Effect of Change from the Conventional (Flooding) to Subsurface Irrigation System on Mature Pistachio Trees in Kerman
Effect of change from the conventional (flooding) to subsurface irrigation system was studied on mature pistachio trees (Cultivar Ohadi) in Kerman pistachio research station for four years. This experiment was carried out in a randomized complete block design including 7 treatments and 3 replication...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Isfahan University of Technology
2008-04-01
|
| Series: | Tulīd va Farāvarī-i Maḥṣūlāt-i Zirā̒ī va Bāghī |
| Subjects: | |
| Online Access: | http://jcpp.iut.ac.ir/article-1-819-en.html |
| _version_ | 1811314419559301120 |
|---|---|
| author | A. Mohammadi Mohammadabadi S.J. Hosseinifard N. Sedaghati |
| author_facet | A. Mohammadi Mohammadabadi S.J. Hosseinifard N. Sedaghati |
| author_sort | A. Mohammadi Mohammadabadi |
| collection | DOAJ |
| description | Effect of change from the conventional (flooding) to subsurface irrigation system was studied on mature pistachio trees (Cultivar Ohadi) in Kerman pistachio research station for four years. This experiment was carried out in a randomized complete block design including 7 treatments and 3 replications. The experiment also used two irrigation intervals (7;14 days) and three water rates according to pan coefficient (20%, 40%; 60% evaporation from surface of class A pan) for subsurface irrigation system with 6 treatments the conventional (flooding) irrigation system was tested as control. The pipes of subsurface irrigation system were installed at 90cm distance from trees trunk at each side of trees, and 50cm from soil surface. Mean of pressure and discharge in the pipes was 0.8 to 1 atmosphere and 5.4 Lh-1m-1, respectively. Different factors of quantity and quality pistachio yield, current vegetative growth, water use efficiency and soil electrical conductivity were measured. The results showed that change of conventional (flooding) to subsurface irrigation system is possible and the best treatment can have water rate of 7174 m3ha-1y-1 with 14 days irrigation interval. In comparison with other treatments, this treatment has better quantity and quality pistachio yield. Water use efficiency (WUE) of this treatment was 164g dry yield per cubic meter. Nevertheless, application of water rate of 4783 m3ha-1y-1 can result in the deficiency of irrigation water. At this water rate, WUE was 177g dry yield per cubic meter. However, it was found that the application of lower water rate (<4783 m3ha-1y-1) produced severe effects on the treated pistachio trees, e.g. decreasing the growth rate, yield and increasing the early splitting in pistachio fruits. Finally, it is concluded that 14-day interval irrigation is the preferred treatment for pistachio trees. Also, soil salinity showed considerable change in subsurface irrigation treatments after irrigation system was changed, especially in the first year. |
| first_indexed | 2024-04-13T11:11:14Z |
| format | Article |
| id | doaj.art-b428ac150a4144a9ba4df9e7fdf90069 |
| institution | Directory Open Access Journal |
| issn | 2251-8517 |
| language | fas |
| last_indexed | 2024-04-13T11:11:14Z |
| publishDate | 2008-04-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Tulīd va Farāvarī-i Maḥṣūlāt-i Zirā̒ī va Bāghī |
| spelling | doaj.art-b428ac150a4144a9ba4df9e7fdf900692022-12-22T02:49:06ZfasIsfahan University of TechnologyTulīd va Farāvarī-i Maḥṣūlāt-i Zirā̒ī va Bāghī2251-85172008-04-0112432945Effect of Change from the Conventional (Flooding) to Subsurface Irrigation System on Mature Pistachio Trees in KermanA. Mohammadi Mohammadabadi0S.J. Hosseinifard1N. Sedaghati2 Effect of change from the conventional (flooding) to subsurface irrigation system was studied on mature pistachio trees (Cultivar Ohadi) in Kerman pistachio research station for four years. This experiment was carried out in a randomized complete block design including 7 treatments and 3 replications. The experiment also used two irrigation intervals (7;14 days) and three water rates according to pan coefficient (20%, 40%; 60% evaporation from surface of class A pan) for subsurface irrigation system with 6 treatments the conventional (flooding) irrigation system was tested as control. The pipes of subsurface irrigation system were installed at 90cm distance from trees trunk at each side of trees, and 50cm from soil surface. Mean of pressure and discharge in the pipes was 0.8 to 1 atmosphere and 5.4 Lh-1m-1, respectively. Different factors of quantity and quality pistachio yield, current vegetative growth, water use efficiency and soil electrical conductivity were measured. The results showed that change of conventional (flooding) to subsurface irrigation system is possible and the best treatment can have water rate of 7174 m3ha-1y-1 with 14 days irrigation interval. In comparison with other treatments, this treatment has better quantity and quality pistachio yield. Water use efficiency (WUE) of this treatment was 164g dry yield per cubic meter. Nevertheless, application of water rate of 4783 m3ha-1y-1 can result in the deficiency of irrigation water. At this water rate, WUE was 177g dry yield per cubic meter. However, it was found that the application of lower water rate (<4783 m3ha-1y-1) produced severe effects on the treated pistachio trees, e.g. decreasing the growth rate, yield and increasing the early splitting in pistachio fruits. Finally, it is concluded that 14-day interval irrigation is the preferred treatment for pistachio trees. Also, soil salinity showed considerable change in subsurface irrigation treatments after irrigation system was changed, especially in the first year.http://jcpp.iut.ac.ir/article-1-819-en.htmlSubsurface irrigationPistachioChange irrigating SystemSalinityWater use efficiency |
| spellingShingle | A. Mohammadi Mohammadabadi S.J. Hosseinifard N. Sedaghati Effect of Change from the Conventional (Flooding) to Subsurface Irrigation System on Mature Pistachio Trees in Kerman Tulīd va Farāvarī-i Maḥṣūlāt-i Zirā̒ī va Bāghī Subsurface irrigation Pistachio Change irrigating System Salinity Water use efficiency |
| title | Effect of Change from the Conventional (Flooding) to Subsurface Irrigation System on Mature Pistachio Trees in Kerman |
| title_full | Effect of Change from the Conventional (Flooding) to Subsurface Irrigation System on Mature Pistachio Trees in Kerman |
| title_fullStr | Effect of Change from the Conventional (Flooding) to Subsurface Irrigation System on Mature Pistachio Trees in Kerman |
| title_full_unstemmed | Effect of Change from the Conventional (Flooding) to Subsurface Irrigation System on Mature Pistachio Trees in Kerman |
| title_short | Effect of Change from the Conventional (Flooding) to Subsurface Irrigation System on Mature Pistachio Trees in Kerman |
| title_sort | effect of change from the conventional flooding to subsurface irrigation system on mature pistachio trees in kerman |
| topic | Subsurface irrigation Pistachio Change irrigating System Salinity Water use efficiency |
| url | http://jcpp.iut.ac.ir/article-1-819-en.html |
| work_keys_str_mv | AT amohammadimohammadabadi effectofchangefromtheconventionalfloodingtosubsurfaceirrigationsystemonmaturepistachiotreesinkerman AT sjhosseinifard effectofchangefromtheconventionalfloodingtosubsurfaceirrigationsystemonmaturepistachiotreesinkerman AT nsedaghati effectofchangefromtheconventionalfloodingtosubsurfaceirrigationsystemonmaturepistachiotreesinkerman |