共 13 条
- [1] CHAPMAN H. D., 1961, Methods of Analysis for Soils, Plants and Waters.
- [2] FLAIG W, 1974, SWEDISH INT DEV AUTH, V27, P31
- [3] Gaur A. C., 1984, ORGANIC MANURES
- [4] Inoko A., 1984, Organic matter and rice., P137
- [5] Jackson M.L., 1967, SOIL CHEM ANAL, P326
- [6] Kawata S.-I., 1976, Proceedings of the Crop Science Society of Japan, V45, P99
- [7] KUMADA K, 1977, CHEM SOIL ORGANIC MA, P171
- [8] Larson W. E., 1984, Organic matter and rice., P363
- [9] LITTLE TM, 1977, AGR EXPT
- [10] Ponnamperuma F. N., 1972, Advances in Agronomy, V24, P29, DOI 10.1016/S0065-2113(08)60633-1