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| Blumenstein, Benjamin; Brock, Christopher; Dannehl, Theresa; Möller, Detlev. |
| Management measures to maintain or increase soil organic matter (SOM) are generally associated with additional costs and a decreasing profitability of crop rotations. However, certain SOM-enhancing strategies may have the potential to synergistically optimize also the economic output in the short or long term. We evaluated several crop rotations and green/straw manuring systems on diverging site properties in stockless farm systems for their effects on production economics. Benefits may especially derive from an increased spatio-temporal synchronization of crop nutrient demand and nutrient supply by turning green manures into mobile fertilizers, which can even result in short term economic benefits. However, as effects do not necessarily show instantly,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Soil biology. |
| Ano: 2017 |
URL: http://orgprints.org/31806/1/Humusersatzstrategien%20aus%20%C3%B6konomischer%20Perspektive1.pdf |
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| Dannehl, Theresa; Brock, Christopher; Leithold, Günter. |
| Stroh und Gründüngung stellen im Marktfruchtanbau die wesentlichen Substrate für die Versorgung der Böden mit organischer Substanz dar. Weitere organische Dünger sind zumeist nicht oder nur in geringem Umfang vorhanden. Diese Situation erfordert eine differenzierte Bewertung der Humusreproduktionsleistung von Stroh und Gründüngung. Im Rahmen des BÖLN-Projektes „Sicherung der Humusvorräte mit Grün- und Strohdüngung“ (2811NA061) wird u.a. geprüft, inwiefern die kombinierte Betrachtung der C- und N-Massenbilanzen eine anwendbare Option hierfür darstellt. Die Hypothese ist, dass sich das CN-Verhältnis im Substrat-Boden-Gemisch mittelfristig stets wieder einem standortspezifischen Wert annähert. Die Stabilisierung von Substrat-C im Boden wäre somit (u.a.) von... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Soil. |
| Ano: 2015 |
URL: http://orgprints.org/27223/1/27223_dannehl.pdf |
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| Brock, Christopher; Blumenstein, Benjamin; Dannehl, Theresa; Möller, Detlev. |
| An adequate supply of organic matter to arable soils is essential for the maintenance of soil productivity. Still, management implications can cause a trade-off with economics, as measures for soil organic matter management may not directly induce ecosystem services that increase the profitability of the system. This is especially true with regard to stockless organic farming systems, where well-proven measures, as the integration of fodder legumes in crop rotations, may not seem attractive with regard to the revenue. In this article we evaluate strategies for soil organic matter management in stockless organic farming systems based on scenarios for different soil-climate conditions in Germany to deal with this challenge. Several options to make use of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Soil. |
| Ano: 2017 |
URL: http://orgprints.org/31808/1/322-325%20Optionen%20zur%20Sicherung%20der%20Humusversorgung%20im%20viehlosen%20%C3%96kolandbau.pdf |
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| Brock, Christopher; Dannehl, Theresa; Blumenstein, Benjamin; Möller, Detlev. |
| Soil organic matter management is a challenge especially in stockless organic farming systems, as shares of fodder legumes in crop rotations are often small to provide more cash crop area, and farmyard manure as the most valuable source for organic matter supply to soils is not available. However, there are many different options for stockless farms to tackle this challenge. In this article we discuss strategies for organic matter supply to soils based on scenarios for different soil-climate regions in Germany. We conclude that the integration of fodder legumes into crop rotations is the most valuable option, as these crops do not only provide carbon but are able to replace mineralized soil organic matter nitrogen that has been exported with the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Soil. |
| Ano: 2017 |
URL: http://orgprints.org/31807/1/Humusersatzstrategien%20im%20viehlosen%20%C3%96kolandbau.pdf |
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