نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیارپژوهشی بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان فارس، سازمان تحقیقات، آموزش
2 بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس، سازمان تحقیقات، آموزش و ترویج کشاورزی، شیراز، ایران
3 موسسه تحقیقات فنی و مهندسی کشاورزی
4 استاد موسسه تحقیقات فنی و مهندسی کشاورزی، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Fars province is one of the prominent provinces in the country in the production of oranges and tangerines. Having sufficient information on the volume of irrigation water and water productivity in orange and tangerine orchards can lead to better management of water resources and increase water productivity. In this research, water productivity and irrigation water volume were measured in 60 orange and tangerine orchards in three regions of Fars province during the crop year 2019. Among the selected orchards, due to differences in irrigation management, the state of water resources and soil conditions, the volume of irrigation water varied from about 8800 to 24700 m3/ha/yr. The average total volume of irrigation water in orange and tangerine orchards was 15388 and 15093 m3/ha, respectively. The average volume of applied water, which is the sum of effective irrigation and rainfall, was 18289 and 17867 m3/ha, respectively. The average fruit yield for orange and tangerine orchards was estimated as 18.4 and 20.8 t/ha, respectively. The productivity of irrigation water in selected orchards was between 0.45 and 3.03 kg/m3 and on average for orange and tangerine it was 1.30 and 1.44 kg/m3 respectively. Comparing the volume of irrigation water with the gross water requirement showed that in the year of conducting the research, the volume of irrigation water was on average 4400 m3/ha or in other words 41% more than the required water. The average difference in the volume of irrigation water with the long-term gross water requirement was about 4000 m3/ha. Considering the area of orange and tangerine orchards in the three regions of Darab, Jahrom and Kazeroon, the amount of water saved will be 46, 8 and 14 Mm3/yr, respectively.
کلیدواژهها [English]