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| Jarosch, A.-M.; Neumann, E.; Oltmanns, M.; Raupp, J.. |
| We investigated wheat yield and arbuscular mycorrhiza (AM) fungal root colonization and spore formation in response to long-term mineral or organic soil fertilization. Plots were either fertilized with high or low amounts of mineral fertilizer or cattle manure since 27 years. At low fertilization levels there was no difference in yield between minerally and organically fertilized plants. High levels of mineral fertilizer application reduced wheat yields. Probable reasons can be that either the high nitrogen availability was less effectively used for grain development of minerally fertilized plants, or the mineral fertilization rendered the plants more sensitive towards drought stress. The extent of AM fungal root colonization appeared to depend on the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Soil biology Composting and manuring. |
| Ano: 2008 |
URL: http://orgprints.org/16096/1/ciec08_am.pdf |
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| Raupp, J.; Jarosch, A.-M.; Oltmanns, M.. |
| Die Wirkung pflanzlicher organischer Dünger (meist Leguminosenschrot) wurde bislang vorwiegend im Jahr der Anwendung, aber nicht als Langzeiteffekt auf Erträge und Bodenentwicklung untersucht. Ein direkter Vergleich mit Stallmist unter Feldbedingungen findet in der Regel nicht statt. Deshalb haben wir in einem Langzeitversuch (seit 1996) Stallmistdüngung, organische Dünger pflanzlicher Herkunft (meist Ackerbohnenschrot) und Mineraldüngung miteinander verglichen. In allen drei Schnitten brachte die Nachwirkung der pflanzlichen Dünger niedrigere Frisch- und Trockenmasse-Erträge als die N-gleichen Stallmistvarianten. Der Ertrag nach Mineraldüngung lag zwischen den beiden anderen Düngerarten, kam aber der Mistvariante meist näher als der Ackerbohnenvariante.... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Soil biology Composting and manuring. |
| Ano: 2008 |
URL: http://orgprints.org/16100/1/pflb08raupp.pdf |
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| Raupp, J.; Oltmanns, M.; Jarosch, A.-M.; Neumann, E.. |
| We investigated wheat yield and arbuscular mycorrhiza (AM) fungal root colonization and spore formation in response to fertilization, either with high or low amounts of mineral fertilizer or cattle manure since 27 years. At low rates there was no difference in yield between minerally and organically fertilized plants. High rates of mineral fertilizers reduced yields. Reasons can be that either the high nitrogen availability was less effectively used for grain development of minerally fertilized plants, or the mineral fertilization rendered the plants more sensitive towards drought stress. The extent of AM fungal root colonization appeared to depend on the plant P nutritional status rather than the type of fertilizer applied. The lower fertilization... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2009 |
URL: http://orgprints.org/14400/1/Raupp_14400.pdf |
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| Ludwig, B.; Raupp, J.; Heitkamp, F.. |
| Type and rate of fertilizer influence the level of organic carbon and total nitrogen in the soil markedly, but the effect on different pools is open to question. Soil samples were taken from a sandy Cambisol at Darmstadt, Germany, after 27 years of different fertilization treatments. The six treatments were: straw incorporation plus application of mineral fertilizer (MSI) and application of farmyard manure (FYM) each at high (140 – 150 kg N ha-1 year-1), medium (100 kg N ha-1 year-1) and low (50 – 60 kg N ha-1 year-1) rates. After 266 days of incubation (10°C, 50% water-filled pore space) mineralization of C (1130 – 1820 kg ha-1) and N (90 – 125 kg ha-1) depended on the rate and not on the type of fertilizer. Very labile and labile pools were... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil. |
| Ano: 2009 |
URL: http://orgprints.org/14438/1/Ludwig_14438.pdf |
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| Raupp, J.; Oltmanns, M.. |
| Since 1980 a field trial is carried out on a sandy soil under dry-warm climate conditions (590 mm annual precipitation, 9.5°C annual mean air temperature) comparing farmyard manure with and without biodynamic preparations and mineral fertilizer, each treatment at three application rates between 60 and 140 kg total nitrogen per hectare. The amount of water available in June was a relevant yield determining factor (p<0.05) only for minerally fertilized wheat. During 13 years the manure fertilized wheat yielded between 30 and 50 dt ha-1, irrespective to water availability. Manure fertilization gave lower maximum yields but higher minimum yields showing a better yield stability. With manure fertilization the wheat plants realized a better harvest index of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Soil biology Composting and manuring. |
| Ano: 2008 |
URL: http://orgprints.org/16099/1/ciec08_sw.pdf |
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| Raupp, J.; Dobiaschowski, L.; Oltmanns, M.. |
| Mit dem niedrigem Düngungsniveau erzielte Mineraldüngung einen höheren Ertrag als Stallmist, bei hoher Aufwandmenge jedoch waren die Mistvarianten überlegen (bis zu 28 dt ha-1). In unserem Versuch standen 50 Pflanzen pro m-2, ohne sicheren Einfluss der Düngung. Das Tausendkorngewicht und der Fettgehalt der Körner blieben ebenfalls ohne signifikanten Düngungseffekt. Der Rohproteingehalt der Körner war mit mineralischer Düngung immer höher als mit organischer und stieg bei jeder Düngungsart von der mittleren zur hohen Aufwandmenge signifikant an. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring. |
| Ano: 2009 |
URL: http://orgprints.org/16101/1/pflb09amaranth.pdf |
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