Dechert, Georg

[["dc.bibliographiccitation.firstpage","197"],["dc.bibliographiccitation.issue","1-2"],["dc.bibliographiccitation.journal","Plant and Soil"],["dc.bibliographiccitation.lastpage","209"],["dc.bibliographiccitation.volume","265"],["dc.contributor.author","Dechert, Georg"],["dc.contributor.author","Veldkamp, Edzo"],["dc.contributor.author","Anas, Iswandi"],["dc.date.accessioned","2017-09-07T11:43:36Z"],["dc.date.available","2017-09-07T11:43:36Z"],["dc.date.issued","2005"],["dc.identifier.doi","10.1007/s11104-005-0885-8"],["dc.identifier.gro","3150188"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6925"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","0032-079X"],["dc.title","Is soil degradation unrelated to deforestation? Examining soil parameters of land use systems in upland Central Sulawesi, Indonesia"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","193"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Agricultural and Forest Entomology"],["dc.bibliographiccitation.lastpage","198"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Dechert, G."],["dc.contributor.author","Ulber, Bernd"],["dc.date.accessioned","2018-11-07T10:46:29Z"],["dc.date.available","2018-11-07T10:46:29Z"],["dc.date.issued","2004"],["dc.description.abstract","1 The rape stem weevil Ceutorhynchus napi Gyll. and the cabbage stem weevil Ceutorhynchus pallidactylus (Marsh.) share the same habitat and food resource within the stems of oilseed rape, Brassica napus L. var. oleifera. Interactions occurring between these two sympatric species on this host were studied under both field and laboratory conditions. 2 The oviposition preference of C. pallidactylus and the within-plant distribution of eggs and larvae were examined in field plots of oilseed rape. Female C. pallidactylus tended to lay their eggs in plants already infested by eggs and larvae of C. napi rather than in uninfested plants. The within-plant distribution of the egg batches of C. pallidactylus did not differ significantly between uninfested plants and those preinfested by C. napi. Ovipositing females of C. napi and C. pallidactylus generally showed a significant preference for plants with larger stem diameter. 3 Laboratory choice tests provided further evidence for the oviposition preference of C. pallidactylus. Females laid significantly more eggs in leaves of plants that had been previously infested by C. napi than in leaves of previously uninfested plants. 4 Larvae of C. pallidactylus showed a significant shift of their feeding niche towards the stem base when feeding in individual plants attacked by both species. This possibly indicates ressource partitioning between C. pallidactylus and C. napi. The within-plant distribution of C. napi larvae was not affected by the simultaneous attack of C. pallidactylus. 5 The size of the head capsule of full-grown larvae of C. napi and C. pallidactylus was not significantly correlated with the diameter of the stem of their host plant or with the number of conspecific larvae within individual plants."],["dc.identifier.doi","10.1111/j.1461-9555.2004.00220.x"],["dc.identifier.isi","000222936600003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/47755"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Blackwell Publ Ltd"],["dc.relation.issn","1461-9555"],["dc.title","Interactions between the stem-mining weevils Ceutorhynchus napi Gyll. and Ceutorhynchus pallidactylus (Marsh.) (Coleoptera : Curcullonidae) in oilseed rape"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","359"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Soil Science Society of America Journal"],["dc.bibliographiccitation.lastpage","366"],["dc.bibliographiccitation.volume","70"],["dc.contributor.author","Corre, Marife D."],["dc.contributor.author","Dechert, Georg"],["dc.contributor.author","Veldkamp, Edzo"],["dc.date.accessioned","2017-09-07T11:43:40Z"],["dc.date.available","2017-09-07T11:43:40Z"],["dc.date.issued","2006"],["dc.description.abstract","The lower montane forest zone of Indonesia is undergoing rapid conversion of indigenous forests to agriculture. In this tropical region, however, the effects of forest conversion on soil N processes have not been investigated. Corn (Zea mays L.) and cacao (Theobroma cacao L.)–coffee (Coffea canephora Pierre ex Froehner) agroforestry are the main land use types in cleared lower montane forests in Central Sulawesi, Indonesia. Our main objective was to compare the soil N dynamics under agroforest systems and corn cultivation with indigenous forest. We measured the gross rates of N transformation processes using 15N pool dilution. The agroforest systems and indigenous forests had higher gross N mineralization rates and faster turnover rates of NH4 + and microbial N pools than the long-term cultivated corn sites. Faster soil N turnover rates in agroforest systems suggest a more dynamic soil N cycling. Leguminous shade trees, which are important components of these agroforest systems, may have influenced the fast microbial N cycling through release of N-rich root exudates and plant residues. Our results show that compared with corn, agroforestry is a better option in terms of sustainability in the N-supplying capacity of the soil. In addition, we measured higher 15NH4 + recoveries than 15NO3 − recoveries after 15 min of 15N addition in all our sites. Our measured rates of gross nitrification were very low to negligible, due to rapid disappearance of added 15NO3 − Such fast reaction of NO3 − warrants further investigation, especially in tropical areas where 15N studies are very few."],["dc.identifier.doi","10.2136/sssaj2005.0061"],["dc.identifier.gro","3150191"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6928"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","1435-0661"],["dc.title","Soil Nitrogen Cycling following Montane Forest Conversion in Central Sulawesi, Indonesia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","201"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Nutrient Cycling in Agroecosystems"],["dc.bibliographiccitation.lastpage","212"],["dc.bibliographiccitation.volume","72"],["dc.contributor.author","Dechert, Georg"],["dc.contributor.author","Veldkamp, Edzo"],["dc.contributor.author","Brumme, Rainer"],["dc.date.accessioned","2017-09-07T11:54:55Z"],["dc.date.available","2017-09-07T11:54:55Z"],["dc.date.issued","2005"],["dc.identifier.doi","10.1007/s10705-005-1546-2"],["dc.identifier.gro","3150151"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6883"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","1385-1314"],["dc.title","Are Partial Nutrient Balances Suitable to Evaluate Nutrient Sustainability of Land use Systems? Results from a Case Study in Central Sulawesi, Indonesia"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]