El-Nino Effect on Water Management Objective in Tidal Lowland Reclamation Areas (Adaptation Model for Corn)

Imanudin, Momon Sodik and Budianta, Dedik and Bakri, Bakri El-Nino Effect on Water Management Objective in Tidal Lowland Reclamation Areas (Adaptation Model for Corn). internasional2nd World Proceedin Irrigation Forum 6-8 November Chiang Mai-Thailand ISBN 978-81-89610-22-7. ISSN 978-81-89610-22-7

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    Abstract

    Phenomenon of climate change occurs almost every year and the real impact was felt in 2015 where South Sumatra suffered prolong drought due to the effects of El Nino. This condition made the majority of agricultural land was affected by drought and even fire. The study objective was to assess the effect of El Nino on the water management operating system as an effort to provide water for crops requirement. Crop adaptation model was implemented by using corn as a second crop and it was expected to maximize land use under dry condition and to protect land from fire hazards. The results showed that the network operation was the drainage system (opened gate) which implemented from June to August and water retention system (closed gate) was done from September to October. The water level has decreased from July to October. The peak water level was dropped to a depth of -190 cm below soil surface at the beginning of October. Water retention eeffort done by the farmers was too late because it should be done during less rainfall period in July. Water table depth was more than 190 cm so that corn experienced a water deficit and its production level was decreased to 6-6.5 tons/ha compared to its typical production level of 8 to 8.5 tons/ha. This means that the impact of the El - Nino events have lowered corn production by 25 %. This condition is still good by considering the fact that land can still be used and protected from fire hazards. Therefore, intensification of agriculture in wetlands had proved to be capable to prevent fire hazards.

    Item Type: Article
    Uncontrolled Keywords: tidal lowland, DRAINMOD, Elnino
    Subjects: S Agriculture > S Agriculture (General)
    Divisions: Faculty of Agriculture
    Depositing User: Dr Momon Sodik Imanudin
    Date Deposited: 15 Dec 2016 11:41
    Last Modified: 15 Dec 2016 11:41
    URI: http://eprints.unsri.ac.id/id/eprint/6899

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