Titlebook: Stoffumsatz im wurzelnahen Raum; 9. Borkheider Semina Wolfgang Merbach (1. Vorsitzender der Deutschen Ge Textbook 1999 Springer Fachmedien

Enzyme

滔滔不絕地講

Wurzelerneuerung bei Wintergerste und ihre Bedeutung für die P-Versorgungasurement using auger sampling methods gives information only about the net size of a root system. In case of winter barley root, gross growth between 1 April and 18 June was more than twice the net size of the root system and even greater at P shortage. New roots can exploit undepleted soil and the

大火

Agronomische Ma?nahmen zur Reduzierung der Cadmiumaufnahme bei Salat (, L.)jective of our investigations was to obtain information if agronomical treatments result in an increase or decrease of Cd soil availability or plant Cd uptake. It is necessary to investigate soil Cd availability and Cd uptake by plants separately. Using different levels of NPK fertilizer it was foun

四指套

dearth

Beziehungen zwischen ,H-Wert, Sulfat- und Nitratkonzentrationen und der Arylsulfatase-Aktivit?t in d, respectively, on the activity of arylsulfatase-activity was investigated..Following results were obtained: The activity of arylsulfatase is influenced by the .H of the rhizosphere. While the arylsulfatase-activity is not influenced by the concentration of NO. and SO., respectively, it decreased wi

Pastry

FLASK

Abgabe von 15N an den Boden durch intakter Weizenpflanzen in der gesamten Vegetationsperiodeing conditions. The influence of vanadate was also studied. Since methods used until now for such studies have their shortcomings we developed therefore a new technique: Spring wheat seedlings were at first labelled in a .N nutrient solution and then transplanted into soil pots...N labelled compound

肌肉

Die r?umliche Verteilung der Abgabe von Wurzelabscheidungen von Raps- und Maispflanzen exudation of carboxylic acids from the upper to the bottom segments. In comparison, maize roots show a decrease of sugar exudation from the upper to the bottom parts. At the same time, the release of carboxylic acids increased clearly. The root exudates are concentrated to the root tips in rape pla

thrombus

Wurzelabscheidungen in B?den und deren Auswirkung auf die Phosphatmobilisierung and to elucidate the phosphate-dissolving effect of these substances under sterile and unsterile conditions. For this purpose, the behaviour of water soluble citric acid, malic acid, glutaric acid and D-glucose was analysed in small blocks (10 × 20 × 20 mm). Under sterile conditions, the substances

miracle