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WATANABE, I. Azolla-Anabaena symbiosis - its physiology and use in tropical agriculture. In: DOMMERGUES, Y.R.; DIEM, H.G. Microbiology of tropical soils and plant productivity. Hugue: Martinus Nijhoff / Dr. W. Junk Publishers, 1982. p.169-185.
Biblioteca(s): Embrapa Pantanal.

WATANABE, I. Azolla and its use in lowland rice culture. Soil Microbe, v.20, p.1-10, 1978.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I. Errors related to 15N dilution method to estimate nitrogen fixation. In: International Symposium on the use of Stable Isotopes in Plant Nutrition, Soil Fertility and Environmental Studies. Vienna, Austria., v., p.1-6, 1990.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I. Non-symbiotic nitrogen fixation in rice and rice paddies. Biological Nitrogen Fixation in Farming Systems of Humid Tropics, v., p. 20-23, 1975.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I. Nitrogen fixation by nonlegumes in tropical agriculture with special reference to wetland rice. In: 3rd Inter. Symp. N2 Fixation with Non-legumes., v., p.2-8, 1984.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I. Soil and crop management. In: IRRI Annual Report, v., p. 155-178, 1974.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; LEE, L. Biological nitrogen fixation in paddy fields with special reference to the root zone of rice. In: Soil Microbiology and Plant Nutrition, v., p.545-557, 1979.
Biblioteca(s): Embrapa Agrobiologia.

INUBUSHI, K.; WATANABE, I. Dynamics of available nitrogen in paddy soils. II. Mineralized N of chloroform fumigated soil as a nutrient source for rice. Soil Sci. Plant Nutr., v. 32, n. 4, p. 561-578, 1986.
Biblioteca(s): Embrapa Agrobiologia.

ITO, O.; WATANABE, I. Immobilization, mineralization and availability to rice plants of nitrogen derived from heterotrophic nitrogen fixation in flooded soil. Soil Sci. Plant Nutr., v. 27, n. 2, p. 169-176, 1981.
Biblioteca(s): Embrapa Agrobiologia.

VENTURA, W.; WATANABE, I. Green manure production of Azolla microphylla and Sesbania rostrata and their long-term effects on rice yields and soil fertility. Biol. Fertil. Soils, v. 15, n. 4, p. 241-248, 1993.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; FURUSAKA, C. Microbial ecology of flooded rice soils. In: Advances in Microbial Ecology, v., p.125-168, 1980.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; VENTURA, W. Nitrogen fixation by blue-green algae associated with deepwater rice. Curr. Sci., v.51, n.9, p.462-465, 1982.
Biblioteca(s): Embrapa Agrobiologia.

LIN, C.; WATANABE, I. A new method for obtaining Anabaena-free Azolla. New Phytol., v. 108, n. 3, p. 341-344, 1988.
Biblioteca(s): Embrapa Agrobiologia.

LIN, C.; WATANABE, I. A new method for obtaining Anabaena-free Azolla. New Phytologist, v.108, n.3, p.341-344, 1988.
Biblioteca(s): Embrapa Pantanal.

WATANABE, Y.; WATANABE, I. Effects of fasting on lipid and fatty acid composition of plasma of goats. The Japanese Journal of Veterinary Science v. 51, n. 1, p. 1-5, Jan. 1981.
Biblioteca(s): Embrapa Caprinos e Ovinos.

SAITO, M.; WATANABE, I. Organic matter production in rice field flood water. Soil Sci. Plant Nutr., v.24, n.3, p.427-440, 1978.
Biblioteca(s): Embrapa Agrobiologia.

ALI, S.; WATANABE, I. Response of Azolla to P,K and Zn in different wetland rice soils in relation to chemistry of floodwater. Soil Sci. Plant Nutr., v. 32, n. 2, p. 239-253, 1986.
Biblioteca(s): Embrapa Agrobiologia.

LIN, C.; WATANABE, I. Study on the association between Anabaena azollae and Azolla microphylla during the germination of megasporocarps. Symbiosis, v.5, p.199-208, 1988.
Biblioteca(s): Embrapa Pantanal.

LADHA, J. K.; WATANABE, I. Antigenic similatory among Anabaena azollae separated from different species of Azolla. Biochem. Biophys. Res. Commun., v.109, n.3, p.675-682, 1982.
Biblioteca(s): Embrapa Agrobiologia.

MASKEY, S. L; WATANABE, I. Difference in survival of uptake hydrogenase positive and negative strains of Bradyrhizobium japonicum in flooded and non-flooded soil. Soil Science and Plant Nutrition, v.38, n.2, p.361-364, July 1992.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Soja.

WATANABE, I.; BERJA, N. S. The growth of four species of Azolla as affected by temperature. Aquatic Botany, v.15, p.175-185, 1983.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Pantanal.

