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Journal : Jurnal Lahan Suboptimal

Desain Petak Sawah Rawa Lebak Pematang untuk Pembudidayaan Padi-Ikan Dian Septi Hastuti; Edward Saleh; Hilda Agustina
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (740.145 KB) | DOI: 10.33230/JLSO.4.1.2015.149

Abstract

The research objective was to develop the design of paddy field plot in ridge lowland swamp for rice-fish cultivation. The method used in this study was descriptive in form of data collecting through direct field observation and from related institutions. The water balance and water pond dimension were mathematically calculated and the results would be compared to water balance from field observation. The observed parameters were effective rainfall, height of water table, crop water requirement, infiltration, percolation, evaporation, water pond dimension and paddy field plot size. The results showed that maximum storage volume of pond that was required to fulfill irrigation water requirement for rice plants as well as for fish cultivation was 44.2 m³/month. Dimension of designed pond had length of 18.48 m, width of 2.4 m and depth of 1 m.
Growth and yield of lettuce (Lactuca sativa L.) grown on different planting media volumes in a floating cultivation system Gustiar, Fitra; Septiani, Duwi; Agustina, Hilda; Adriansyah, Fikri; Ramadhani, Fitri
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 14 No. 1 (2025): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.14.1.2025.721

Abstract

Lettuce (Lactuca sativa L.) is one of the vegetables that is widely loved because of its taste and nutritional content. The increase in lettuce production can be increased by the use of swamp land with floating cultivation during the flood season. The size of the pots used in floating system cultivation will affect the growth and number of plants that will be produced. The study aimed to determine the optimal of planting media volume on the growth and yield of lettuce in floating cultivation system. The research used a randomized block design with 4 treatments of planting media volume, namely 1.9 L (P1), 2.7 L (P2), 3.6 L(P3), and 5 L (P4). Each treatment was repeated 4 times and each replication consisted of 5 plants. The results showed that at the beginning of the growth of the media volume of 2.7 L would be faster, but at the time of harvest almost all parameters showed that plants with a media volume of 5 L produced a larger plant weight than the plant unit. Although the use of smaller volumes of media results in a smaller plant weight, the raft is able to accommodate a larger number of pots. So that the use of a media volume of 1.9 L will be better used for floating lettuce production.