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Selçuk Üniversitesi Fen Bilimleri Enstitüsü (2019)

EFFECT OF CHANGES IN CLIMATIC PARAMETERS ON PLANT WATER REQUIRMENTS

AMARKAI Peter Addo

Titre : EFFECT OF CHANGES IN CLIMATIC PARAMETERS ON PLANT WATER REQUIRMENTS

İKLİM PARAMETRELERİNDEKİ DEĞİŞİMİN BİTKİSU TÜKETİMİNE ETKİSİ

Auteur : AMARKAI Peter Addo

Université de soutenance : Selçuk Üniversitesi Fen Bilimleri Enstitüsü

Grade : MASTER OF SCIENCE IN AGRICULTURAL STRUCTURE AND IRRIGATION 2019

Résumé
This study was aimed to investigate the effects of changes in climate parameters on the crop water requirements in the Konya plain over a period of 10 years using data collected from four meteorological stations. The result showed a significant differences between the FAO Penman-Monteith method and each of the other methods. The water requirements of five different crops ; sugarbeet, maize (grain), sunflower, drybean and wheat which are commonly cultivated on the region were calculated. It was also observed that the ETc values calculated according to the Radiation equation was higher at most of the stations than ETc values calculated by the other methods. In Akşehir the ETc of dry bean obtained by using Radiation equation ranges from 501 mm to 679 mm, in Beyşehir it ranges from 544 mm to 727 mm, in Cihanbeyli 679 mm to 738 mm, and Ereğli ranges from 725 mm to 767 mm. The ASCE Penman-Monteith recorded the least ETc in all the meteorological station for the 10 year period. Plant water requirement calculated with the Blaney Criddle formula which depends largely on the minimum and maximum relative humidity has higher ETc values than ETc values calculated by the FAO 56 Penman-Monteith and Hargreaves - Samani in most of the locations. From the results, The radiation equations can be recommended for areas where meteorological data are not enough to calculate FAO Penman-Monteith which is considered as a standard approach of determining the water requirement of plants

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