WATANABE, I.; ROGER, P. A. Nitrogen fixation in wetland rice field. In: Current Developments in Biological Nitrogen Fixation, v., p.237-276, 1984.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; CABRERA, D. R. Nitrogen fixation associated with the rice plant grown in water culture. Appl. Environ. Microbiol., v.37, n.3, p.373-378, 1979.
Biblioteca(s): Embrapa Agrobiologia.

BARRAQUIO, W. L.; WATANABE, I. New type of nitrogen-fixing bacterium from rice roots and its distribution. Nature, v.277, p.565-600, 1979.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; LIU, C. C. Improving nitrogen-fixing systems and integrating them into sustainable rice farming. Plant Soil, v. 141, n. 1, p. 57-67, 1992.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; BARRAQUIO, W. L. Low levels of fixed nitrogen required for isolation of free-living N2-fixing organisms from rice roots. Nature, v.277, p.565-566, 1979.
Biblioteca(s): Embrapa Agrobiologia.

ROGER, P. A.; WATANABE, I. Technologies for utilizing biological nitrogen fixation in wetland rice: potentialities, current usage, and limiting factors. Fert. Res., v.9, p.39-77, 1986.
Biblioteca(s): Embrapa Agrobiologia.

BARRAQUIO, W. L.; WATANABE, I. Occurrence of aerobic nitrogen fixing bacteria in wetland and dryland plants. Soil Sci. Plant Nutr., v.27, n.1, p.121-125, 1981.
Biblioteca(s): Embrapa Agrobiologia.

LEE, K. K.; WATANABE, I. Problems of the acetylene reduction technique applied to water saturated paddy soils. Appl. Environ. Microbiol., v.34, n.6, p.654-660, 1977.
Biblioteca(s): Embrapa Agrobiologia.

ROGER, P. A.; WATANABE, I. Recent studies on free-living blue-green algae and azolla at the international rice research institute. In: 2nd International Conference of the African Association, Cairo., v., p.1-12, 1986.
Biblioteca(s): Embrapa Agrobiologia.

ROGER, P. A.; WATANABE, I. Research on algae, blue-green algae, and phototrophic nitrogen fixation at the International Rice Research Institute (1963-1981), summarization, problems, and prospects. IRPS, n.78, p.2-21, 1982.
Biblioteca(s): Embrapa Pantanal.

DURBIN, K. J.; WATANABE, I. Sulfate-reducing bacteria and nitrogen fixation in flooded rice soil. Soil Biol. Biochem., v.12, n.1, p.11-14, 1980.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; CABRERA, D. R. A water culture technique to study nitrogen fixation associated with the rice plants. Environ. Appl. Microbiol., v., p.-, 1978.
Biblioteca(s): Embrapa Agrobiologia.

SUBUDHI, B. P. R.; WATANABE, I. Differential phosphorus requirements of Azolla species and strains in phosphorus-limited continuous culture. Soil Sci. Plant Nutr., v.27, n.2, p.237-248, 1981.
Biblioteca(s): Embrapa Agrobiologia.

FUJIWARA, K.; KOZAI, T.; WATANABE, I. Development of a photoautotrophic tissue culture system for shoots and or plantlets at rooting and acclimatization stages. Acta Horticulturae, v.230, p.153-158, 1988.
Biblioteca(s): Embrapa Tabuleiros Costeiros.

ITO, O.; CABRERA, D.; WATANABE, I. Fixation of dinitrogen-15 associated with rice plants. Appl. Environ. Microbiol., v.39, n.3, p.554-558, 1980.
Biblioteca(s): Embrapa Agrobiologia.

GOWDA, T. K. S.; WATANABE, I. Hydrogen-suported N2 fixation of Pseudomonas sp. and Azospirillum lipoferum under free-living conditions and in association with rice seedlings. Can. J. Microbiol., v.31, n.4, p.317-321, 1985.
Biblioteca(s): Embrapa Agrobiologia.

ADEBAYO, A.; WATANABE, I.; LADHA, J. K. Epiphytic occurrence of Azorhizobium caulinodans and other rhizobia on host and nonhost legumes. Appl. Environ. Microbiol., v. 55, n. 9, p. 2407-2409, 1989.
Biblioteca(s): Embrapa Agrobiologia.

SIDDARAMAPPA, R.; TIROL, A. C.; WATANABE, I. Fate of carbofuran under flooded soil conditions. Los Baños: IRRI, 1977. 16 p. (IRRI Saturday Seminar)
Biblioteca(s): Embrapa Arroz e Feijão.

