Abstract
<p> </p><ul><li>Agriculture productivity of tidal lowland reclamation areas in South Sumatra is still low. It leads to the increasing of agricultural land conversion into plantation areas. Controlling the water table is the main factor in the tidal lowlands; this research aimed to develop micro drainage system in tertiary block for controlling water table under wet condition. Watermelon was used as a crop indicator and planted in mid- March 2015. The location of the research was in a tidal lowland agriculture with land typology B, where the tide can only be as irrigation during the rainy season. The method of this research was surveying and monitoring. Groundwater observation, measurement value hydraulic conductivity and land drainage applications were included in the field activities. The design of land drainage used an<strong> </strong>intensive shallow drainage concept; the effect of the depth of the water table to water status was evaluated by the UPFLOW model. A micro drainage on tertiary block was used by 8 m drain spacing, with channel depth of 20 cm. The results showed that the tertiary gate operation was maximum drainage option. The water table depth was 25 cm in soil depth.The watermelon crops grew well and production reached 20 t ha-1</li></ul><pre>. </pre><p> </p>
Highlights
Increaseing food production becomes essential to meet the population growth
Rice production in Indonesia has so far been supplied by swampland areas, including outside of Java island like Sumatera island (Shultz, 2016)
The agricultural development in tidal lowland reclamation areas should take into account the physical and environmental conditions, so the value of the investment is proportional to the Correspondence Author: Momon Sodik Imanudin
Summary
Increaseing food production becomes essential to meet the population growth. Rice production in Indonesia has so far been supplied by swampland areas, including outside of Java island like Sumatera island (Shultz, 2016). A problem occurs when there is a decrease in soil quality and more over there are many lands change their function to plantation (Aswandi et al, 2017). Such land conversion caused negative impacts to the soil, like decreasing biophysical soil conditions for paddy production and damaging infrastructure network of water system. Only 45 % of the tidal lowland in Telang II Banyuasin (South Sumatera) is cultivated to food crops (Imanudin et al, 2010). The agricultural development in tidal lowland reclamation areas should take into account the physical and environmental conditions, so the value of the investment is proportional to the Correspondence Author: Momon Sodik Imanudin.
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