Fungal loop transfer of nitrogen depends on biocrust constituents and nitrogen form

Growth and nitrogen content of sunflower as affected by the rate and form of nitrogen

Influence of nitrogen fertilization and defoliation frequency on nitrogen constituents and feeding value of annual ryegrass.

Two experiments were conducted to determine the seasonal effects of N fertilizer (NF) and defoliation interval (DI) on specific N fractions within annual ryegrass (AR) and overall usage of AR N by growing lambs. In Exp. 1, NF (0, 112, 224, and 336 kg of N/ha) and DI of 2, 4, or 6 wk were factorially applied to AR plots. Both decreasing DI and increasing NF increased N levels in AR in a manner t...

Competition for nitrogen between Fagus sylvatica and Acer pseudoplatanus seedlings depends on soil nitrogen availability

Competition for nitrogen (N), particularly in resource-limited habitats, might be avoided by different N acquisition strategies of plants. In our study, we investigated whether slow-growing European beech and fast-growing sycamore maple seedlings avoid competition for growth-limiting N by different N uptake patterns and the potential alteration by soil N availability in a microcosm experiment. ...

Levental Nitrogen Constituents in Brain Regions

3 Monnier, M. and Hatt, A. M.: Intraventricular infusions in acute and chronic rabbits. Application of the stereotaxic method of Monnier and Gangloff. Pflügers Arch. ges. Physiol. 317: 268-277 (1970). 4 Monnier, M. and Hatt, A. M. : New evidence of humoral transmission of sleep. Experientia 27: 722 (1971). 5 Monnier, M. and Hatt, A. M.: Humoral transmission of sleep. V. New evidence from produc...

Effect of rhizobium and nitrogen on soybean