共 50 条
- [1] FORMS OF PHOSPHORUS IN SOME RAJASTHAN SOILS [J]. INDIAN JOURNAL OF AGRICULTURAL SCIENCES, 1972, 42 (06): : 471 - +
- [8] FERTILIZER PHOSPHORUS AND POTASSIUM EQUIVALENTS OF SOME GREEN MANURES FOR POTATO IN ALLUVIAL SOILS OF PUNJAB [J]. TROPICAL AGRICULTURE, 1990, 67 (01): : 74 - 76
- [9] AMOUNT AND FORMS OF PHOSPHORUS OF SOME SOILS OF AMAZON REGION OF MARANHAO, BRAZIL [J]. TURRIALBA, 1970, 20 (03): : 372 - +
- [10] FORMS OF PHOSPHORUS IN SOILS OF KARNATAKA [J]. INDIAN JOURNAL OF AGRICULTURAL SCIENCES, 1988, 58 (10): : 760 - 765