| 41 | |
| 42 | |
| Language: | English |
| 43 | Studies on response of blackgram vigna mungo L to phosphorus in different systems of cultivation |
| 44 | |
| Language: | English |
| 45 | |
| 46 | |
| Language: | English |
| 47 | availability of different forms of soil phosphorus for wheat and paddy |
| 48 | |
| Language: | English |
| 49 | |
| 50 | |
| Language: | English |
| 51 | Relation of nitrogen in the efficiency of fertilizer phosophorus |
| 52 | Studies on the states of phosphorus and its availability in acid soils of India |
| Language: | English |
| 53 | |
| 54 | |
| Language: | English |
| 55 | |
| 56 | |
| Language: | English |
| 57 | |
| 58 | |
| Language: | English |
| 59 | |
| 60 | |
| Language: | English |