the largest amount of iodine which was followed by the loam, sand and sandy loam in the order. 4) The soils of larger pH contained more iodine on the average. 5) The soils from the dry-farm contained iodine, almost double the amount of those from the paddy-field. Considering the foregoing results in comparison with those data which had been reported by the investigators in other countries, the soils in Japan, in general, contain more iodine than those in other countries.
View full abstract
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
429-432
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1934 Volume 8 Issue 4 Pages
433-440
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1934 Volume 8 Issue 4 Pages
441-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1934 Volume 8 Issue 4 Pages
442-443
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
444-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
444-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
444-445
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
445-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
445-446
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
446-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
446-447
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
447-448
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
448-449
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
449-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
449-450
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
450-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
450-451
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
451-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
451-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Bibliography
1934 Volume 8 Issue 4 Pages
452-454
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1934 Volume 8 Issue 4 Pages
455-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1934 Volume 8 Issue 4 Pages
456-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1934 Volume 8 Issue 4 Pages
456-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1934 Volume 8 Issue 4 Pages
App2-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
1934 Volume 8 Issue 4 Pages
1-4
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1934 Volume 8 Issue 4 Pages
App3-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Cover
1934 Volume 8 Issue 4 Pages
Cover1-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS
-
Article type: Cover
1934 Volume 8 Issue 4 Pages
Cover2-
Published: December 05, 1934
Released on J-STAGE: June 30, 2017
JOURNAL
FREE ACCESS