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Article type: Cover
1940 Volume 14 Issue 3 Pages
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Article type: Appendix
1940 Volume 14 Issue 3 Pages
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Article type: Index
1940 Volume 14 Issue 3 Pages
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Rokuro KAWASHIMA, Gen-ichiro SUYAMA
Article type: Article
1940 Volume 14 Issue 3 Pages
143-147
Published: March 25, 1940
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In this paper the acidity and the degree of lime saturation of Japanese chestnut orchard soil is dealt with. From the results of analysis, it is shown that the Japanese variety of chestnut is a calcifuge.
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Kametaro KONISHI, Shuichi ISHIZAWA
Article type: Article
1940 Volume 14 Issue 3 Pages
148-164
Published: March 25, 1940
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Experiments were made in which utilization and reduction of nitrate or nitrite by several kinds of root nodule bacteria were conducted in the mannitol liquid culture at various periods of growth. As far as possible, five per cent yeast water was added on the basis of bacterial activity to support their good growth. The results are as follows : a. Although the organism from "Genge" is not able to attack potassium nitrate, most of rhizobia except alfalfa bacteria break down or reduce nitrate to nitrites distinctly. b. The reduction process is exceedingly retarded by clover bacteria as well as bean and wood's clover bacteria, when grown in ammonium nitrate media. c. No change in total nitrogen of the flasks containing potassium nitrate media, in which clover, bean and wood's clover bacteria have respectively grown, are shown for fourteen days incubation, while a remarkable decreases in the cultures of cowpea, lupine and alfalfa organisms. d. It is suggestible that an ability in utilizing nitrite by rhizobia is noticed and that a species from alfalfa attack nitrite in particular to produce large amounts of gaseous nitrogen.
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Yutaka KAMOSHITA
Article type: Article
1940 Volume 14 Issue 3 Pages
165-168
Published: March 25, 1940
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Determination of phosphoric acid and potassium removed from the soil by electrodialysis was made by the use of Mattson's cell. Phosphoric acid so dialyzed was compared in its amount to the coefficient of naturaly supplied phosphoric acid of the soil, the coefficient being calculated from the result of 12 or 13-years continued pot experiment with paddy rice. Consideration was made also on the relation between the amount of dialyzed phosphoric acid and that of dialyzed potassium. The results were observed as follows : (1) Phosphoric acid was observed to be dialyzed in a large amount always from the soils which had the large coefficient of naturaly supplied phosphoric acid, consequently which were considered to maintain the available phosphoric acid in sufficient amount to the plant growth. (2) General tendency was observed for the amount of dialyzed potassium to increase with the increasing amount of dialyzed phosphoric acid. (3) No relation was confirmed between the amount of dialyzed potassium and the coefficient of naturaly supplied potassium owing to that applied soil samples did not include those which have the smaller coefficient. According to the above results it was concluded that the electrodialysis method may be recognized as one of the tentative means of determining the amount of available phosphoric acid to the plant growth in soils.
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Fusao KOYAMA, Tokuji FUKUTA
Article type: Article
1940 Volume 14 Issue 3 Pages
169-174
Published: March 25, 1940
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Two different sets of pot experiment were carried out to know what a difference in the composition of mulberry bares could be found between them. The former was the case in which some CaCo_3 was put in the acid Soil, and the latter was the Case in which the acid soil was used as it was. The results are summarized as follows : 1) The water content, nitrogen, protein and ash in leaves are found much greater in the neutral-soil plot than in the acid-soil plot, but the soluble carbohydrate and ether soluble substances are quite the reverse. 2) The mulberry leaves grew in the acid-soil plot are poorer in P_2O_5,K_2O, CaO and MgO, but richer in SiO_2. 3) Alkalinity of ash in mulberry tree is as follows : (in dry matter) [table]
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Toshihisa TSUGE
Article type: Article
1940 Volume 14 Issue 3 Pages
175-188
Published: March 25, 1940
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
189-
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
189-191
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
191-192
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
192-
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
193-
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
193-
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
193-194
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
194-
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
194-
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
195-
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[in Japanese]
Article type: Article
1940 Volume 14 Issue 3 Pages
195-
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Article type: Article
1940 Volume 14 Issue 3 Pages
195-
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Article type: Article
1940 Volume 14 Issue 3 Pages
195-
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Article type: Article
1940 Volume 14 Issue 3 Pages
195-
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Article type: Article
1940 Volume 14 Issue 3 Pages
195-196
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Article type: Article
1940 Volume 14 Issue 3 Pages
196-
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Article type: Article
1940 Volume 14 Issue 3 Pages
196-
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Article type: Article
1940 Volume 14 Issue 3 Pages
196-
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Article type: Article
1940 Volume 14 Issue 3 Pages
196-
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Article type: Article
1940 Volume 14 Issue 3 Pages
197-
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Article type: Article
1940 Volume 14 Issue 3 Pages
197-
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Article type: Article
1940 Volume 14 Issue 3 Pages
197-
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Article type: Article
1940 Volume 14 Issue 3 Pages
197-
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Article type: Article
1940 Volume 14 Issue 3 Pages
197-198
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Article type: Article
1940 Volume 14 Issue 3 Pages
198-
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Article type: Article
1940 Volume 14 Issue 3 Pages
198-
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Article type: Article
1940 Volume 14 Issue 3 Pages
199-
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Article type: Article
1940 Volume 14 Issue 3 Pages
199-
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Article type: Article
1940 Volume 14 Issue 3 Pages
199-
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Article type: Article
1940 Volume 14 Issue 3 Pages
199-200
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Article type: Article
1940 Volume 14 Issue 3 Pages
200-
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Article type: Article
1940 Volume 14 Issue 3 Pages
200-
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Article type: Article
1940 Volume 14 Issue 3 Pages
200-
Published: March 25, 1940
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Article type: Article
1940 Volume 14 Issue 3 Pages
200-
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Article type: Article
1940 Volume 14 Issue 3 Pages
200-
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Article type: Appendix
1940 Volume 14 Issue 3 Pages
201-203
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Article type: Appendix
1940 Volume 14 Issue 3 Pages
204-
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Article type: Appendix
1940 Volume 14 Issue 3 Pages
App2-
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Article type: Cover
1940 Volume 14 Issue 3 Pages
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Published: March 25, 1940
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Article type: Cover
1940 Volume 14 Issue 3 Pages
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Published: March 25, 1940
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