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AGRIS - 国际农业科技情报系统

[ 发表于: Pollution ]
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出版日期
1991

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结果 181-190 的 229

Uptake and localization of nutritive and potentially toxic minerals in ectomycorrhizae of forest trees

1991

Kottke, I. (Tuebingen Univ. (Germany). Inst. fuer Botanik) | Oberwinkler, F.

aluminium toxicity aluminio toxicidad racine resistance to injurious factors fichten speicherung resistencia a agentes daninos 424.5 114.521.5 detoxifizierung ...
ZB MED Nutrition. Environment. Agriculture - Germany
Investigations on fine roots and mycorrhizae on the ARINUS-plots

1991

Haug, I. (Tuebingen Univ. (Germany). Spezielle Botanik) | Pritsch, K. | Oberwinkler, F.

fertilizer application fe racine magnesium zn composition chimique feinwurzeln fichten bade wurtemberg 181.34 aes 114.521.5 ...
ZB MED Nutrition. Environment. Agriculture - Germany
Soil ciliates as indicators of fundamental changes in forest ecosystems

1991

Lehle, E. (Ulm Univ. (Germany). Abt. Oekologie und Morphologie der Tiere) | Funke, W.

animales indicadores faune du sol pluie acide ecosystems ph fauna del suelo saeureeintrag boeden 182.8 143 mineralduenger 114.25 ...
ZB MED Nutrition. Environment. Agriculture - Germany
Tillage and cropping systems

1991

Harris, B. L. | Hons, F. M. | Toombs, M. M.

conservation tillage tillage agrochemicals runoff texas leaching soil cultivation and cropping systems ...
National Agricultural Library - United States of America
Reauthorization of the Federal Water Pollution Control Act

1991

pollution water united states law and legislation
National Agricultural Library - United States of America
Animal waste management

1991

Sweeten, John M. | Manning, Leah | Baird, Charles

runoff texas feedlots water pollution excreta dairy farming laws and regulations animal waste environmental aspects ...
National Agricultural Library - United States of America
Grazing management

1991

Welch, Tommy G.

grazing runoff animal nutrition texas management pastures forage plants plant production (range and pasture crops) environmental aspects range ecology ...
National Agricultural Library - United States of America
Reauthorization of the Federal Water Pollution Control Act

1991

pollution water united states law and legislation
National Agricultural Library - United States of America
Animal waste application

1991

Sweeten, John M.

wastewater texas soil fertility fertilizers excreta pollution animal waste manure handling and manures environmental aspects application rate land application ...
National Agricultural Library - United States of America
Pesticide management

1991

McWilliams, D. A.

pesticides pesticides agricultural pollution texas groundwater soil physical properties safety measures pesticides (general) groundwater contamination environmental aspects ...
National Agricultural Library - United States of America