Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea region

In response to the Sustainable Development Goals (SDGs) adopted by United Nations, combining using straw mulching, the proper crop planting date, and regulated deficit irrigation (RDI) is fundamental to adapt to climate change and to promote sustainable agriculture in the dry Mediterranean region. T...

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Main Author: I. Mubarak
Format: Article
Language:English
Published: Firenze University Press 2020-04-01
Series:Advances in Horticultural Science
Subjects:
Online Access:https://oaj.fupress.net/index.php/ahs/article/view/8401
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author I. Mubarak
author_facet I. Mubarak
author_sort I. Mubarak
collection DOAJ
description In response to the Sustainable Development Goals (SDGs) adopted by United Nations, combining using straw mulching, the proper crop planting date, and regulated deficit irrigation (RDI) is fundamental to adapt to climate change and to promote sustainable agriculture in the dry Mediterranean region. Two-year pot experiment under field conditions (2017 and 2018) was conducted in Damascus Countryside, Syria (altitude 600 m), to evaluate the onion crop response to early planting, irrigation level, and straw mulching. Treatments composed of three different planting dates with 28-day intervals (two early dates in February and March, and the traditional date in April), three irrigation levels (100, 80, and 60% of crop evapotranspiration, ETc), and two types of soil cover (with and without wheat straw mulch), with three replicates. Findings revealed that the seasonal ETc decreased from about 900 mm under current practice (planting in April without mulch) to only about 550 mm under both straw mulch and earliness in planting. Large bulb yield increases (more than double) were also obtained. Moreover, early planting using straw mulching significantly enhanced the onion crop response to RDI, even at 60% of ETc. Combining early planting in February, straw mulching, and full irrigation represents the best agricultural management.
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spelling doaj.art-d718c9f370404abd8b3849bb47ceac9a2022-12-21T22:00:22ZengFirenze University PressAdvances in Horticultural Science0394-61691592-15732020-04-0134110.13128/ahsc-8401Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea regionI. Mubarak0Department of Agriculture, Atomic-Energy Commission of Syria, PO Box 6091, DamascusIn response to the Sustainable Development Goals (SDGs) adopted by United Nations, combining using straw mulching, the proper crop planting date, and regulated deficit irrigation (RDI) is fundamental to adapt to climate change and to promote sustainable agriculture in the dry Mediterranean region. Two-year pot experiment under field conditions (2017 and 2018) was conducted in Damascus Countryside, Syria (altitude 600 m), to evaluate the onion crop response to early planting, irrigation level, and straw mulching. Treatments composed of three different planting dates with 28-day intervals (two early dates in February and March, and the traditional date in April), three irrigation levels (100, 80, and 60% of crop evapotranspiration, ETc), and two types of soil cover (with and without wheat straw mulch), with three replicates. Findings revealed that the seasonal ETc decreased from about 900 mm under current practice (planting in April without mulch) to only about 550 mm under both straw mulch and earliness in planting. Large bulb yield increases (more than double) were also obtained. Moreover, early planting using straw mulching significantly enhanced the onion crop response to RDI, even at 60% of ETc. Combining early planting in February, straw mulching, and full irrigation represents the best agricultural management.https://oaj.fupress.net/index.php/ahs/article/view/8401Allium cepa L.irrigation water use efficiencyonion bulb yield
spellingShingle I. Mubarak
Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea region
Advances in Horticultural Science
Allium cepa L.
irrigation water use efficiency
onion bulb yield
title Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea region
title_full Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea region
title_fullStr Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea region
title_full_unstemmed Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea region
title_short Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea region
title_sort improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry mediterranea region
topic Allium cepa L.
irrigation water use efficiency
onion bulb yield
url https://oaj.fupress.net/index.php/ahs/article/view/8401
work_keys_str_mv AT imubarak improvingwaterproductivityandyieldofonioncropbycombiningearlyplantingandstrawmulchunderdifferentirrigationlevelsindrymediterranearegion