Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Takahiko Naganawa"'
Autor:
Kazunori Sakamoto, Junta Yanai, Takashi Kosaki, Ryusuke Hatano, Takahiko Naganawa, Kanako Kusa, Keisuke Yamakawa, Taku Oe, Takuji Sawamoto, Kazuyuki Inubushi
Publikováno v:
Journal of Environmental Quality. 32(6):1965-1977
To evaluate spatial variability of nitrous oxide (N 2 O) emissions and to elucidate their determining factors on a field-scale basis, N 2 O fluxes and various soil properties were evaluated in a 100- x 100-m onion (Allium cepa L.) field. Nitrous oxid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c2a3a144a2c4665453700c089862272
http://hdl.handle.net/2115/27981
http://hdl.handle.net/2115/27981
Publikováno v:
Soil Science and Plant Nutrition. 39:361-365
The ability of microorganisms to decompose polysaccharides such as cellulose is of considerable importance in terms of the carbon cycle in soil ecosystems. In order to analyze the behavior of cellulose decomposers in soil, a quantitative estimation i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12253d8c6212e158ad27918c4ecdd27a
https://doi.org/10.1080/00380768.1993.10417008
https://doi.org/10.1080/00380768.1993.10417008
Publikováno v:
Soil Science and Plant Nutrition. 39:153-159
A multiple regression method for estimating rates of soil formation in watersheds was described. Distributions of seven major elements (Al, Ca, Fe, K, Mg, Na, and Si) among rocks, soils, river water, precipitation, and vegetation in a watershed were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41252e6557f418fa80775a620a531e09
https://doi.org/10.1080/00380768.1993.10416984
https://doi.org/10.1080/00380768.1993.10416984
Autor:
Kazutake Kyuma, Takahiko Naganawa
Publikováno v:
Soil Science and Plant Nutrition. 38:179-182
The measurement of the rate of CO2 evolution from soil is a convenient method for estimating the soil microbial activity. However, the interpretation of the data of CO2 evolution is difficult, especially in soils with a high pH value, presumably due
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fb0638ef696357c5f72813b72f3ff5d
https://doi.org/10.1080/00380768.1992.10416965
https://doi.org/10.1080/00380768.1992.10416965
Autor:
Kazutake Kyuma, Takahiko Naganawa
Publikováno v:
Soil Science and Plant Nutrition. 37:381-386
Concentration dependence of CO2 evolution from soil was studied under field and laboratory conditions. Under field conditions, when the CO2 concentration was measured with an infrared gas analyzer (IRGA) in a small and column-shaped chamber placed on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b43baee0a2dfde0216b77bcb6dd36a0d
https://doi.org/10.1080/00380768.1991.10415050
https://doi.org/10.1080/00380768.1991.10415050
Autor:
Kyoji Yoda, Goro Iwatsubo, Buared Prachaiyo, Takahiko Naganawa, Sigeru Araki, Virat Tanpibal, Tasnee Attanandana, Katsutoshi Sakurai
Publikováno v:
Tropics. 1:113-129
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99beb63160634700174fae06a4b987a6
https://doi.org/10.3759/tropics.1.113
https://doi.org/10.3759/tropics.1.113
Publikováno v:
Soil Science and Plant Nutrition. 36:587-591
Changes of the soil respiration after partial sterilization by autoclaving or addition of chemicals were analyzed under laboratory conditions at 25°C. Partial sterilization was simulated by mixing autoclaved and fresh soil. When the weight ratio of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::779edfcf96ada851ebc1bffc4e5035f4
https://doi.org/10.1080/00380768.1990.10416795
https://doi.org/10.1080/00380768.1990.10416795
Publikováno v:
Soil Science and Plant Nutrition. 36:141-143
As CO2 is a universal product of living organisms, the measurement of CO2 evolution is important for analyzing biological activity. Recently, the use of an infrared gas analyzer (IRGA) for CO2 measurement has facilitated the assessment of soil biolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f81f496f6544dcddf8b26679986f10e
https://doi.org/10.1080/00380768.1990.10415718
https://doi.org/10.1080/00380768.1990.10415718
Publikováno v:
Japanese Journal of Phytopathology. 56:250-251
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba29c59a9575afad7ab358642c7348b0
https://doi.org/10.3186/jjphytopath.56.250
https://doi.org/10.3186/jjphytopath.56.250
Autor:
Hiroki Yamamoto, Kazutake Kyuma, Haruo Yokoi, Takahiko Naganawa, Kadzunori Tatsuyama, Yutaka Yamamoto
Publikováno v:
Soil Science and Plant Nutrition. 35:509-516
Soil respiration data were obtained using a portable infrared gas analyzer by measuring the CO2 concentration in a small chamber placed on the ground. The rate of respiration showed a geometrical mean of 11.4 (mmol- h-1 -m-2) and ranged from almost 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7bd6f8c2625f4c0584db867845a49f0
https://doi.org/10.1080/00380768.1989.10434786
https://doi.org/10.1080/00380768.1989.10434786