| Title | Authors | Year |
|---|---|---|
| Nitrate in soil water |
Westling, O… |
1991 |
| Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system. |
Mansfield,… |
1991 |
| Changes in species composition of semi-natural vegetation associated with the increase in atmospheric inputs of nitrogen |
Pitcairn, C… |
1991 |
| Environmental Health Criteria 125 Platinum |
WHO, |
1991 |
| Influence of HN3 and (HN4)2 SO4 on heathland vegetation |
Van der… |
1991 |
| Air pollution and agriculture |
Ashmore, M.… |
1991 |
| Nitrogen Uptake and Allocation by Calluna-Vulgaris (L) Hull and Deschampsia-Flexuosa (L) Trin Exposed to 15NH3 |
Dueck, T.A… |
1991 |
| Effects of ionising radiation on aquatic organisms |
National… |
1991 |
| Forestry and soil protection in the UK |
Moffatt, A.… |
1991 |
| The yield of winter cereals exposed to sulphur dioxide under field conditions. |
McLeod, A.R… |
1991 |