References
- Bremner , J.M. 1965 . “ Inorganic forms of nitrogen ” . In Methods of Soil Analysis (Part 2) , Edited by: Black , C.A. 1179 – 1237 . Madison , Wisconsin : American Society of Agronomy .
- Chairoj , P. , Uehara , Y. , Kimura , M. , Wada , H. and Takai , Y. 1984 . Nitrogen dynamics in the uppermost part of submerged paddy soils in temperate and tropical regions. I. Effect of long-term fertilization treatment . Soil Sci. Plant Nutr. , 30 : 383 – 396 .
- Chichester , F.W. 1969 . Nitrogen in soil organo-mineral sedimentation factions . Soil Sci. , 107 : 356 – 363 .
- Dei , Y. and Maeda , K. 1973 . On soil structure of plowed layer of paddy field . JARQ , 7 ( 2 ) : 86 – 92 .
- Kumada , K. and Asami , T. 1958 . A new method for determining ferrous iron in paddy soils . Soil Plant Food , 3 : 187 – 193 .
- Sakanoue , Y. and Matsubara , K. 1967 . Effect of stirring soil just after water lodging on the mineralization of original organic nitrogen in paddy soils. Studies on harrowing paddy rice field in reference to the fertility of paddy soils (part 2) . J. Sci. Soil Manure, Jpn. , 38 : 70 – 73 . (in Japanese)
- Sakanoue , Y. and Mizunuma , Y. 1962 . Effect of harrowing upon the behavior of nitrogen in well-drained paddy field with gravel layer . J. Sci. Soil Manure, Jpn. , 33 : 386 – 390 . (in Japanese)
- Strickland , J.D.H. and Parsons , T.R. 1968 . A Practical Handbook of Seawater Analysis , 71 – 86 . Ottawa : Fisheries Research Board of Canada .
- Swift , R.S. and Posner , A.M. 1972 . The distribution and extraction of soil nitrogen as a function of soil particle size . Soil Biol. Biochem. , 4 : 181 – 186 .
- Wada , K. 1966 . Qualitative and quantitative determinations of clay minerals . J. Sci. Soil Manure, Jpn. , 37 : 9 – 17 . (in Japanese)
- Yoshino , T. and Onikura , Y. 1980 . Evaluation of nitrogen supplying capacity of paddy soils by an incubation method . J. Cent. Agric. Exp. Sta. , 31 : 73 – 86 . (in Japanese)
- Young , J.L. and Spycher , G. 1979 . Water-dispersible soil organic-mineral particles, I. Carbon and nitrogen distribution . Soil Sci. Soc. Am. J. , 43 : 324 – 328 .