این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Agricultural Science and Technology، جلد ۲۲، شماره ۴، صفحات ۱۱۳۷-۱۱۵۰
عنوان فارسی تراکم طولی ریشه درختان انجیر دیم تحت تأثیر زمان، مقدار و محل آبیاری تکمیلی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Root Length Density of Rainfed Fig Trees under Different Times, Amounts, and Positions of Supplemental Irrigation
چکیده انگلیسی مقاله The changes in Root Length Density (RLD) of rainfed fig trees due to supplemental irrigation were studied during two growing seasons in Estahban, southern Iran, with objective of finding out the optimum position, time, and amount of supplemental irrigation. Irrigation position treatments were: (1) In a micro-catchment close to tree trunks; (2) Inside the tree canopies (1-1.1 m from tree trunks); and (3) Outside the tree canopies (2.1-2.2 m from tree trunks). Irrigation time treatments included: (a) In early spring and (b) In mid-summer; and the treatments of irrigation amount were: (i) No supplemental irrigation (control), (ii) 1,000, and (iii) 2,000 L per tree. Results showed that the highest RLD in different irrigation amounts occurred at 15-45 cm depth during late winter and late spring. However, during summers, the high RLD occurred 15 cm lower at 30-60 cm depth. Irrigation water treatments of 1,000 and 2,000 L per tree increased RLD values by 11.3 and 19.3%, respectively, in late spring and 10.5% and 14.7%, respectively, in late summer, compared with the rainfed treatment. Whereas this increase generally occurred in the wetted area; supplemental irrigation out of tree canopy could develop the root horizontal extension to a greater distance. Lower temporal variation in RLD profile was obtained for depths deeper than 75 cm, which was in agreement with soil water content variations. Supplemental irrigation applied out of tree canopy with 2,000 L per tree (200 m3 ha-1) during early spring is recommended to improve root development of fig trees in drought prone rainfed areas.
کلیدواژه‌های انگلیسی مقاله Drought,Ficus carica L,Scheduling supplemental irrigation,Soil water content
نویسندگان مقاله M. Abdolahipour |
Water Engineering Department, School of Agriculture, Shiraz University, Shiraz, Islamic Republic of Iran.

A. A. Kamgar-Haghighi |
Water Engineering Department, School of Agriculture, Shiraz University, Shiraz, Islamic Republic of Iran.

A. R. Sepaskhah |
Water Engineering Department, School of Agriculture, Shiraz University, Shiraz, Islamic Republic of Iran.

S. Zand-Parsa |
Water Engineering Department, School of Agriculture, Shiraz University, Shiraz, Islamic Republic of Iran.

T. Honar |
Water Engineering Department, School of Agriculture, Shiraz University, Shiraz, Islamic Republic of Iran.

نشانی اینترنتی https://jast.modares.ac.ir/article_16471_13048fce5bf73235da630b4418d75314.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات