-
Article type: Cover
2007 Volume 78 Issue 6 Pages
Cover1-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App1-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App2-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App3-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App4-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
2007 Volume 78 Issue 6 Pages
i-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
2007 Volume 78 Issue 6 Pages
Toc1-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
2007 Volume 78 Issue 6 Pages
Toc2-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Nobuhiko Fueki, Shuji Higashida, Satoshi Nakatsu
Article type: Article
2007 Volume 78 Issue 6 Pages
559-564
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
To analyze the improvement effect of broadcast application on early growth of direct-sowed sugar beet, early growth of sugar beet and soil chemical factors (electric conductivity (EC), ammonium-N and nitrate-N) in soil around seed were examined. Broadcast application and band application were then compared in detail. In band application, the growth of sugar beet was oppressed through salt injury due to the too much higher ammonium-N and EC than those in broadcast application, being caused by too much fertilizer around seed. Furthermore, delay of nitrification due to too much high ammonium-N and EC was observed, and that enabled ammonium-N around seed itself to remain. This finding also could be thought of as a factor fomenting salt injury. Reversely in broadcast application, the growth of sugar beet was improved through avoidance of salt injury due to the lower ammonium-N and EC than those in band application, being brought about through incorporating fertilizer into soil. Moreover, promotion of nitrification due to low ammonium-N and EC was observed, and that enabled ammonium-N not to remain. This finding also could be thought of as a factor avoiding salt injury and improving early growth of the sugar beet.
View full abstract
-
Hiromichi Inoue, Yoshiaki Umemiya, Masayuki Kita
Article type: Article
2007 Volume 78 Issue 6 Pages
565-571
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
The objective of this study was to determine the geographical origin of the Japanese pear 'Nijisseiki' by its element composition. In 53 samples from Tottori, Nagano and other regions in Japan, 13 elements (K, Ca, P, Na, Mg, Ba, Sr, B, Fe, Zn, Cu, Mn, Ni) in peduncles and seeds were determined by ICP-AES. In the concentration of 3 elements (Na, Sr, B) or 4 elements (Na, Sr, B, Ni), correlation was observed between the peduncle or the seed in Japanese pear and top soils (0 to 20cm), respectively. Discriminant analysis using 13 elements in peduncles or seeds allowed a reasonable classification of 'Nijjisseiki' samples according to the three regions. Using the analytical results of 9 (Ca, P, Na, Mg, Sr, Fe, Zn, Cu, Ni) and 8 (P, Mg, Ba, B, Zn, Cu, Mn, Ni) elements in peduncles and seeds respectively, discriminant analysis of Japanese pear 'Nijisseiki' allowed the origin of each sample to be classified 98.1% correctly. According to these results, we thought that determination of the geographical origin in Japan of 'Nijisseiki' was attained.
View full abstract
-
Yoshitaka Hara, Kazunari Tsuchiya
Article type: Article
2007 Volume 78 Issue 6 Pages
573-580
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
The ammonium nitrogen content of soil exposed to dry heat was examined as a possible index of the soil nitrogen fertility for the next cropping season. When heated at below 180〜200℃, the soil ammonium nitrogen content tended to increase with the heating temperature and period of heating. However, the correlation with the mineral nitrogen content of the incubated soil, which corresponds to the soil nitrogen fertility for the next cropping season, increased as the heating temperature and period of heating decreased. The highest correlation (r=0.84) of the ammonium nitrogen content with the mineral nitrogen content of the incubated soil was when the soil was exposed to dry heat at 105℃ for one day. Under these conditions, the heating period is short, and the application of dry heat is the same as that currently used for water-content analysis. Thus, the ammonium nitrogen content of soil dried at 105℃ for one day can provide a simple and rapid estimate of the nitrogen fertility of the soil, which can be used to assess fertilizer requirements for the next cropping season. In addition, the soil nitrate content, which is also important for estimating the nitrogen fertility of upland fields, can be simultaneously determined using an extraction solution from the heat-dried soil, because soil nitrate content is little affected by dry heat at 105℃ for one day.
