| 1 | Behaviour of potassium in soils and its availability to plants |
| 2 | |
| Language: | English |
| 3 | |
| 4 | Uptake of potassium by plants in relation to root-soil behaviour |
| Language: | English |
| 5 | Phosphate equilibria and its availability in salt affected soils |
| 6 | |
| Language: | English |