共 50 条
- [3] PHOSPHORUS STATUS OF SOME ETHIOPIAN SOILS .3. EVALUATION OF SOIL TEST METHODS FOR AVAILABLE PHOSPHORUS [J]. TROPICAL AGRICULTURE, 1991, 68 (01): : 51 - 56
- [4] PHOSPHORUS FORMS IN SUBMONTANOUS SOILS OF UTTAR PRADESH AND THEIR RELATIONSHIP WITH AVAILABLE PHOSPHORUS [J]. INDIAN JOURNAL OF AGRICULTURAL SCIENCES, 1969, 39 (06): : 494 - &
- [8] ISOTOPICALLY EXCHANGEABLE PHOSPHORUS IN SOILS .3. THE FRACTIONATION OF SOIL PHOSPHORUS [J]. JOURNAL OF SOIL SCIENCE, 1958, 9 (01): : 120 - 129