| 1 | Amperometric titrations with K-Ditho-trihydroxymethyl amino-methane and phosphorus pentasulfide |
| 2 | Availability of different forms of soil phosphorus for wheat and paddy |
| Language: | English |
| 3 | |
| 4 | |
| Language: | English |
| 5 | |
| 6 | |
| Language: | English |
| 7 | |
| 8 | availability of different forms of soil phosphorus for wheat and paddy |
| Language: | English |
| 9 |