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| Registros recuperados: 12 | |
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| Schmidt, Harald; Bruns, Christian; Wilbois, Klaus-Peter. |
| Auf 32 Ökobetrieben in Deutschland wurden von 2009 bis 2012 insgesamt 128 Felder untersucht. Ziel war es wesentliche Faktoren für den Boden-Eindringwiderstand zu identifizieren und die Beziehung zwischen Eindringwiderstands-Parametern und dem Ertrag von Wintergetreide zu prüfen. Auf ca. einem Viertel der untersuchten Felder wurden häufig stark verdichtete Bodenschichten gefunden. Korrelationsanalysen ergaben als wesentliche Faktoren eines großen Eindringwiderstands im Untergrund einen hohen Sandanteil, Flachgründigkeit von Böden, warme Temperaturen, niedrige Kleegras- und Winterfruchtanteile sowie hohe Anteile an Kartoffeln in der Fruchtfolge, große Pflugtiefen und hohe Schleppergewichte. Partielle Korrelationsanalysen ergaben negative Beziehungen zwischen... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Crop husbandry Soil. |
| Ano: 2015 |
URL: http://orgprints.org/27146/1/27146_schmidt.pdf |
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| Apostolov, Stoylko; Kirov, P.; Tihov, N.. |
| Резултат - В началото растенията при директната сеитба имаха по-добро развитие. Но посева бе неизравнен (някои от растенията бяха във фаза 2-4 лист, други преминавали 8-ми лист). Мулчът задържа изпарението на влага. - При контролното поле в повърхностния почвен слой нямаше налична влага. Растенията са с леко завехнали и завити листа. Броят и растежът на растения е равномерен(фаза 3-4 лист). - Получените добиви (в свежа маса) са доста под очакваните. Добивът в контролното поле е по-висок: - контролно поле - 14,450 кг(от 0,6 ха), среден добив 24 083 кг/ха - тестово поле - 15,200 кг(от 0,7 ха), среден добив 21 714 кг/ха Практически препоръки - след прибиране на реколтата от предшественика(зърнени култури или рапица), през август направете обработка... |
| Tipo: Practice tool |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Soil tillage. |
| Ano: 2018 |
URL: http://orgprints.org/33047/1/PA_023_BIOSELENA_green_manure_direct_sowing_final.pdf |
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| Birkhofer, K.; Fließbach, A.; Wise, D.H.; Scheu, S.. |
| 1 Agricultural intensification not only alters the structure of arthropod communities, but also may affect biotic interactions by altering the availability of basal resources. We analyzed variations in stable isotope ratios (15N/14N and 13C/12C) of fertilizers, plants, prey and generalist predators in organic and conventional farming systems in a long-term agricultural experiment [DOK trial (bioDynamic, bioOrganic, Konventionell)]. Two basal resources with pronounced differences in carbon isotope signatures, wheat litter (C3 plant) and maize litter (C4 plant), were used to uncover differences in food web properties between the two farming systems (conventional versus organic). 2 Predators incorporated significantly higher proportions of carbon from wheat... |
| Tipo: Journal paper |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Biodiversity and ecosystem services. |
| Ano: 2011 |
URL: http://orgprints.org/21781/1/birkhofer-etal-2011-AgrForestEntomol-Vol13-p197-204_abstract.pdf |
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| Hüppi, Roman; Neftel, Albrecht; Lehmann, Moritz F.; Krauss, Maike; Six, Johan; Leifeld, Jens. |
| Biochar, a carbon-rich, porous pyrolysis product of organic residues, is evaluated as an option to tackle major problems of the global food system. Applied to soil, biochar can sequester carbon and have beneficial effects on nitrogen (N) cycling, thereby enhancing crop yields and reducing nitrous oxide (N2O) emissions. There is little understanding of the underlying mechanisms, but many experiments indicated increased yields and manifold changes in N transformation, suggesting an increase in N use efficiency. Biochar's effects can be positive in extensively managed tropical agriculture, however less is known about its use in temperate soils with intensive fertilisation. We tested the effect of slow pyrolysis wood chip biochar on N use efficiency, crop... |
| Tipo: Journal paper |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Air and water emissions. |
| Ano: 2016 |
URL: http://orgprints.org/34685/1/hueppi_etal-2016_EnvironResLett-Vol11-p084013.pdf |
