共 32 条
- [1] BARTHOLEMEW W. V., 1971, Nitrogen-15 in soil-plant studies. Vienna, Austria, IAEA., P1
- [5] CASIDA L. E., 1964, SOIL SCI, V98, P371, DOI 10.1097/00010694-196412000-00004
- [6] CHANDRA PURNA, 1964, WEED RES, V4, P54, DOI 10.1111/j.1365-3180.1964.tb00267.x
- [7] Day R.P., 1965, METHODS SOIL ANAL 1, P545, DOI DOI 10.2134/AGRONMONOGR9.1.C43
- [8] Doran J. W., 1987, American Journal of Alternative Agriculture, V2, P99, DOI 10.1017/S0889189300001739
- [9] DORAN JW, 1987, BIOL FERT SOILS, V5, P68, DOI 10.1007/BF00264349
- [10] Jenkinson D. S., 1981, SOIL BIOCH, V5, P415