Determining the Possibility of Use of the DSSAT Model to Estimate Maize Yield and Water Consumption under Different Irrigation Levels
Bildiriler > Özet Bildiri · 2023
Yazarlar: Şener ÖZÇELİK, Sinan ARAS, Şuayip YÜZBAŞI, Bayram Akyol, Gülay PAMUK MENGÜ, Erhan AKKUZU, Perihan TARI AKAP
15th International Congress on Agricultural Mechanization and Energy in Agriculture – AnkAgEng’2023, Türkiye, Antalya, Uluslararası, Sözlü Sunum, Özet Bildiri, 2023-2023, ss 63-63
Özet
<p>The Mediterranean climate zone is at serious risk in terms of agricultural production due to the detrimental</p><p>effects of climate change. It is required to set up new production strategies against the difficulties in supplying</p><p>irrigation water faced in our region for recent years. In this context, plant growth models stand out as an</p><p>important tool. The maize production having a large area in Aegean Region shrinks because of an increase in</p><p>temperature and drought in recent years. In this context, with this study, it is aimed to predict the effects of</p><p>different irrigation levels on evapotranspiration (ET), leaf area index (LAI), biomass and grain yield of maize to</p><p>maximize maize yield capacity and water use efficiency under drought stress in Menemen condition. In this</p><p>study, 5 different deficit water treatments that are 4 different percentages (%120, %90, %60, %30) of weekly</p><p>evaporation amount taken from Class A pan and rainfed are considered. In accordance with the simulation</p><p>outcomes through DSSAT model, RMSE values are found 0.97 t/ha, 2.55 t/ha, 0.49 and 40 mm respectively</p><p>for yield, biomass, LAI and ET. Difference between values measured and predicted by model is found higher</p><p>in upper water deficit treatments while it is found lower or equal in absence or lower water deficit treatment</p><p>conditions. In conclusion, the risk condition can be mapped in agricultural areas for maize production by</p><p>applying DSSAT model within different drought stress levels. Additionally, the strategies for increased water</p><p>use efficiency can be developed at the level of big production areas in catchment and plain in compliance with</p><p>deficit water resources.</p>