WATANABE, I.; PADRE JR, B. C. Inorganic nitrogen movement in tropical soil. I. Nitrification and nitrogen loss in poorly drained soil during rainy season. Soil Soc. Plant Nutr., v.23, n.2, p.217-224, 1977.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; PADRE JR, B. C. Inorganic nitrogen movement in tropical soils. II. The fate of ammonium fertilizer in well and poorly drained soils in the rainy season. Soil Sci. Plant Nutr., v.25, n.4, p.627-635, 1979.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Amazônia Ocidental.

YONEYAMA, T.; LADHA, J. K.; WATANABE, I. Nodule bacteroids and Anabaena: natural 15N enrichment in the legume-Rhizobium and Azolla-Anabaena symbiotic systems. J. Plant Physiol., v.127, p.251-259, 1987.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Pantanal.

YONEYAMA, T.; LADHA, J. K.; WATANABE, I. Nodule bacteroids and Anabaena: natural N enrichment in the legume-rhizobium and Azolla-Anabaena symbiotic systems. Journal Plant Physiology, v.127, p.251-259, 1987.
Biblioteca(s): Embrapa Pantanal.

LADHA, J. K.; WATANABE, I.; SAONO, S. Nitrogen fixation by leguminous green manure and practices for its enhancement in tropical lowland rice. In: Sustainable Agriculture: Green Manure in Rice Farming, v., p.165-183, 1988.
Biblioteca(s): Embrapa Agrobiologia.

DAROY, M. L. G.; WATANABE, I. Nitrogen fixation by wetland rice grown in acid soil. Phil. J. Biol., v.11, n.2, p.339-348, 1982.
Biblioteca(s): Embrapa Agrobiologia.

KROCK, T.; ALKAMPER, J.; WATANABE, I. Effect of an Azolla cover on the conditions in floodwater. Journal Agronomy & Crop Science, v.161, n.3, p.185-189, 1988.
Biblioteca(s): Embrapa Pantanal.

CHIU, C.; WATANABE, I.; YOSHIDA, T. Estimation of N2 fixation of soybean by comparison of different 15N labeling methods. Soil Sci. Plant Nutr., v. 36, n. 3, p. 383-388, 1990.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; CHIU, C.; YOSHIDA, T. Estimation of N2 fixation in soybean and cowpea by using soil residual 15N. Soil Sci. Plant. Nutr., v. 36, n. 3, p. 375-381, 1990.
Biblioteca(s): Embrapa Agrobiologia.

ROGER, P. A.; TIROL, A.; WATANABE, I. Chemical composition of cultures and natural samples of N2-fixing blue-green algae from rice fields. Biology and Fertility of Soils, v.2, n.3, p.131-146, 1986.
Biblioteca(s): Embrapa Pantanal.

WATANABE, I.; CABRERA, D.; BARRAQUIO, W. L. Contribution of basal portion of shoot to N2 fixation associated with wetland rice. Plant Soil, v.59, n.3, p.391-398, 1981.
Biblioteca(s): Embrapa Agrobiologia.

KROCK, T.; ALKAMPER, J.; WATANABE, I. Temperature regime of Azolla under rice. Journal Agronomy & Crop Science, v.161, n.5, p.316-321, 1988.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Pantanal.

WATANABE, I.; LEE, K.; GUZMAN, M. DE. Seasonal change of N2 fixing rate in rice field assayed by in situ acetylene reduction technique. II. Estimate of nitrogen fixation associated with rice plants. Soil Sci. Plant Nutr., v.24, n.4, p.465-471, 1978.
Biblioteca(s): Embrapa Agrobiologia.

GOWDA, T. K. S.; WATANABE, I. Stimulating effect of hydrogen on N2 fixation in association with field-grown wetland rice. Can. J. Microbiol., v.31, n.6, p.503-507, 1985.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; TABUCHI, K.; NAKANO, H. Reponse of soybean to supplemental nitrogen after flowering. In: SYMPOSIUM [ON] SOYBEAN IN TROPICAL AND SUBTROPICAL CROPPING SYSTEMS, 1983, Tsukuba. Proceedings... Shanhua: AVRDC, 1985. p.301-308. Editado por S. Shanmugasundaram, E.W. Sulzberger.
Biblioteca(s): Embrapa Soja.

WATANABE, I.; NAKANO, H.; TABUCHI, K. Supplemental nitrogen fertilizer to soybeans. I. Effect of side-dressing at early ripening stage on yield, yield components and protein content of seeds. Japan. J. Crop Sci., v.52, n.3, p.291-298, 1983.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; LIN, C.; SANTIAGO VENTURA, T. Responses to high temperature of the Azolla-Anabaena association, determined in both the fern and in the cyanobacterium. New Phytol., v. 111, n. 4, p. 625-630, 1989.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; LIN, C.; SANTIAGO-VENTURA, T. Responses to high temperature of the Azolla-Anabaena association, determined in both the fern and in the cyanobacterium. New Phytologist, v.111, n.4, p.625-630, 1989.
Biblioteca(s): Embrapa Pantanal.

