Journal of Tropical Soils
Vol 26, No 3: September 2021

Drainmod Model Adaptation for Developing Recommendations Water Management in the Tertiary Block of Tidal Lowland Agriculture

Momon Sodik Imanudin (Department of Soil Science Faculty of Agriculture Sriwijaya University Indralaya Campus Jalan Palembang Prabumulih Km 32)
Bakri Bakri (Department of Soil Science Faculty of Agriculture Sriwijaya University Indralaya Campus Jalan Palembang Prabumulih Km 32)
Mustika Edi Armanto (Department of Soil Science Faculty of Agriculture Sriwijaya University Indralaya Campus Jalan Palembang Prabumulih Km 32)
Abdul Madjid Rohim (Department of Soil Science Faculty of Agriculture Sriwijaya University Indralaya Campus Jalan Palembang Prabumulih Km 32)



Article Info

Publish Date
02 Dec 2021

Abstract

The primary key to successful agricultural cultivation is maintaining the groundwater level to fulfill crop water requirements, particularly during the dry season. Field study was conducted in Tidal reclamation area of section 25 at Sugihan Kanan, Bandar Jaya Village, Air Sugihan, Ogan Komering Ilir District of South Sumatra.  The DRAINMOD computer model was used to simulate water levels in dry and wet climatic conditions. The principal measured parameters are soil hydraulic conductivity and drain spacing, as well as daily rainfall data. The simulation results showed that the research area belongs to the rainfed type, and the main objective of water management is to retain water and determine some efforts to increase the groundwater level through pump irrigation in the dry season. The application of pump irrigation was applied to the plant entering the generative phase. The pump irrigation was provided to distribute water into the quarter and worm (micro) channels. The effect of this application caused the groundwater level to approach about 30 cm below the soil surface, while groundwater level in areas without pump irrigation facility was in the range of 50-60 cm. Besides efforts to increase the water table, liming is still required in order to increase production. Lime application of 1 Mg ha-1 had a significant effect on increasing production. Corn production with this treatment could produce 5 Mg ha-1, while non-treated land areas only produce 2-3 Mg ha-1.

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Journal Info

Abbrev

tropicalsoil

Publisher

Subject

Agriculture, Biological Sciences & Forestry Environmental Science

Description

Journal of Tropical Soils (JTS) publishes all aspects in the original research of soil science (soil physic and soil conservation, soil mineralogy, soil chemistry and soil fertility, soil biology and soil biochemical, soil genesis and classification, land survey and land evaluation, land development ...