细化搜索
结果 161-170 的 329
[Interactions between weather conditions and the occurrence of some damaging factors in newly established forest stands in areas of the Eastern Ore Mountains damaged by air pollution]
1990
Otto, L.F. (Technische Univ. Dresden, Tharandt (Germany). Sektion Forstwirtschaft)
[Melioration and fertilization as conditions of re-afforestation of areas of the Ore Mountains damaged by air pollution]
1990
Nebe, W. (Technische Univ. Dresden, Tharandt (Germany). Sektion Forstwirtschaft)
[Study on the root development of European larch (Larix decidua L.) in ENSO plant containers and on further plant development on planting sites]
1990
Roeder, T. (Technische Univ. Dresden, Tharandt (Germany). Sektion Forstwirtschaft) | Wagner, W. | Handriek, C. | Melzer, E.W.
[High moisture content of soils as important ecological factor on forest openings caused by air pollution effects]
1990
Herynek, J. (Vysoka Skola Zemedelska, Brno (CSFR). Lesnicka Fakulta)
Risk assessment for groundwater pollution control
1990
McTernan, William F. | Kaplan, Edward
Countermeasures to airborne hazardous chemicals.
1990
Holmes J.M. | Byers C.H.
Effects of fertilization with MgSO(4) and (NH(4))(2)SO(4) on soil solution chemistry, mycorrhiza and nutrient content of fine roots in a Norway spruce stand
1990
Haug, I. (Eberhard-Karl-University, Tuebingen (Germany, F.R.). Inst. of Biology I) | Feger, K.H.
Productivity, nutrient immobilization and soil chemical properties in an Eucalyptus globulus plantation under different irrigation and fertilization regimes
1990
Madeira, M. (Instituto Superior de Agronomia, Lisboa (Portugal)) | Pereira, J.S.
Effect of cement dust treatment on some phylloplane fungi of wheat
1990
Singh, A.K. (Banaras Hindu Univ., Varanasi (India). Dept. of Botany) | Rai, B.