GOWDA, T. K. S.; WATANABE, I. Variation in the incidence of H2-oxidizing chemolithotrophic bacteria in rice grown under different cultivation conditions. Plant Soil, v.85, p.97-105, 1985.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; WATANABE, I.; ROGER, P. A. Biological nitrogen fixation in wetland rice. In: Proceedings of a Conference on Women in Rice Farming Systems., v., p.481-487, 1983.
Biblioteca(s): Embrapa Agrobiologia.

GRANT, I. F.; ROGER, P. A.; WATANABE, I. Ecosystem manipulation for increasing biological N2 fixation by blue-green algae (Cyanobacteria) in lowland rice fields. Biological Agriculture and Horticulture, v.3, n.2/3, p.299-315, 1986.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Pantanal.

WATANABE, I.; YONEYAMA, T.; PADRE, B.; LADHA, J. K. Difference in natural abundance of 15N in several rice (Oryza sativa L.) varieties: Application for evaluating N2 fixation. Soil Sci. Plant Nutr., v.33, n.3, p.407-415, 1987.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; BARRAQUIO, W. L.; WATANABE, I. Immunological techniques to identify Azospirillum associated with wetland rice. Can. J. Microbiol., v.28, n.5, p.478-485, 1982.
Biblioteca(s): Embrapa Agrobiologia.

LEE, K. K.; HOLST, I.; WATANABE, I.; APP, A. A. Gas transport through rice. Soil Sci. Plant Nutr., v. 27, n. 2, p. 151-158, 1981.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; VENTURA, W.; MASCARINA, G.; ESKEW, D. L. Fate of the Azolla spp. and urea nitrogen applied to wetland rice (Oryza sativa L.). Biol. Fertil. Soils, v. 8, n. 2, p. 102-110, 1989.
Biblioteca(s): Embrapa Agrobiologia.

NAYAK, D. N.; LADHA, J. K.; WATANABE, I. The fate of marker Azospirillum lipoferum inoculated into rice and its effect on growth, yield and N2 fixation of plants studies by acetylene rduction, 15N2 feeding and 15N dilution techniques. Biol. Fertil. Soils, v.2, p.7-14, 1986.
Biblioteca(s): Embrapa Agrobiologia.

TIROL, A. C.; ROGER, P. A.; WATANABE, I. Fate of nitrogen from a blue-green alga in a flooded rice soil. Soil Sci. Plant Nutr., v.28, n.4, p.559-569, 1982.
Biblioteca(s): Embrapa Agrobiologia.

BENCKISER, G.; OTTOW, J. C. G.; WATANABE, I.; SANTIAGO, S. The mechanism of excessive iron-uptake (iron toxicity) of wetland rice. Journal of Plant Nutrition, v.7, n.1/5, p.177-185, 1984.
Biblioteca(s): Embrapa Pantanal.

BARRAQUIO, W. L.; LADHA, J. K.; WATANABE, I. Nitrogen-fixing activity and bacteria associated with wetland and dryland rice. Biotrop. Spec. Publ., v.23, p.139-148, 1984.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; CRASWELL, E. T.; APP, A. A. Nitrogen cycling in wetland rice fields in South-East and East Asia. In: Nitrogen cycling in South East Asian wet monsoonal ecosystems., v., p.4-17, 1981.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; DATTA, S. K. DE; ROGER, P. A. Nitrogen cycling in wetland rice soils. In: International Symposium on Advances in Nitrogen Cycling in Agricultural Ecosystem., v., p.1-23, 1987.
Biblioteca(s): Embrapa Agrobiologia.

BARRAQUIO, W. L.; LADHA, J. K.; WATANABE, I. Isolation and identification of N2-fixing Pseudomonas associated with wetland rice. Can. J. Microbiol., v.29, n.8, p.867-873, 1983.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; BARRAQUIO, W. L.; WATANABE, I. Isolation and identification of nitrogen-fixing Enterobacter clocae and Klebsiella panticola associated with rice plants. Can. J. Microbiol., v.29, n.10, p.1301-1308, 1983.
Biblioteca(s): Embrapa Agrobiologia.

HERD, Y. R.; CUTTER, E. G.; WATANABE, I. A light and electron microscopic study microsporo genesis in azolla microphylla. Proc. R. Soc. Edinburgh. Sect. B, v.86, p.53-58, 1985.
Biblioteca(s): Embrapa Agrobiologia.

