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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 171-180 的 229

Animal waste management

1991

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

water pollution animal manures water quality feedlots pollution dairy farming environmental aspects laws and regulations animal waste ...
National Agricultural Library - United States of America
Pesticide management

1991

McWilliams, D. A.

pesticides water pollution groundwater pollution pesticides agricultural pollution environmental aspects groundwater contamination safety measures pesticides (general) ...
National Agricultural Library - United States of America
Harvest-aid chemicals

1991

Supak, James Raymond | Price, Jack | Rieff, Susan Karol

water pollution gossypium defoliants harvesting pollution soil physical properties spraying and dusting in agriculture plant production (field crops) soil chemistry and physics ...
National Agricultural Library - United States of America
Tillage and cropping systems

1991

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

water pollution conservation tillage leaching crop residues pollution texas soil cultivation and cropping systems ...
National Agricultural Library - United States of America
Animal waste application

1991

Sweeten, John M.

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

1991

Welch, Tommy G.

grazing pastures animal nutrition water pollution water quality range management environmental aspects forage plants plant production (range and pasture crops) 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
The importance of soil structure for the K-nutrition of Norway spruce stands

1991

Hildebrand, E.E. (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg (Germany))

rhizosphere nutrition des plantes waldboden mineral deficiencies soil chemicophysical properties rizosfera 114.14 114.25 nachlieferung bade wurtemberg/ sol acide homogenisierte proben austauschbares kalium ...
ZB MED Nutrition. Environment. Agriculture - Germany
Genetic structures of forest trees with different levels of damage on permanent observation plots on forest decline in Baden-Wuerttemberg

1991

Konnert, M. (Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Stuttgart (Germany). Abt. Botanik und Standortskunde)

genetic variation isoenzyme enfermedades de las plantas isoenzimas genotypes varianzanalyse resistencia a agentes daninos faktorenanalyse standortsbedingungen 165.3 (430.1-43.5) weisstannen ...
ZB MED Nutrition. Environment. Agriculture - Germany
[Diurnal changes in photosynthetic activity of Norway spruce needles: Gas exchange, energy metabolism, and regulation of carbohydrate metabolism]

1991

Einig, W. (Tuebingen Univ. (Germany). Physiologische Oekologie der Pflanzen) | Weidmann, P. | Hampp, R. | Hagg, C. | Rinderle, U. | Lichtenthaler, H.K.

energy metabolism kohlenhydratstoffwechsel metabolisme metabolismo edad carbohidratos 161.34 fichten 161.2 181.2/.3 6-bisphosphat tagesgaenge vergleich ...
ZB MED Nutrition. Environment. Agriculture - Germany