A MODEL FOR WHEAT YIELD PREDICTION BASED ON REAL-TIME MONITORING OF ENVIRONMENTAL FACTORS

Poster (2010, July)

This paper presents the results of a one year preliminary study in which a real time monitoring system was used to feed the STICS soil crop model. As indicated by the statistical criteria (RMSE and model ... [more ▼]

This paper presents the results of a one year preliminary study in which a real time monitoring system was used to feed the STICS soil crop model. As indicated by the statistical criteria (RMSE and model efficiency), the optimization of some wheat crop parameters allows the model to predict the yields with good accuracy for different soil type and different nitrogen application rates. [less ▲]

La cohabitation entre les deux types d'agriculture doit prévaloir

Article for general public (2010)

Les flux de CO2 en grandes cultures

Conference (2010, February 24)

Les régulateurs de croissance

in Livre Blanc: Céréales - Gembloux (2010, February 24)

Implantation des cultures

in Livre Blanc: Céréales - Gembloux (2010, February 24)

Regroupement de traitements: il faut être conscient du risque

in Livre Blanc: Céréales - Gembloux (2010, February 24)

Les mélanges de produits phytosanitaires avec la solution azotée au 1er noeud - Les mélanges de fongicides ou d'herbicide avec le régulateur au 2ème noeud - Les mélanges fongicides et Allié à la dernière ... [more ▼]

Les mélanges de produits phytosanitaires avec la solution azotée au 1er noeud - Les mélanges de fongicides ou d'herbicide avec le régulateur au 2ème noeud - Les mélanges fongicides et Allié à la dernière feuille [less ▲]

Study of the performances of different nozzles types for spraying liquid fertilizer on wheat

in Huyghebaert, Bruno; Lorencowicz, Edmund; Uziak, Jacek (Eds.) Farm machinery and process management in sustainable agriculture (2009, November)

Variétés: froment d'hiver

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2009, September 10)

Froment 2009: de bons rendements mais une piètre qualité boulangère

in Livre Blanc: Céréales - Gembloux - Informations avant les semis (2009, September 10)

Interannual variability of CO2 fluxes and yield by a winter wheat crop (Triticum aestivum L.)

Poster (2009, April 20)

In this study, two winter wheat (Triticum aestivum L.) cropping seasons were compared at the Lonzée (Belgium) experimental site. The site, crop management, sowing and harvest dates were similar on the two ... [more ▼]

In this study, two winter wheat (Triticum aestivum L.) cropping seasons were compared at the Lonzée (Belgium) experimental site. The site, crop management, sowing and harvest dates were similar on the two years. The main difference between the seasons was due to to climate conditions. Continuous eddy-covariance fluxes, leaf scale photosynthesis measurements and crop development monitoring were performed during the whole vegetation periods. Globally, the two years were characterised by a higher than normal air temperature (9.9 °C and 11.9 °C respectively against 9.4 °C for standard) and lower than normal rainfalls (595.1 mm and 675.1 mm respectively against 772 mm for standard). In addition, the second season (2006-2007) was characterised by an exceptionally mild winter, dry and hot conditions in April and by humid and cloudy conditions during the last vegetation phases. These particular conditions induced earlier growth stages and the comparison of global fluxes gives contrasting results: gross primary productivity (GPP) was larger in 2007 but, on the contrary, net primary productivity (NPP) and crop productivity were lower on this year. The bad yields could be explained, on one hand by the drought in April 2007 that induced abnormally small flag leaves, on the other hand by cloudy and humid conditions from end May to harvest, that induced an assimilation reduction due to low radiation and favoured disease development. The simultaneous higher GPP and lower NPP and productivity in 2006-2007 raise the question of carbon allocation. It suggests that the excess carbon assimilated in 2006-2007 was not stored in grain or straw and thus that it would have been stored in the roots or in vegetation parts that decompose before the harvest. Further biomass measurements (and especially root biomass) are necessary to confirm this hypothesis. [less ▲]