ADACHI, K.; WATANABE, I.; KOBAYASHI, M.; TAKAHASHI, E. Effect of application of glucose, cellulose, and rice straw on nitrogen fixation (acetylene reduction and soil-nitrogen components) in anaerobic soil. Soil Sci. Plant Nutr., v. 35, n. 2, p. 235-243, 1989.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; SURUBHI, B. P. R.; AZIZ, T. Effect of neem cake on the population and nitrogen fixing activity of blue-green algae in flooded soil. Current Science, v.50, n.21, p.937-939, 1981.
Biblioteca(s): Embrapa Pantanal.

WATANABE, I.; DEGUZMAN, M. R.; CABRERA, D. A. The effect of nitrogen fertilizer on N2 fixation in the paddy field measured by insitu acetylene reduction assay. Plant Soil, v.59, n.1, p.135-140, 1981.
Biblioteca(s): Embrapa Agrobiologia.

CHOLITKUL, W.; TANGCHAM, B.; SANGTONG, P.; WATANABE, I. Effect of phosphorus on N2-fixation as measured by the field acetylene reduction technique in Thailand long-term fertility plots. Soil Sci. Plant Nutr., v.26, n.2, p.291-299, 1980.
Biblioteca(s): Embrapa Agrobiologia.

GRANT, I. F.; ROGER, P. A.; WATANABE, I. Effect of grazer regulation and algal inoculation on photodependent nitrogen fixation in a wetland rice field. Biol. Fertil. Soils, v.1, n.2, p.61-72, 1985.
Biblioteca(s): Embrapa Agrobiologia.

PAREEK, R. P.; LADHA, J. K.; WATANABE, I. Estimating N2 fixation by Sesbania rostrata and S. cannabina (syn. S. aculeata) in lowland rice soil by the 15N dilution method. Biol. Fertil. Soils, v. 10, n. 2, p. 77-88, 1990.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; SO, R. B.; WATANABE, I. Composition of Azospirillum species associated with wetland rice plant grown in different soils. Plant Soil, v. 102, n. 1, p. 127-129, 1987.
Biblioteca(s): Embrapa Agrobiologia.

ROGER, P. A.; TIROL, A.; ARDALES, S.; WATANABE, I. Chemical composition of cultures and natural samples of N2-fixing blue-green algae from rice fields. Biol. Fertil. Soils, v. 2, p. 131-146, 1986.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; LEE, K. K.; ALIMAGNO, B. V. Seasonal change of N2-fixing rate in rice field assayed by in situ acetylene reduction technique. I. Experiments in long-term fertility plots. Soil Sci. Plant Nutr., v.24, n.1, p.1-13, 1978.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; LAPIS, M. T.; OLIVEROS, R.; VENTURA, W. Improvement of phosphate fertilizer application to Azolla. Soil Sci. Plant Nutr., v. 34, n. 4, p. 557-569, 1988.
Biblioteca(s): Embrapa Agrobiologia.

BENCKISER, G.; OTTOW, J. C. G.; SANTIAGO, S.; WATANABE, I. Physicochemical characterization of iron-toxic soils in some Asian countries. Philippines: IRRI, 1982. 11 p. il. (IRRI. Research paper, 85).
Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Pantanal.

WATANABE, I.; BARRAQUIO, W. L.; DAROY, M. L. Predominance of hydrogen-utilizing bacteria among N2-fixing bacteria in wetland rice roots. Can. J. Microbiol., v.28, n.9, p.1051-1054, 1982.
Biblioteca(s): Embrapa Agrobiologia.

NAKANO, H.; WATANABE, I.; KUWAHARA, M.; TABUCHI, K. Supplemental nitrogen fertilizer to soybean. IV. Influences of soil conditions on the yield response to supplemental nitrogen. Japan J. Crop Sci., v.58, n.3, p.331-336, 1989.
Biblioteca(s): Embrapa Agrobiologia.

ROGER, P. A.; TIROL, A.; GRANT, I.; WATANABE, I. Soil and crop management-effect of surface application of straw on phototrophic nitrogen fixation. Int. Rice Res. Newsl., v.7, n.3, p.16-17, 1982.
Biblioteca(s): Embrapa Agrobiologia.

ROGER, P. A.; SANTIAGO ARDALES, S.; REDDY, P. M.; WATANABE, I. The abundance of heterocystous blue-green algae in rice soils and inocula used for application in rice fields. In: BGA in Rice Soils, v., p.1-16, .
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; PADRE, A. T.; PUNZALAN, G. C.; WATANABE, I.; DE DATTA, S. K. Ability of wetland rice to stimulate biological nitrogen fixation and utilize soil nitrogen. In: Nitrogen Fixation: Hundred Years After., v., p.747-752, 1988.
Biblioteca(s): Embrapa Agrobiologia.