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| Das hier beschriebene Projekt ist Teil eines Verbundvorhabens, das folgende Teilprojekte umfasst: FKZ 08OE004, FKZ 08OE005, FKZ 08OE006, FKZ 08OE008, FKZ 08OE009. Alle in Organic Eprints archivierten Projektbeschreibungen und Veröffentlichungen zu diesem Verbundvorhaben finden Sie unter folgendem Link: http://orgprints.org/cgi/saved_search?savedsearchid=1239. Der Einsatz von organischen Düngemitteln als externe Nährstoffquelle in vieharm bzw. viehlos wirtschaftenden Betrieben des ökologischen Landbaus bietet neben einer Zufuhr von Makro- und Mikronährstoffen langfristig wirkende positive Effekte auf den Humusvorrat im Boden und den Umsatz organischer Bodensubstanz. Vor dem Hintergrund einer Verbesserung von Ertragssicherheit und Pflanzengesundheit beim... |
| Tipo: Project description |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover Soil tillage Air and water emissions Post harvest management and techniques. |
| Ano: 2023 |
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| Lehner, D.; Thalenhorst, H.; Kariger, R.. |
| The influence of biochar with an amount of 0 to 20 t/ha on growth, yield and ingredients on soybeans of different variants was compared. Differences between the variants until blooming could be found. Plants from the HTC variant have shown significantly longer stems than others. These differences diminished until the harvest. Due to extrem low precipitation values in spring and early summer, no rhizobia could be developed and nitrogen fixation for the soybean was impossible. The plants could only use nitrogen from the soil. As a result, plots prepared with mineral fertilizer have shown the significantly longest plants, highest mass of dry matter and highest yields. Further, HTC variants have shown the lowest values in oil- and sugar contents. The highest... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds. |
| Ano: 2017 |
URL: http://orgprints.org/31589/1/Einfluss%20von%20HTC-Biokohle%20als%20Bodenverbesserer%20auf%20den.pdf |
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| Hirte, J.; Leifeld, J.; Oberholzer, H.-R.; Mayer, J.. |
| Below ground carbon (BGC) inputs by agricultural plants into the soil are an important variable in soil carbon (C) modelling. The sources for BGC inputs are dead root biomass and C release by living roots (C rhizodeposition). Since management effects on BGC inputs are not profoundly understood, we address the following research questions in this research project: (i) What are the proportions of root biomass and C rhizodeposition of the total BGC input in the topsoil and subsoil under maize cultivation at different sites? (ii) Does long-term fertilization practice affect total root biomass, root distribution, shoot/root ratios, and C rhizodeposition of maize? Results obtained from field experiments in 2013 on two Swiss long-term experimental sites (“DOK”... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds. |
| Ano: 2015 |
URL: http://orgprints.org/27237/1/27237_hirte.pdf |
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| Mayer, Jochen; Hirte, Juliane; Oberson, Astrid; Lüscher, Andreas; Frossard, Emmanuel; Mäder, Paul; Hammelehle, Andreas. |
| We investigated nitrogen and carbon below ground inputs of soybean, clover-grass and maize and management effects of biological and conventional systems in the DOK long term experiment. We found for soybean increasing below ground C and N inputs with decreasing fertilization intensity whereas those effects were small for clover-grass. Below ground nitrogen inputs of red clover could be estimated by above ground N multiplied with a factor of 0.5. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Nutrient turnover. |
| Ano: 2015 |
URL: http://orgprints.org/27229/1/27229_mayer.pdf |
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| Grüter, Roman; Costerousse, Benjamin; Mayer, Jochen; Mäder, Paul; Thonar, Cécile; Frossard, Emmanuel; Schulin, Rainer; Tandy, Susan. |
| Wheat is a staple food crop and a major source of both the essential micronutrient zinc (Zn) and the toxic heavy metal cadmium (Cd) for humans. Since Zn and Cd are chemically similar, increasing Zn concentrations in wheat grains (biofortification), while preventing Cd accumulation, is an agronomic challenge. We used two Swiss agricultural long-term field trials, the “Dynamic-Organic-Conventional System Comparison Trial” (DOK) and the “Zurich Organic Fertilization Experiment” (ZOFE), to investigate the impact of long-term organic, mineral and combined fertilizer inputs on total and phytoavailable concentrations of soil Zn and Cd and their accumulation in winter wheat (Triticum aestivum L.). “Diffusive gradients in thin films” (DGT) and... |
| Tipo: Journal paper |
Palavras-chave: Soil quality Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2019 |
URL: http://orgprints.org/36388/1/grueter-etal-2019-SciTotalEnv-Vol669-p608-620.pdf |
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| Registros recuperados: 12 | |
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