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| Registros recuperados: 11 | |
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| David, Christophe; Jeuffroy, Marie-Hélène. |
| Advances in scientific understanding of the plant and soil behaviour in a cultivated field led to the design of numerous soil-crop models simulating crop growth. The frequent low predictive quality of these models is linked to uncertainties in inputs, parameters and equations. The AZODYN crop model predicting wheat grain yield and grain protein content was previously developed to support decision for N management of conventional and organic wheat crops. This paper outlines a sequential approach to improve the predictions of the AZODYN model by testing various formalisms. This study is based on the comparison of 38 versions of the model assessed in multi-environment trials carried out under conventional or low-input conditions. This paper describes and... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover. |
| Ano: 2009 |
URL: http://orgprints.org/19494/1/David_et_Jeuffroy%2C_2009.pdf |
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| Davari, Mohammadreza; Sharma, Shri Niwas; Mirzakhani, Mohammad. |
| Organic farming often has to deal with a scarcity of readily available nutrients, and this is in contrast to chemical farming which relies on soluble fertilisers. The present study was conducted to ascertain the effect of different combinations of organic manures, rice residues and biofertilisers in organic farming of wheat. The field experiments were carried out on the research farm of Indian Agricultural Research Institute (IARI), New Delhi in 2006-07 and 2007-08. Treatments consisted of a control (no fertiliser) and six fertiliser treatments, namely, farmyard manure (FYM), vermicompost (VC), FYM + rice residue (RR), VC + RR, FYM + RR + biofertilisers (B), and VC + RR + B. FYM and VC were applied on nitrogen basis (60 kg ha-1), whereas RR was applied at... |
| Tipo: Journal paper |
Palavras-chave: Production systems Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover. |
| Ano: 2012 |
URL: http://orgprints.org/21901/7/21901.pdf |
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| Grüter, Roman; Costerousse, Benjamin; Bertoni, Angelina; Mayer, Jochen; Thonar, Cécile; Frossard, Emmanuel; Schulin, Rainer; Tandy, Susan. |
| Zinc (Zn) deficiency in human populations depending on cereals as a main source of Zn is a global malnutrition problem. In this field study, we investigated the potential of green manure application to increase soil Zn availability and wheat grain Zn concentrations (biofortification) on a Luvisol with different long-term fertilizer management. We also studied cadmium (Cd), as wheat is a major contributor of this undesired non-essential element to human diets. Clover (Trifolium alexandrinum L.), mustard (Sinapis alba L.) or no green manure was grown on field plots which had been managed with farmyard manure or mineral fertilizers for 65 years in Switzerland. After green manure incorporation into the soil, spring wheat (Triticum aestivum L.) was grown on all... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover. |
| Ano: 2017 |
URL: http://orgprints.org/32663/1/greuter-etal-2017-SciTotalEnv-vol599-600-p1330-1343.pdf |
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| Benke, A.; Rieps, A.; Zikeli, Sabine; Möller, Kurt. |
| The aim of our research was to compare the N fertilizer value of different clover-grass (CG) based fertilizers. A pot trial was set up with 8 treatments with Lolium perenne: fresh CG, ensiled CG, compost from CG, solid manure and liquid manure from dairy cows fed with CG, biogas digestate, an unfertilized and a mineral fertilizer control. Our hypothesis was that compared to composting, and to other treatments (e.g. silage) biogas digestates allow for a more efficient N fertilization due to a lower C/N ratio and a higher share of NH4 +. Dry matter yield, C/N ratio, N concentration, N release and Nitrogen use efficiency (NUE) were examined. The results show the highest overall NUE, N release and yield in the treatment with biogas digestate and the lowest... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover. |
| Ano: 2017 |
URL: http://orgprints.org/31878/1/Stickstoffd%C3%BCngewirkung%20und%20Stickstofftransfereffizienz%20von.pdf |
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| Leithold, Günter; Becker, Konstantin; Riffel, Alexandra; Schulz, Franz; Schmid-Eisert, Andreas; Brock, Christopher. |
| Nicht selten mangelt es in vielen Ökobetrieben an einer ausreichenden Versorgung der Ackerkulturen mit Stickstoff. Die Lage erscheint umso schwieriger, je stärker die Betriebe spezialisiert sind, also nicht dem klassischen Leitbild eines ökologischen Gemischtbetriebes mit Rinderhaltung entsprechen. Vorgestellt und diskutiert werden jüngste Forschungsergebnisse zu den Möglichkeiten einer verbesserten Stickstoffbereitstellung, insbesondere über einen erfolgreichen Anbau von Futterleguminosen. Es wird begründet, warum Klee, Luzerne oder Leguminosen-Gras-Gemenge nach wie vor in jede Ökofruchtfolge gehören. Zudem wird bewiesen, dass eine Schwefeldüngung auf Schwefelmangelstandorten zur Verdopplung der Luftstickstoffbindung der Futterleguminosen beitragen kann.... |
| Tipo: Book |
Palavras-chave: "Organics" in general Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover. |
| Ano: 2015 |
URL: http://orgprints.org/29525/1/N%2BS%20im%20OL_Summary.pdf |
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| Pommeresche, Reidun; Hansen, Sissel. |
| La asociación simbiótica entre bacterias y leguminosas es crucial para el aporte de nitrógeno (N) por fijación biológica, tanto al suelo como a las plantas, en los sistemas de cultivo ecológicos. El trébol plurianual pueden llegar a aportar a los sistemas de cultivo más de 200 kg de N por ha/año a partir del segundo año posterior a la siembra. Este documento técnico tiene como objetivo invitar a los agricultores a observar detenidamente las raíces de las leguminosas y a familiarizarse con el proceso de fijación de nitrógeno y su relevancia en la agricultura orgánica. En estas hojas se proporciona información relevante sobre la fijación del nitrógeno bio‐lógico y se describe un método encillo para examinar los nódulos de las raíces fijadoras de nitrógeno.... |
| Tipo: Report |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover. |
| Ano: 2017 |
URL: http://orgprints.org/32468/1/pommeresche-hansen-2017-root-nodules-spanish.pdf |
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| Scheifele, Michael; Hobi, Andrea; Buegger, Franz; Gattinger, Andreas; Schulin, Rainer; Boller, Thomas; Mäder, Paul. |
| The aim of this study was to identify effects of carbonized organic material (‘‘biochar’’) on soybean growth, root nodulation and biological nitrogen fixation, and to elucidate possible underlyingmechanisms.Soybean (Glycine max L.) was grown in four arable soils amended with carbonized organic material produced from wood or maize as feedstocks, by pyrolysis (‘‘pyrochar’’) or hydrothermal carbonization (‘‘hydrochar’’). Nodulation by Bradyrhizobium, biological nitrogen fixation (BNF) assessed by15N techniques, plant growth, nutrient uptake and changes in chemical soil propertiesafter soil amendment were determined. Data were analyzed by means of a three way ANOVA onthe factors soil, carbonization technique and feedstock. It turned out that soybean root... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Nutrient turnover. |
| Ano: 2017 |
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| Registros recuperados: 11 | |
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