FRENEY, J. R.; DENMEAD, O. T.; WATANABE, I.; CRASWELL, E. T. Ammonia and nitrous oxide losses following applications of ammonium sulfate to flooded rice. Aust. J. Agric. Res., v.32, n.1, p.37-45, 1981.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; ROGER, P. A.; LADHA, J. K.; HOVE, C. van. Biofertilizer germplasm collections at IRRI. Manila: IRRI, 1992. 66 p.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia.

KULASOORIYA, S. A.; ROGER, P. A.; BARRAQUIO, W. L.; WATANABE, I. Epiphytic nitrogen fixation on deepwater rice. Soil Sci. Plant Nutr., v.27, n.1, p.19-27, 1981.
Biblioteca(s): Embrapa Agrobiologia.

ROGER, P. A.; KULASOORIYA, S. A.; BARRAQUIO, W. L.; WATANABE, I. Epiphytic nitrogen fixation on lowland rice plants. In: WETSELAAR, M.R. Nitrogen cycling in south-east Asian wet monsonal ecosystem. Canebra, Australia. Australian: Academy of Science, 1981. p.62-66.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Pantanal.

APP, A. A.; WATANABE, I.; VENTURA, T. S.; BRAVO, M.; JUREY, C. D. The effect of cultivated and wild rice varieties on the nitrogen balance of flooded soil. Soil Sci., v.141, n.6, p.448-452, 1986.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; TIROL PADRE, A.; DAROY, M. L. G.; PUNZALAN, G.; WATANABE, I. The effects on N2 fixation (C2H2 reduction), bacterial population and rice plant growth of two modes of straw application to a wetland rice field. Biol. Fertil. Soils, v.5, n.2, p.106-111, 1987.
Biblioteca(s): Embrapa Agrobiologia.

BARRAQUIO, W. L.; PADRE JR, B. C.; WATANABE, I.; KNOWLES, R. K. Nitrogen fixation by Pseudomonas saccharophila doudoroff ATCC 15946. J. Gen. Microbiol., v. 132, n. 2, p. 237-242, 1986.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; BARRAQUIO, W. L.; GUZMAN, M. R. DE; CABRERA, D. A. Nitrogen-fixing (acetylene reduction) activity and population of aerobic heterotrophic nitrogen-fixing bacteria associated with wetland rice. Appl. Environ. Microbiol., v.37, n.5, p.813-819, 1979.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; TIROL PADRE, A.; PUNZALAN, G. C.; WATANABE, I. Nitrogen-fixing (C2H2-reducing) activity and plant growth characters of 16 wetland rice varieties. Soil Sci. Plant Nutr., v.33, p.187-200, 1987.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; SO, R.; LADHA, J. K.; FUJIMURA, Y. K.; KURAISHI, H. A new nitrogen-fixing species of pseudomonad: Pseudomonas diazatrophicus sp. nov. isolated from the root of wetland rice. Canadian Journal Microbiology, v.33, p.670-678, 1987.
Biblioteca(s): Embrapa Tabuleiros Costeiros.

WATANABE, I.; SO, R.; LADHA, J. K.; KATAYAMA FUJIMURA, Y.; KURAISHI, H. A new nitrogen-fixing species of pseudomonad: Pseudomonas diazotrophicus sp. nov. isolated from the root of wetland rice. Can. J. Microbiol., v.33, n.8, p.670-678, 1987.
Biblioteca(s): Embrapa Agrobiologia; Embrapa Pantanal.

BARRAQUIO, W. L.; DAROY, M. L. G.; TIROL, A. C.; LADHA, J. K.; WATANABE, I. Laboratory acetylene reduction assay for relative measurement of N2-fixing activities associated with field-grown wetland rice plants. Plant Soil, v. 90, p. 359-372, 1986.
Biblioteca(s): Embrapa Agrobiologia.

SANTIAGO VENTURA, T.; BRAVO, M.; DAEZ, C.; VENTURA, V.; WATANABE, I.; APP, A. A. Effects of N-fertilizers, straw, and dry fallow on the nitrogen balance of a flooded soil planted with rice. Plant Soil, v.93, p.405-411, 1986.
Biblioteca(s): Embrapa Agrobiologia.

BENCKISER, G.; SANTIAGO, S.; NEUE, H. U.; WATANABE, I.; OTTOW, J. C. G. Effect of fertilizer on exudation, dehydrogenase activity, non-reducing populations and Fe++ formation in the rhizosphere of rice (Oryza sativa L.) in relation to relation to non toxicity. Plant Soil, v. 79, p. 305-316, 1984.
Biblioteca(s): Embrapa Agrobiologia.

