نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیار، گروه علوم و مهندسی آب، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند، ایران.
2 دانشجوی دکتری، گروه علوم و مهندسی آب، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند، ایران.
3 دانشیار، بخش تحقیقات خاک و آب، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خراسان جنوبی سازمان تحقیقات، آموزش و ترویج کشاورزی، بیرجند، ایران.
کلیدواژهها
عنوان مقاله English
نویسندگان English
Given the water crisis in arid and semi-arid regions, the development of greenhouse cultivation is proposed as a key solution to enhance productivity. The aim of this study was to evaluate the performance and physical and economic efficiency of water consumption in greenhouses of South Khorasan Province. For this purpose, research data were collected through questionnaires and field surveys from 203 active greenhouses in different counties of South Khorasan Province during the production period of 2024–2025. The results showed that cucumber, with a water use efficiency of 16.2 kg/m³ and a yield of 196 tons/ha, had the highest efficiency compared to tomato and pepper. Furthermore, greenhouses with an area of 1,000 to 3,000 m² had the highest efficiency, with a yield of 190 tons/ha and a water use efficiency of 30.9 kg/m³. The best planting date was from April to June, with a yield of 216 tons/ha and a water use efficiency of 35.4 kg/m³. A comparison between the greenhouse system and open-field cultivation showed a significant superiority of the greenhouse system; the water use efficiency in the greenhouse for cucumber was about 8 times that of open-field cultivation (2.8 kg/m³). The main identified challenges include energy instability and weaknesses in irrigation uniformity. This study emphasizes that precise input management and appropriate selection of production scale play a decisive role in the sustainability of greenhouses in the province.
کلیدواژهها English