View full abstract
-
Hiroyuki Takeda, Atsushi Sato, Eiji Nishihara, Tomohito Arao
Article type: Article
2007 Volume 78 Issue 6 Pages
581-586
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
Eggplant fruits in Japan tend to have higher cadmium concentrations than international maximum limits for fruiting vegetables. The purpose of this study was to identify rootstocks which reduce the cadmium concentrations in fruits of scions. 1) Grafting onto the Solanum torvum cultivars Torubamubiga-, Tonashimu, and Torero reduced cadmium concentrations of fruits of cv. Senryou2 (Solarium melongena) by about 1/2 to 3/4 compared with grafting onto cv. Daitarou (S. melongena) or self roots. 2) Cadmium concentrations of fruits of four different scions (S. melongena) grafted onto Torubamubiga- were about 1/2 to 1/4 of those of fruits on cv. Hiranasu (Solarium integrifolium) or self roots. 3) There was no clear correlation between fruit cadmium concentrations and fresh weight or water content. 4) Cadmium concentrations of fruits harvested earlier tended to be higher than those of fruits harvested later. Thus, cadmium concentrations of fruits at higher nodal positions tended to be lower than those of lower fruits. 5) There was no clear correlation between fruit cadmium concentration and stem thickness at the end of cultivation. In conclusion, we have developed a practical method for reducing the cadmium concentration of eggplant fruits by grafting onto S. torvum rootstock.
View full abstract
-
Hideo Kubotera
Article type: Article
2007 Volume 78 Issue 6 Pages
587-590
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Nobuhiko Fueki, Satoshi Nakatsu
Article type: Article
2007 Volume 78 Issue 6 Pages
591-595
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Maiko Sugita, Koutaroh Kuninobu, Tetsuo Tokunaga
Article type: Article
2007 Volume 78 Issue 6 Pages
597-601
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Hideharu Nakajima, Yasuyuki Ichikawa
Article type: Article
2007 Volume 78 Issue 6 Pages
603-606
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Seiji Tou, Hiroyuki Shiga, Hiroshi Nakamoto, Yuji Hikasa
Article type: Article
2007 Volume 78 Issue 6 Pages
607-610
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Masayuki Onodera, Hiroshi Nakamoto
Article type: Article
2007 Volume 78 Issue 6 Pages
611-616
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Kazuyuki Inubushi, Masahiro Kasuya, Takeshi Watanabe
Article type: Article
2007 Volume 78 Issue 6 Pages
617-618
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Takashi Nishio
Article type: Article
2007 Volume 78 Issue 6 Pages
619-626
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Toshiyuki Ibaraki, Akira Taniguchi
Article type: Article
2007 Volume 78 Issue 6 Pages
627-632
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Yoshihiro Kaneta, Mitsuo Tino, Yoshie Katsuno, Mariko Sugawara, Toshih ...
Article type: Article
2007 Volume 78 Issue 6 Pages
633-636
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Masafumi Fujiyama
Article type: Article
2007 Volume 78 Issue 6 Pages
637-638
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Masatoshi Tsukamoto
Article type: Article
2007 Volume 78 Issue 6 Pages
639-640
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
641-643
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Kazuya Nishina
Article type: Article
2007 Volume 78 Issue 6 Pages
644-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Rota Wagai
Article type: Article
2007 Volume 78 Issue 6 Pages
645-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Bibliography
2007 Volume 78 Issue 6 Pages
646-650
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
651-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
652-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
2007 Volume 78 Issue 6 Pages
653-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
2007 Volume 78 Issue 6 Pages
A1-A5
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
2007 Volume 78 Issue 6 Pages
B1-B5
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
2007 Volume 78 Issue 6 Pages
C1-C3
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App5-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App6-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App7-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App8-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App9-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
2007 Volume 78 Issue 6 Pages
App10-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS
-
Article type: Cover
2007 Volume 78 Issue 6 Pages
Cover2-
Published: December 05, 2007
Released on J-STAGE: June 28, 2017
JOURNAL
FREE ACCESS