BECKER, M.; LADHA, J. K.; WATANABE, I.; OTTOW, J. C. G. Seeding vs. vegetative propagations of the stem-nodulating green manure Sesbania rostrata. Biol. Fertil. Soils, v. 6, n. 4, p. 279-281, 1988.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; TIROL, A. C.; DAROY, M. L. G.; CALDO, G.; VENTURA, W.; WATANABE, I. Plant-associated N2 fixation (C2H2-reduction) by five rice varieties, and relationship with plant growth characters as affected by straw incorporation. Soil Sci. Plant. Nutr., v.32, n.1, p.91-106, 1986.
Biblioteca(s): Embrapa Agrobiologia.

TIROL PADRE, A.; LADHA, J. K.; PUNZALAN, G. C.; WATANABE, I. A plant sampling procedure for acetylene reduction assay to detect rice varietal differences in ability to stimulate N2 fixation. Soil Biol. Biochem., v. 20, n. 2, p. 175-183, 1988.
Biblioteca(s): Embrapa Agrobiologia.

TIROL-PADRE, A.; LADHA, J. K.; PUNZALAN, G. C.; WATANABE, I. A plant sampling procedure for acetylene reduction assay to detect rice varietal differences in ability to stimulate N2 fixation. Soil Biology Biochemistry, v.20, n.2, p.175-183, 1988.
Biblioteca(s): Embrapa Pantanal.

BARRAQUIO, W. L.; GUZMAN, M. R. DE; BARRION, M.; WATANABE, I. Population of aerobic heterotrophic nitrogen-fixing bacteria associated with wetland and dryland rice. Appl. Environ. Microbiol., v.43, n.1, p.124-128, 1982.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; VENTURA, W.; CHOLITKUL, W.; ROGER, P. A.; KULASOORIYA, S. A. Potential of biological nitrogen fixation in deepwater rice. In: Proceedings of the 1981 International Deepwater Rice Workshop.IRRI, v., p.191-200, 1982.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; TIROL, A. C.; VENTURA, W.; CALDO, G.; DAROY, M. L.; WATANABE, I. Rice plant associated N2 fixation and selection of rice varieties with higher N2 fixation. In: Nitrogen Fixation Research Progress., v., p.-, 1985.
Biblioteca(s): Embrapa Agrobiologia.

NAKANO, H.; KUWAHARA, M.; WATANABE, I.; TABUCHI, K.; NAGANOMA, H.; HIGASHI, T.; HIRATA, Y. Supplemental nitrogen fertilizer to soybeans. II. Effect of application rate and placement on seed yield and protein yield. Japan. J. Crop Sci., v.56, n.3, p.329-336, 1987.
Biblioteca(s): Embrapa Agrobiologia.

LADHA, J. K.; GARCIA, M.; MIYAN, S.; PADRE, A. T.; WATANABE, I. Survival of Azorhizobium caulinodans in the soil and Rhizosphere of wetland rice under Sesbania rostrata-rice rotation. Appl. Environ. Microbiol., v. 55, n. 2, p. 454-460, 1989.
Biblioteca(s): Embrapa Agrobiologia.

BARRAQUIO, W. L.; GUZMAN, M. R. DE; CABRERA, D. A.; WATANABE, I. Studies on nitrogen fixation in association with rice. In: IRRI Saturday Seminar, v., p.1-10, 1977.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; ESPINAS, C. R.; BERJA, N. S.; ALIMAGNO, B. V. Utilization of the Azolla-Anabaena complex as a nitrogen fertilizer for rice. In: IRRI Research Paper Series, v., p.1-15, 1977.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; LEE, K. K.; ALIMAGNO, B. V.; SATO, M.; ROSARIO, D. C. DEL; GUZMAN, M. R. DE. Biological nitrogen fixation in paddy field studied by in situ acetylene-reduction assays. IRRI Res. Paper, v., n.3, p.1-16, 1977.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I.; LEE, K. K.; ALIMAGNO, B. V.; SATO, M.; ROSARIO, D. C. del; GUZMAN, M. R. de. Biological nitrogen fixation in paddy field studied by in situ acetylene-reduction assays. Ecological Bulletin, v.26, p.304, 1978.
Biblioteca(s): Embrapa Pantanal.

WATANABE, I.; KE-ZHI, B.; BERJA, N. S.; ESPINAS, C. R.; ITO, O.; SUBODHI, B. P. R. The Azolla-anabaena complex and its use in rice culture. IRPS, n.69, p.1-11, 1981.
Biblioteca(s): Embrapa Pantanal.

APP, A. A.; WATANABE, I.; ALEXANDER, M.; VENTURA, W.; DAEZ, C.; SANTIAGO, T.; de DATTA, S. K. Nonsymbiotic nitrogen fixation associated with the rice plant in flooded soils. Soil Sci., v. 130, n. 5, p. 283-289, 1980.
Biblioteca(s): Embrapa Agrobiologia.

