Determination of crop coefficient for chufa crop (Cyperus esculentus L. var. sativus Boeck.) for sustainable irrigation scheduling
نویسندگان
چکیده
Chufa is a traditional crop in L'Horta de València (Spain), historical agricultural system that has been recognised the register of Globally Important Agricultural Heritage Systems, managed by Food and Agriculture Organization United Nations (FAO), one six protected Mediterranean metropolitan horticultural fields as per European Environment Agency. cultivated for its tubers. Our team carried out different studies to improve sustainability chufa crop, particularly efficiency irrigation water use; however, complete requirements remain unknown. Therefore, main aim this study was determine coefficient values along cycle using smart field weighing lysimeter three consecutive seasons requirements. The single are 0.32, 1.40, 0.80 initial stage, mid-season end late season respectively local conditions 1.24 0.73 mid- stages, standard conditions. FAO segmented second-order polynomial functions presented describe evolution throughout cycle, could be used scheduling may lead important savings. average seasonal net requirement approximately 640 mm, representing around 57% depth usually applied growers. savings achieved adjustment with requirements, coefficient, would improve, great extent, system, view scarcity resulting from climate change. This sustainable will ecosystem indices, which have altered application over-irrigation, area.
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ژورنال
عنوان ژورنال: Science of The Total Environment
سال: 2021
ISSN: ['0048-9697', '1879-1026']
DOI: https://doi.org/10.1016/j.scitotenv.2021.144975