A5069957780- Phosphorus and nutrient management
- Plant nutrient uptake and metabolism
- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Crop Yield and Soil Fertility
- Plant Micronutrient Interactions and Effects
- Composting and Vermicomposting Techniques
- Wastewater Treatment and Nitrogen Removal
- Heavy metals in environment
- Growth and nutrition in plants
- Nitrogen and Sulfur Effects on Brassica
- Agriculture, Plant Science, Crop Management
- Anaerobic Digestion and Biogas Production
- Phytase and its Applications
- Plant Physiology and Cultivation Studies
- Geochemistry and Elemental Analysis
- Agriculture, Soil, Plant Science
- Biochemical Analysis and Sensing Techniques
- Irrigation Practices and Water Management
- Postharvest Quality and Shelf Life Management
- Plant Stress Responses and Tolerance
- Heavy Metals in Plants
- Plant Growth Enhancement Techniques
- Ecology, Conservation, and Geographical Studies
- Engineering and Materials Science Studies
Technical University of Munich
2013-2024
Helmholtz Zentrum München
2022
Leibniz-Institute for Food Systems Biology at the Technical University of Munich
2017
Sugar and organic acid contents are major factors for tomato fruit flavour important breeding traits. Here we provide an improved protocol accurate quantification of the main sugars, glucose fructose, acids, citric malic acid, present in tomato. The extract is spiked with lactose tricarballylic as internal standards loaded onto a NH2 solid phase extraction (SPE) column. sugars appear flow-through subsequently analysed by HPLC using Nucleodur column refractive index detector. acids bind to...
Phosphorus (P), a plant macronutrient, must be adequately supplied for crop growth. In Germany, many soils are high in plant-available P; specifically arable farming, P fertilizer application has been reduced or even omitted the last decade. Therefore, it is important to understand how long these can support sustainable production, and what concentrations of soil required it. We analyzed 36-year long-term field experiment regarding effects different liming rates on growth with rotation sugar...
Hydroponic cultivation of vegetables avoids problems with soil-borne plant pathogens and may allow higher yield. In arid climates particularly on islands, high concentrations sodium chloride can be present in the groundwater. For instance, many sites Malta, groundwater contains more than 10 mM chloride. Here we investigated effects at levels typically found Malta yield, physiology fruit quality tomato, economically most important vegetable. We selected cherry tomatoes since their production...
Summary Phosphorus is one of the most important macronutrient for plants. In agriculture, amending fertilizer with phosphorus (P) common practice. However, natural sources are finite, making research more sustainable management practices necessary. We postulated that addition carbon (C) and nitrogen (N) would stimulate mobilization by bacteria because their desire to maintain a stable intracellular C:N:P stoichiometry. Therefore, we chose metagenomic approach investigate two agricultural...
Sulfur (S) fertilization has been long-known to influence the amounts of total free amino acids in plants. To determine impact S deficiency wheat on concentration of, particular, asparagine, spring cultivar 'Star' was grown a laboratory scale (5 L pot) at five different levels fertilization. After maturity, kernels were milled into white flours (1−5) and analyzed for their contents nitrogen as well glucose, fructose, maltose, sucrose. Extremely high concentrations asparagine (Asn; 3.9−5.7...
Phosphorus (P) fertilizer recommendations in most European countries are based on plant-available soil P contents and long-term field experiments. Site-specific conditions often neglected, resulting excessive applications. fertilization experiments including relevant site parameters were evaluated order to analyze the yield response. The database comprises about 2000 datasets from 30 Germany Austria. Statistical evaluations using a classification regression tree approach, multiple linear...
Crop production often leads to soil organic carbon (SOC) losses. However, under good management practice it is possible maintain and even re-accumulate SOC. We evaluated how different cropland techniques affected SOC stocks in the topsoil (0–30 cm depth) of 10 long-term experiments (LTE) Germany. found that were particularly enhanced by mineral fertilization amendments like straw incorporation a smaller degree irrigation, but only slightly choice preceding crops. In agreement with global...
Abstract Nitrification inhibitors (NIs), DCD (dicyandiamide), and DMPP (3,4‐dimethylpyrazole phosphate), in combination with urea (UR) ammonium sulfate nitrate (ASN) fertilizers were studied under contrasting soil textures (sand, loam, clay) from cultivated soils collected Brazil Germany. Soil samples incubated over 50 days the content of ( ), pH measured periodically. Applied NIs delayed nitrification process across all textures. Correlation analysis indicated that combining ASN resulted...
Abstract Biogas plants in Germany are producing an increasing amount of biogas residues to be recycled via agricultural crop production. To test whether the wide range various substrates used anaerobic digestion can affect chemical composition and nutrient availability, seven derived from different were investigated with respect their N supply ryegrass. Both short‐term long‐term availability studied a 309‐d pot experiment lasting for five successive growth cycles each starting fertilizer...
Abstract In view of restrictions in the application antibiotics animal production, Lanthanum (La) is intended to be introduced as a new growth promoter for pigs. Because most supplied La subsequently excreted, it will found organic fertilizers which are applied agricultural land. Thus, we examined effect lanthanum on and contents plants nutrient solution soils well its extractability from different soils. solutions with concentrations available up 20 μmol L –1 , shoot bush bean was markedly...
Glutamic and aspartic acid fulfil numerous functions in organisms. They are proteinogenic amino acids, they function as neurotransmitters, glutamic links the citrate cycle with metabolism. In addition, is a precursor for many bioactive molecules like γ-aminobutyric (GABA). tomatoes, accumulates ripening fruits. Here we present simple rapid method quantification of glutamate aspartate tomatoes. A cleared extract prepared 2-aminoadipic added internal standard. Subsequently, acids derivatised...
Corn (Zea mays L.) growth and development is often limited by the availability of phosphate. We thus hypothesized that phosphate fertilization may increase contents (poly)phenols, carotenoids, tocochromanols (vitamin E) in corn grains. plants cultivated on a soil fertilized with 44 kg phosphorus/ha were compared to grown low plant-available (1.6 mg CAL-P/100 g soil), each sown early (April) late (May) randomized field experiment. HPLC-DAD-(HR)-ESI-MSn revealed 19 soluble 10 insoluble...
Abstract Background The phosphorus (P) stocks of arable subsoils not only influence crop production but also fertilizer P sequestration. However, the extent this is largely unknown. This study aimed to (i) determine sequestration with soil depth, (ii) analyze speciation after long-term fertilization, and (iii) compare tests in predicting yields. We analyzed four trials Germany a depth 90 cm. Treatments received either mineral or organic P, combination both, for 16 113 years. determined...
Abstract As a consequence of the BSE crisis, alternatives for fertilizers derived from animal residues are being sought use in organic horticulture. Grain legumes (milled seeds pea, yellow lupine, and faba bean) industrially processed plant microbial (Maltaflor®‐spezial, Phytoperls®, Agrobiosol®, Rizi‐Korn) were investigated as to their suitability replacement fertilizer. With four soils, incubation studies conducted determine net N mineralization fertilizers, pot experiments used measure...
Abstract Many European cropped soils have high soil test P (STP) values in the top because of accumulation over many years fertilizer application. This should allow to save applications for some without STP decreasing a level that might negatively impact crop yield. However, way develops under omitted application is not well understood. We examined development timeframes between 7 and 46 on 96 unfertilized treatments (P0 treatments) 43 long‐term field experiments, using five different...