Utilization of nitrogen in legume-based mobile green manures stored as compost or silage

The utilization of nitrogen (N) in green manure leys can be improved by harvesting, storage and spreading of the plant material as manure in other crops. By green manure storage as silage, storage losses of N are lower than by composting. Also, a relatively high fertilizer value of silage N is achievable depending on the C/N ratio of the material. Nitrogen availability in green manure leys is higher after storage as silage compared to composting. Use of mobile green manures is mainly relevant in arable cropping systems without livestock where utilization of the roughage for animal feed or biogas production is impossible, as costs for ley/roughage harvest and transport can be relatively high. Our study showed that surface application of green manure silage to growing crops can damage plants and is therefore not recommended, whereas incorporation of silage before sowing has significant positive effects on crop yields

The recurrence time of Dansgaard-Oeschger events and limits on the possible periodic component

By comparing the high-resolution isotopic records from the GRIP and NGRIP icecores, we approximately separate the climate signal from local noise to obtain an objective criterion for defining Dansgaard-Oeschger events. Our analysis identifies several additional short lasting events, increasing the total number of DO events to 27 in the period 12-90 kyr BP. The quasi-regular occurrence of the DO events could indicate a stochastic or coherent resonance mechanism governing their origin. From the distribution of waiting times we obtain a statistical upper bound on the strength of a possible periodic forcing. This finding indicates that the climate shifts are purely noise driven with no underlying periodicity.Comment: 9 figure

Determiner Phrase or Genitive Phrase? An examination of possessive structures in Danish and English

This paper seeks to analyze the possessive construction in English and Danish through the lens of two competing analytical frameworks. First, the two frameworks – the Genitive Phrase model and the Determiner Phrase model - are presented and strengths and weaknesses are accounted for. Then, the frameworks are applied to standard possessive constructions from Danish and English. Finally, a unique construction from a dialect of Danish is introduced and tested against the two models. This paper finds that the Determiner Phrase model has a more complete explanation for the different examples.This paper seeks to analyze the possessive construction in English and Danish through the lens of two competing analytical frameworks. First, the two frameworks – the Genitive Phrase model and the Determiner Phrase model - are presented and strengths and weaknesses are accounted for. Then, the frameworks are applied to standard possessive constructions from Danish and English. Finally, a unique construction from a dialect of Danish is introduced and tested against the two models. This paper finds that the Determiner Phrase model has a more complete explanation for the different examples