| 1 | |
| Researcher: | Mohinder Singh |
| Guide: | Takkar, P N |
| University: | Punjab Agricultural University |
| Language: | English |
| 2 | Zinc quilibria and nutrition of rice as influenced by amelioration of sodic soils |
| Researcher: | Upkar Singh |
| Guide: | Takkar, P N |
| University: | Punjab Agricultural University |
| Language: | English |
| 3 | Adsorption, movement and forms of occurrence of boron in major soil groups of Assam |
| Researcher: | Borkakati, Kabindra |
| Guide: | Takkar, P N |
| University: | Punjab Agricultural University |
| Language: | English |