[ 发表于: Pollution ]
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结果 81-90 的 306
Biology of freshwater pollution
1981
Mason, C. F.
National Agricultural Library - United States of America
[Choice of fertilizer application methods [band placement] and fertilization time, and split fertilizer applications [effect on fertilizer utilization, nutrient losses, pollution]]
1981
Siman, G.
The Norwegian University Library of Life Sciences - Norway
[Soil phosphorus fractions and biologically available phosphorus in erosion material [soil runoff]]
1981
Persson, G.
The Norwegian University Library of Life Sciences - Norway
[Leaching of plant nutrients [nitrogen, phosphorus, potassium] from cultivated soil in Sweden [pollution, groundwater, surface water]]
1981
Gustafson, A. (Sveriges Lantbruksuniv., Uppsala (Sweden). Avd. foer Vattenvaard)
The Norwegian University Library of Life Sciences - Norway
Sludge treatment
1981
Eckenfelder, W. Wesley (William Wesley) | Santhanam, Chakra J.
National Agricultural Library - United States of America
Marine pollution | Meeresverschmutzung. English
1981
Gerlach, Sebastian A.
National Agricultural Library - United States of America
Water quality measurement
1981
Mark, Harry B. | Mattson, James S.
National Agricultural Library - United States of America
Short-term effects of oil pollution on species numbers and productivity of a simple terrestrial ecosystem [grassland]
1981
Kinako, P.D.S. (Port Harcourt Univ. (Nigeria). School of Biological Science)
European Union - Belgium
Irradiated digested sewage sludge: effects on plant-symbiont associations in the field [bean, onion]
1981
Spitko, R.A. (Massachusetts University, Amherst, 01003 (USA)) | Manning, W.J.
European Union - Belgium
