| Title | Authors | Year |
|---|---|---|
| Forest decline, nutrient supply and diagnostic fertilisation in southwestern Germany and in southern California. |
Huettl, R.F… |
1990 |
| Wildlife toxicology |
Hoffman, D.… |
1990 |
| Cadmium uptake and toxicity to water hyacinth: effect of repeated exposures under controlled conditions |
Nir, R ;… |
1990 |
| Air pollution and agricultural aphid pests. I: Fumigation experiments with SO2 and NO2. |
Houlden, G… |
1990 |
| Decline of carpophores of mycorrhizal fungi instand, of Pinus sylvestris |
… |
1990 |
| Bryophytes and heavy metals: a literature review |
Tyler, G.… |
1990 |
| Forest soil chemical changes between 1949-50 and 1987 |
Billett, M.… |
1990 |
| Phytoavailability and toxicity of beryllium and vanadium |
Kaplan, D… |
1990 |
| The variation in the acidity of ground and surface waters in Northern Ireland |
Jordan, C… |
1990 |
| Calculated rates of soil acidification of intensively used grassland in the Netherlands. |
Oenema, O… |
1990 |