Phylogenetic distribution of bacteria isolated from the floodwater of a Japanese paddy field     

Natsuko NAKAYAMA  Akiko OKABE  Koki TOYOTA  Makoto KIMURA  Susumu ASAKAWA 《Soil Science and Plant Nutrition》2006,52(3):305-312

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Measurement of Fertilizer Leaching from the Root Zone Using an Automated Infiltration Soil Water Sampler in an Unsaturated Sandy Field     

Naoko Higashi  Yasushi Mori  Mitsuhiro Inoue 《Soil Science and Plant Nutrition》2005,51(7):1023-1033

In sandy fields with vegetable cultivation, fertilizer leaching may occur and it should be well-controlled. The development of a direct soil water sampler is necessary to examine solute transport and fertilizer leaching in the vadose zone, since soil water reflects timely monitoring of data more accurately than groundwater. We developed a Suction-Controlled Flux Sampler to collect infiltration soil water in a sandy soil. In the present study, we monitored fertilizer leaching in an unsaturated sandy field during the rainy season, while evaluating the sampling performance of SCFS for the sampling of infiltration water. SCFS directly collected the infiltration water effectively over a period of several months in the sandy field and recorded the Water-Collecting Efficiency from 92 to 115% under various infiltration conditions during a period of 50 d. WCE was affected by the rainfall intensity as well as by previous rainfall, which enhanced WCE. The results obtained from the use of SCFS and several sensors demonstrated that the amount of leached water remained low as long as irrigation was applied according to the cultivation manual. However, an unexpected heavy rainfall event led to fertilizer leaching. The fertilizer leaching trend was effectively monitored by several sensors inserted into the soils, while detailed analysis of the components was performed after collection by using SCFS. Direct access to infiltration water enabled to examine the infiltration process and detailed variations in the amounts of discharged anions. The sensor-equipped monitoring system together with SCFS is suitable for precise management of fertilizer and irrigation application.  相似文献   

Effects of nitric oxide donor and nitric oxide synthase inhibitor on ruminal contractions in conscious sheep     

T. Onaga  H. Okada  S. Hagiwara  C. Nagashima  H. Inoue  W. Korczynski  S. Kato 《Research in veterinary science》2001,71(3):189-195

The present study was planned to evaluate a role of nitric oxide (NO) in the regulation of regular ruminal contractions in conscious sheep. Intravenous infusion of S-nitroso-acetyl-DL-penicillamine (SNAP) at doses of 3-30 nmol kg(-1) min(-1)for 30 minutes inhibited both the amplitude and frequency of ruminal contractions in a dose-dependent manner. However, intravenous infusion of Nomega-nitro-L-arginine-methyl ester (L-NAME) at doses of 0.3-3.0 micromol kg(-1) min(-1)did not alter the basal tone of intraruminal pressure and the amplitude of ruminal contractions. The frequency of contractions was slightly inhibited by L-NAME infusion at 1.0 micromol kg(-1)min(-1). The effects of L-NAME were abolished by simultaneous infusion of L -arginine at 30 micromol kg(-1) min(-1). These results suggest that exogenous NO can diminish the ruminal contractions, while endogenous NO is not involved in the regulatory mechanism of basal tone and regular phasic contractions of the rumen in healthy sheep.  相似文献   

Liver lesions and serum antibodies in mice surviving Tyzzer's disease     

H Nakayama  S Inoue  A Nii  A Yasuda  N Okada  K Fujiwara 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1986,48(1):189-192

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A case report on thrombo-erythroleukosis in a hen     

S Sugano  M Inoue 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1963,25(1):43-52

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Sarcocystis tenella from the sheep in Japan (Protozoa, Apicomplexa)     

Y Imai  I Inoue  M Yamada 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1989,51(4):815-817

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Prevention of calf diarrhea with an immunoglobulin diet in beef herds     

T Murakami  N Hirano  A Inoue  K Tsuchiya  K Chitose  K Ono  T Yanagihara 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1986,48(5):879-885

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An equine case of granular cell tumor with chondroplasia     

S Inoue  N Okada  K Midoro  H Nakayama  R Takahashi  K Fujiwara 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1987,49(3):581-583

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Histopathology of spermatocele of fowl (author's transl)]     

M Nakamura  M Inoue 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1979,41(1):41-51

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Precise, simple screening for resistance in potato varieties to common scab using paper pots     

Akira Kobayashi  Shigeo Naito  Yuki O. Kobayashi  Shogo Tsuda  Akiko Ohara-Takada  Motoyuki Mori 《Journal of General Plant Pathology》2005,71(2):139-143

Resistance to common scab pathogen Streptomyces turgidiscabies of seven potato varieties was compared in the field with a newly developed paper pot method. Seedlings raised in soil in paper pots containing inocula at 1 × 10³ to 10⁷cfu/g soil were transplanted into a scab-free field and grown for 3 months. The disease severity of the seven varieties in the field trials differed in iteration and from year to year, even though their resistance levels were approximately similar at the expected levels. With the paper pot method, the seven varieties had different resistance levels, which were almost completely consistent with the results of the field trials, at more than 1 × 10⁵cfu/g soil. Significant differences in disease severity between resistant and susceptible varieties were observed (P = 0.05) for 2 years, and the resistance level of the varieties was elucidated.  相似文献