Search

Your search keyword '"Sano, Shuji"' showing total 29 results
Start Over Author "Sano, Shuji"
29 results on '"Sano, Shuji"'

2. Cost-effective separation of light fraction containing organic matter and charcoal material from agricultural soils using calcium chloride solution.

Author

Sano, Shuji, Yanai, Junta, Kadono, Atsunobu, Uchiyama, Tomoji, Akrich, Honami, Arakawa, Ryota, and Kosaki, Takashi

Subjects
ORGANIC compounds, CHARCOAL, AGRICULTURE, SOIL horizons, WATERLOGGING (Soils), CALCIUM chloride
Abstract

The weights of light fraction organic matter (LF) separated from soils using saturated CaCl2 solution (1.4 g cm−3) were compared to those separated using NaI solution (1.6 g cm−3 and 1.4 g cm−3) to examine the possibility of using CaCl2 solution for LF separation, to examine more cost-effective LF separation procedure. In terms of the recovery weight and carbon and nitrogen content, the LF characteristics of 19 samples of the plow layer or A horizon soils separated using CaCl2 solution were similar to those of LF separated using NaI solution (1.6 g cm−3), which is commonly used for LF analysis. These results suggest that CaCl2 solution could be used for LF analysis. The applicability of the CaCl2 separation procedure for the analysis of LF from soil containing charcoal material was further confirmed by examining another set of 16 samples of the plow layer. The recovery weights of LF from soil containing organic matter and charcoal material with CaCl2 solution were similar to those with sodium polytungstate (1.6 g cm−3), which is conventionally used not only for LF but also for charcoal material separation from soils. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

3. Soils in Greenhouse Plots in an Urban Area

Author

Sano, Shuji, Kongo, Honami, Murayama, Yuji, Editor-in-Chief, Arai, Yoshio, Series Editor, Haruyama, Shigeko, Series Editor, Kawabata, Mizuki, Series Editor, Komeie, Taisaku, Series Editor, Matsumoto, Jun, Series Editor, Oguchi, Takashi, Series Editor, Sugai, Toshihiko, Series Editor, Suzuki, Atsushi, Series Editor, Watanabe, Teiji, Series Editor, Yagasaki, Noritaka, Series Editor, Yamazaki, Takashi, Series Editor, Yokoyama, Satoshi, Series Editor, Watanabe, Makiko, editor, and Kawahigashi, Masayuki, editor

Published
2019
Full Text
View/download PDF

12. Preface to the special section on "past, present, and future biochar utilization for soil sustainability from Asian agronomical and ecological perspectives".

Author

Hiradate, Syuntaro, Katoh, Masahiko, Sano, Shuji, Sudo, Shigeto, Sugihara, Soh, and Toma, Yo

Subjects
BIOCHAR, CARBON sequestration, SOIL science, BOTANY, PLANT nutrition
Abstract

The article discusses the use of biochar, a carbonated biomass generated through pyrolysis, for improving agricultural productivity and carbon sequestration. The benefits of biochar have been observed in regions such as East and Southeast Asia, where there is a long history of biochar utilization. The article highlights the importance of sharing information on biochar in order to effectively use it in other countries. The special section in the journal Soil Science & Plant Nutrition serves as a starting point for research on biochar utilization for soil sustainability from Asian agronomical and ecological perspectives. [Extracted from the article]

Published
2024
Full Text
View/download PDF

13. Simultaneous decrease of arsenic and cadmium in rice (Oryza sativa L.) plants cultivated under submerged field conditions by the application of iron-bearing materials

Author

Makino, Tomoyuki, primary, Nakamura, Ken, additional, Katou, Hidetaka, additional, Ishikawa, Satoru, additional, Ito, Masashi, additional, Honma, Toshimitsu, additional, Miyazaki, Naruo, additional, Takehisa, Kunihiko, additional, Sano, Shuji, additional, Matsumoto, Shingo, additional, Suda, Aomi, additional, Baba, Koji, additional, Kawasaki, Akira, additional, Yamaguchi, Noriko, additional, Akahane, Ikuko, additional, Tomizawa, Miki, additional, and Arao, Tomohito, additional

Published
2016
Full Text
View/download PDF

19. Soil color analysis for statistically estimating total carbon, total nitrogen and active iron contents in Japanese agricultural soils

Author

10554975, 20432338, Moritsuka, Naoki, Matsuoka, Kaori, Katsura, Keisuke, Sano, Shuji, Yanai, Junta, 10554975, 20432338, Moritsuka, Naoki, Matsuoka, Kaori, Katsura, Keisuke, Sano, Shuji, and Yanai, Junta

Abstract

Soil color originates mainly from organic matter, iron mineralogy and moisture content. We aimed to find a suitable method to measure soil color sensitively and to evaluate the extent to which the color parameters can be useful for statistically estimating total carbon (C), total nitrogen (N) and active iron (Fe) contents in Japanese agricultural soils. A soil color reader (SPAD-503) was applied to two sample sets: (1) 100 surface soils collected throughout a 0.5-ha paddy field (field scale) and (2) 147 surface soils collected from agricultural fields in Japan (national scale). For analysis with this instrument, about 2 g of air-dried, finely-ground samples were packed firmly in a plastic cell, and their colors as they appeared on windows in both sides of the cell were measured. A CIE 1976 (L[*], a[*], b[*]) color space was used for color description. For the field-scale samples, the values of the coefficient of variation were around 15% for total C, total N and acid oxalate extractable iron (Feo). The L[*] value (lightness) was negatively correlated with the content of total C and total N (R[2] = 0.18** and 0.26**, respectively), and the b[*] value (yellowness) was positively correlated with the Feo content (R[2] = 0.59[**]). For the national-scale samples, the values of the coefficient of variation were around 60% for total C, total N and Feo. The L[*] value was negatively correlated with the content of total C and total N (R[2] = 0.70** and 0.59[**], respectively), but the b[*] value was not correlated with the content of Feo (R[2] = 0.00). When the analysis was limited to 65 samples frequently used for paddy fields, the b[*] value was positively correlated with the Feo content (R[2] = 0.52[**]). In conclusion, the proposed method enabled us to measure soil color sensitively with a small sample size. The L[*] and b[*] values obtained can be useful for rapid estimation of total C, total N and Feo contents in agricultural surface soils in Japan.

Published
2014

Catalog

Books, media, physical & digital resources
See catalog results