CALLO JR, D. P.; DILAG JR, R. T.; NECESARIO, R. S.; WOOD, D. M.; TAGALOG, F. C.; GAPASIN, D. P.; RAMIREZ, C. M.; WATANABE, I. A 14-day azolla adaptability test on farmer's fields. Phil. J. Crop Sci., v.10, n.3, p.129-133, 1985.
Biblioteca(s): Embrapa Agrobiologia.

APP, A.; SANTIAGO, T.; DAEZ, C.; MENGUITO, C.; VENTURA, W.; TIROL, A.; PO, J.; WATANABE, I.; DATTA, S. K. DE; ROGER, P. Estimation of the nitrogen balance for irrigated rice and the contribution of phototrophic nitrogen fixation. Field Crops Res., v.9, p.17-27, 1984.
Biblioteca(s): Embrapa Agrobiologia.

WATANABE, I. A. M.; SILVA, F. de C.; PEREIRA, H. S.; MELO, L. C.; FARIA, L. C. de; SOUZA, T. L. P. O. de; WENDLAND, A. Avaliação da qualidade comercial dos grãos de linhagens de feijoeiro-comum carioca com ciclo precoce. In: SEMINÁRIO JOVENS TALENTOS, 8., 2014, Santo Antônio de Goiás. Coletânea dos resumos apresentados. Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2014. p. 41. (Embrapa Arroz e Feijão. Documentos, 306).
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/135108/1/p41.pdf
Biblioteca(s): Embrapa Arroz e Feijão.

SILVA, F. C.; PEREIRA, H. S.; MELO, P. G. S.; MELO, L. C.; FARIA, L. C.; SOUZA, T. L. P. O.; CARVALHO, H. W. L.; ALMEIDA, V. M.; BRAZ, A. J. B. P.; WENDLAND, A.; MAGALDI, M. C. S.; SOUZA, N. P.; C. DIAZ, J. L.; WATANABE, I. A. M.; MENDONÇA, F. R. Estabilidade e adaptabilidade de linhagens elite de feijoeiro-comum carioca para teor de proteína e tempo de cocção. In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 11., 2014, Londrina. Tecnologias para a sustentabilidade da cultura do feijão: anais. Londrina: IAPAR, 2014. CONAFE
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/109874/1/54.pdf
Biblioteca(s): Embrapa Arroz e Feijão.

WATANABE, I. A. M.; SILVA, F. C.; PEREIRA, H. S.; MELO, L. C.; FARIA, L. C. de; SOUZA, T. L. P. O.; CARVALHO, H. W. L.; ALMEIDA, V. M.; MELO, C. L. P.; WENDLAND, A.; MAGALDI, M. C. S.; SOUZA, N. P.; DIAZ, J. L. C. Avaliação da qualidade comercial dos grãos de linhagens de feijoeiro-comum carioca com ciclo precoce. In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 11., 2014, Londrina. Tecnologias para a sustentabilidade da cultura do feijão: anais. Londrina: IAPAR, 2014. CONAFE
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/108376/1/251.pdf
Biblioteca(s): Embrapa Arroz e Feijão.

WATANABE, I. A. M.; SILVA, F. de C.; MELO, L. C.; FARIA, L. C. de; SOUZA, T. L. P. O. de; CARVALHO, H. W. L. de; COSTA, A. F. da; MELO, C. L. de; ALMEIDA, V. M. de; AGUIAR, M. S. de; MAGALDI, M. C. de S.; PEREIRA, H. S. Qualidade comercial dos grãos em linhagens de feijoeiro carioca com ciclo precoce. In: SEMINÁRIO JOVENS TALENTOS, 9., 2015, Santo Antônio de Goiás. Coletânea dos resumos apresentados. Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2015. p. 74. (Embrapa Arroz e Feijão. Documentos, 309).
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/141521/1/CNPAF-2015-p74.pdf
Biblioteca(s): Embrapa Arroz e Feijão.

WATANABE, I. A. M.; SILVA, F. de C.; MELO, L. C.; FARIA, L. C. de; SOUZA, T. L. P. O. de; AGUIAR, M. S. de; CARVALHO, H. W. L. de; COSTA, A. F. da; MELO, C. L. P. de; ALMEIDA, V. M. de; MAGALDI, M. C. de S.; CABRERA DIAZ, J. L.; PEREIRA, H. S. Qualidade comercial dos grãos em linhagens de feijoeiro-comum carioca com ciclo precoce. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 8., 2015, Goiânia. O melhoramento de plantas, o futuro da agricultura e a soberania nacional: anais. Goiânia: UFG: SBMP, 2015.
URL: https://ainfo.cnptia.embrapa.br/digital/bitstream/item/128472/1/CBMP-686.pdf
Biblioteca(s): Embrapa Arroz e Feijão.