A5019893857- Plant Water Relations and Carbon Dynamics
- Rice Cultivation and Yield Improvement
- Crop Yield and Soil Fertility
- Plant nutrient uptake and metabolism
- Soil Carbon and Nitrogen Dynamics
- Ecology and Vegetation Dynamics Studies
- Photosynthetic Processes and Mechanisms
- Genetics and Plant Breeding
- Irrigation Practices and Water Management
- Genetic Mapping and Diversity in Plants and Animals
- Hydrology and Watershed Management Studies
- Remote Sensing in Agriculture
- Agricultural Systems and Practices
- Plant Micronutrient Interactions and Effects
- Soil erosion and sediment transport
- Soil and Water Nutrient Dynamics
- Bioenergy crop production and management
- Legume Nitrogen Fixing Symbiosis
- Soil and Unsaturated Flow
- Rangeland Management and Livestock Ecology
- Plant Stress Responses and Tolerance
- GABA and Rice Research
- Plant responses to water stress
- Agricultural Productivity and Crop Improvement
- Soil and Environmental Studies
Yara (Germany)
2016-2021
Kiel University
2005-2013
University of Hohenheim
2008-2013
Increasing grazing pressure and climate change affect nitrogen (N) dynamics of grassland ecosystems in the Eurasian steppe belt with unclear consequences for future delivery essential services such as forage production, C sequestration, diversity conservation. The identification key processes responsive to is crucial optimize management. In this comprehensive case study a Chinese typical steppe, we present an in‐depth analysis effects on N dynamics, including balance gains losses, cycling....
Abstract The worldwide increase of food demand and reduced sweet‐water availability in some important food‐producing regions raised interest more efficient water use, which has become one the central research topics agriculture. Improved irrigation management bare‐soil evaporation have highest priority to agronomic water‐use efficiency (WUE). Compared these technical (irrigation) basic (crop production) options, effects nutrient on WUE were less frequently considered. Twenty‐nine...
Abstract Sole ammonium supply provokes negative effects on dry‐mass formation, leaf growth, and water uptake of ammonium‐sensitive plants. To study the N form nutrient aquaporin expression, French bean plants were grown in a split‐root system. Five treatments compared: homogeneous nitrate (NN) (AA) supply; spatially separated (NA); half root system supplied with N‐free solution, other either (N0) or (A0). Ten days after onset treatments, dry mass (DM) water‐uptake rate (WUR) significantly...
Abstract To study the effects of local nitrogen supply on water and nutrient absorption, French bean ( Phaseolus vulgaris L.) plants were grown in a split root system. Five treatments supplied with different forms compared: homogeneous nitrate (NN) homogenous ammonium (AA) supply, spatially separated (NA), half system N‐free solution, other either (N0) or (A0). The results showed that 10 d after onset treatments, dry matter (DM) nitrate‐supplied vessels treated NA was more than two times...
Effects of salinity (60 mM NaCl) on 2 Turkish rice varieties (Kıral and Yavuz) were studied in comparison to international check (IR4630-22-2 tolerant IR31785-58-1-2-3-3 susceptible) hydroponic 1 outdoor soil-based pot experiments. Partitioning dry matter, leaf chlorophyll concentration, K^+ Na^+ uptake, proline accumulation the leaves investigated under both control salt stress conditions. Dry matter decreased with all varieties, decreases being more pronounced IR31785 Kıral. The results...
Nutrient management is central in water footprint analyses as it exerts strong control over crop yield and potentially contributes to pollution of freshwater, the so-called grey footprint. In frame accounting, two methods are suggested, constant leaching fraction approach (10% applied fertilizer N) N surplus approach. We compared both approaches expected that gives lower estimates (and fertilizer-induced freshwater pollution) when small higher high. application at which balance = 0 with...
Abstract Most studies indicating positive effects of nitrogen (N) supply on biomass water‐use efficiency (WUE) used two contrasting levels N and monitored some the relevant traits being associated with WUE. In order to investigate WUE over a wider range N‐supply levels, oriental tobacco was cultivated in pots under six (Exp. 1) four 2) until flowering stage. Water‐use efficiency, intrinsic (A/g), carbon isotope discrimination (CID), average daily canopy transpiration rate (E C ; from 12 7 d...
Abstract Facing a steadily increasing world energy demand, jatropha, among other crops, has been reported to potentially contribute biofuel production. A basic characterisation of plant responses abiotic environmental factors is important for assessing the model‐assisted potential this in view many agro‐ecological zones which jatropha presently cultivated. Two pot experiments and two field studies were used record gas exchange parameters response light, nitrogen supply, atmospheric vapour...
Climate variability is a characteristic feature of the tropics where summer monsoon starts from May/June and ends mostly in October, thus producing an unpredictably variable length December 9, 2011 growing season. This results serious challenges for mainly substituent small holder farmers arid to semi-arid zones tropics. A study was conducted determine attainable grain yield stability 10 well characterized extensively cultivated tropical sorghum accessions across 18 environments comprised 3...