Showing papers in "European Journal of Agronomy in 2002"

TL;DR: In this article, the knowledge on effects of climate change on agricultural productivity in Europe and the consequences for policy and research is reviewed, and a need to consider the multifunctional role of agriculture, and to strike a variable balance between economic, environmental and social functions in different European regions.

TL;DR: In this article, the integration of crop yield limiting factors into plant and canopy activities was made in order to highlight research objectives and new approaches, and a conceptual model was established based on the source-sink relationship, especially during the post-anthesis period.

TL;DR: The decrease in the oleic/linoleic acid ratio observed at early sowing and under irrigation, suggests a possible role of temperature on the activity of oleate desaturase in the developing seeds.

TL;DR: This article provided an introductory review focusing on simulating the impacts of elevated CO2 on crops and identified a set of recommendations aimed at improving our confidence in predictions of crop production under elevated CO 2 and climate change conditions.

TL;DR: It is argued that the combination of good software engineering with sound crop science can enhance the rate of advance in crop modelling.

TL;DR: Physiological dissection and modelling of traits provides an avenue by which crop modelling could contribute to enhancing integration of molecular genetic technologies in crop improvement.

TL;DR: In this paper, the authors present several strategies that can be used in using point-based crop growth models to assess spatial and temporal yield variability over different environmental conditions and to analyze economic return of prescriptions.

TL;DR: Results from a field trial in Southern Germany showed that new hybrids between M. sacchariflorus and M. sinensis should be developed that have many growth characteristics similar to M.×giganteus but with improved rhizome freeze tolerance in winter.

TL;DR: In this paper, the authors studied the effects of slurry distribution (incorporation, injection, surface-banding), soil type and soil tillage on the plant utilisation of labelled NH4-N from slurry, and compared to the utilization of 15 N-labelled mineral fertiliser.

TL;DR: In this paper, the discrepancy between estimation methods for water-retention parameters was so big that it is hard to make recommendations on which method to use for which soil, yet, an analysis with a set of field-measured data showed that the Saxton method performed best for LS, SL, L and SIL soils, with a RMSE.

TL;DR: In this paper, growth, N uptake and light interception were studied in processing tomato grown in the field in Central Italy (Tiber Valley, 43°N, elev. 165 m) at different levels of fertiliser-N in 1996-97-99.

TL;DR: In this article, the effects of antecedent leguminous and non-leguminous crop residues, each subjected to four different residue management practices (ploughed, rotary hoed, mulched and burned) on grain yield, nitrogen uptake by succeeding winter wheat crops, soil N mineralization and simple N balance have not been studied extensively.

TL;DR: In this article, the effects of temperature and water availability on the SDS-soluble and SDSinsoluble protein accumulation measured by size exclusion HPLC were investigated in mature wheat (Triticum aestivum L) grains.

TL;DR: Investigation of the effect of plant populations (PP) on the leaf area index (LAI), grain yield and cob characteristics of maize cultivars in Maribor, Slovenia concludes that the information on suitable PP for each maize cultivar is one of the key factors for planning maize production.

TL;DR: In this article, a simple but physiologically sound link was incorporated between dry matter and N translocation to the grain, and a modified grain protein routine was tested across field data sets from a wide range of growing conditions and showed an improved performance with a RMSD.

TL;DR: In this paper, the effects of elevated atmospheric carbon dioxide and/or tropospheric ozone concentrations on growth, yield and various aspects of potato tuber quality within the framework of the EC funded programme Changing Climate and Potential Impacts on Potato Yield and Quality (CHIP).

TL;DR: In this article, field experiments using the four most widely grown forage legumes, berseem ( Trifolium alexandrinum L.), crimson clover ( T. incarnatum L.), Persian clover, T. resupinatum L., and squarrosum clover were conducted in 1992 and 1993 at Foggia (Italy) to evaluate the osmotic adjustment capability and the relevant contribution of inorganic and organic solutes in response to water deficits.

TL;DR: In this paper, the effect of an additional 30 kg N ha −1 at booting on rice yield and grain quality was investigated with 30 farmers in the Senegal River valley during the 1997 wet season (WS) and 23 farmers during the 1998 dry season (DS).

TL;DR: The leaf water relations of vegetable amaranth were characterised by a high capacity of OA that may sustain turgor maintenance and hence dry matter production during drought stress, suggesting that changes in TW/DW might provide a simple screening method for OA in vegetableAmaranth.

TL;DR: In this paper, the Agricultural Production Systems Simulator (APSIM) was used to explore components of the water balance for a range of farming systems in the Murray-Darling Basin (MDB) of Australia.

TL;DR: In this paper, a multiplicative model based on the boundary line technique was used to estimate the relationship between stomatal conductance and the environmental variables, including ozone and carbon dioxide exposure and in the ambient air.

TL;DR: The balance between the opposing effects of deficit irrigation, which increased fruit numbers and decreased fruit size, and over-irrigation that strongly reduced fruit numbers, produced the optimum yield response.

TL;DR: In this paper, the potential impacts of ozone and CO2 on growth and yield of future European potato crops were considered, and a linear relationship between accumulated ozone exposure and marketable-size tubers was found.

TL;DR: In this paper, the authors studied the N release from ploughed 3-year-old grazed grasslands in the subsequent three seasons of forage crops on a sandy loam soil.

TL;DR: In the FACE (Free Air Carbon dioxide Enrichment) experiment, potato tubers were grown under ambient CO2 concentrations or with 550 and 680 μl l−1 CO2 alone or in combination with ambient or elevated ozone (O3) concentrations during two growing seasons, 1998 and 1999 as discussed by the authors.

TL;DR: In this article, a crop simulation model (apsim-nwheat) was used to evaluate the role of these traits in improving potential yield under a range of environmental conditions, and the analysis suggested that an increase in the potential yield from 9 to 22% can be expected from selection for the above physiological traits, but selection in the appropriate environment is important.

TL;DR: The study demonstrated a correlation between the model-defined pools and chemical plant fractions, but also that the pools in the model were larger than their measured counterparts.

TL;DR: In this article, two field experiments with sunflower (Helianthus annuus L.) were performed in the western part of the Pampas, Argentina, to assess nitrogen fertilization effects on seed yield, grain oil content, and plant lodging, and determine N requirement per unit of yield, crop recovery of fertilizer N, and whether these two parameters were affected by N and other nutrient additions.

TL;DR: In this article, the effect of different treatments (CO2 enrichment and O3 fumigation) on the chlorophyll content of fully expanded upper and lower canopy leaves was investigated collecting Minolta SPAD-502 meter readings.