Water and Land Productivity of Lettuce (Lactuca sativa) at Floating Pot on Wetland

Lily Endah Diansari

Abstract


The objective of this study was to determine the values of water productivity and land productivity at the floating pot on wetland and to find out whether the floating pots were optimal or not for agriculture in wetlands. The planting media used were mineral soil, and peat soil consisting of 0%, 30%, 50%, 70% and 100% each of which had hydraulic conductivity values respectively except the 100% was 36.07 cm/hour, 38.33 cm/hour, 51.23 cm/hour and 69.60 cm/hour. The water delivery used was legacy cloth which had hydraulic conductivity value was 158.4 cm/hour. The floating pots were applied to the experiment tank in the greenhouse. The decrease in water level in the experimental pool was total evapotranspiration for all plants in five types of planting media. Water level reduction during the 41-days planting period was 40.56 mm with a total water volume was 0.081 m3. The productivity values of land and water in the 0%, 30%, 50%, 70% and 100% peat planting media, respectively were 1.29, 1.25, 1.06, 0.8 dan 0 kg/m2 dan 1.63, 1.63, 1.38, 1.04 dan 0 kg/m3.The objective of this study was to determine the values of water productivity and land productivity at the floating pot on wetland and to find out whether the floating pots were optimal or not for agriculture in wetlands. The planting media used were mineral soil, and peat soil consisting of 0%, 30%, 50%, 70% and 100% each of which had hydraulic conductivity values respectively except the 100% was 36.07 cm/hour, 38.33 cm/hour, 51.23 cm/hour and 69.60 cm/hour. The water delivery used was legacy cloth which had hydraulic conductivity value was 158.4 cm/hour. The floating pots were applied to the experiment tank in the greenhouse. The decrease in water level in the experimental pool was total evapotranspiration for all plants in five types of planting media. Water level reduction during the 41-days planting period was 40.56 mm with a total water volume was 0.081 m3. The productivity values of land and water in the 0%, 30%, 50%, 70% and 100% peat planting media, respectively were 1.29, 1.25, 1.06, 0.8 dan 0 kg/m2 dan 1.63, 1.63, 1.38, 1.04 dan 0 kg/m3.

Keywords


floating pot, water productivity, land productivity, sub-surface irrigation

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References


R.G. Allen, L.S. Pereira, D. Raes, M. Smith. Crop Evapotranspiration - Guidelines for Computing Crop Water Requirements. Rome (IT): Food and Agriculture Organization of the United Nations (FAO). 1998.

B. Bakri, M.S. Imanudin and S.M. Bernas. “Water Retention Option of Drainage System for Dry Season Corn Cultivation at Tidal Lowland Area.” Agrivita, vol 37, issue 3, pp 237, 2015.

S.M. Bernas, A. Pohan, S.N.A. Fitri and E. “Kurniawan.. Model Pertanian Terapung dari Bambu untuk Budidaya Kangkung Darat (Ipomoea reptans Poir.) di Lahan Rawa.” Jurnal Lahan Suboptimal, vol 1, pp 178-185, 2012.

S. Contreras, A.B. Mark and T. David. “Restricted Water Availability During Lettuce Seed Production Decreases Seed Yield per Plant but Increases Seed Size and Water Productivity.” Hort Science, vol 43, issue 3, pp 837-844, 2008.

Hermantoro and Pusposutarjo. “Pemodelan Pertumbuhan dan Pemakaian Air Tanaman Palawija di Lahan Kering.” Buletin Keteknikan Pertanian, vol 14, issue 2, pp 139-149, 2000.

Kang S. and Zhang J. “Controlled alternate partial root-zone irrigation: its physiological consequences and impact on water use efficiency.” Journal of experimental botany, vol 55, issue 407, pp 2437-2446, 2004.

S. Najiyati, L. Muslihat and I.N.N. Suryadiputra. “Panduan Pengelolaan Lahan Gambut untuk Pertanian Berkelanjutan. Proyek Climate Change, Forests and Peatlands in Indonesia.” Bogor: Wetlands International - Indonesia Progamme. 2005.

R.P. Prawoto and J.G. Kartika. “Pengelolaan Aspek Produksi dan Pasca Panen Sayuran Daun Secara Aeroponik dan Hidroponik: Studi Kasus Lembang, Bandung”. Bul. Agrohorti, vol 4, issue 1, pp 9-19, 2016.

J.O. Rieley, A.A. Ahmad-Shah and M.A. Brady. “The Extern and Nature of Tropical Peat Swamps” in Maltby E et al., editor. Proc. Of a Workshop on Integrated Planning and Management of Tropical Lowland Peatlands, IUCN, pp 17-54, 1996.

Waluyo and Supartowo. “Peluang dan Kendala Pengembangan Pertanian pada Agroekosistem Rawa Lebak: Kasus Desa Kota Daro II di Kecamatan Rantau Panjang Kabupaten Ogan Ilir Sumatera Selatan.” in Proc. Prosiding Seminar Nasional Lahan Suboptimal, 2014, pp 704-713.




DOI: http://dx.doi.org/10.22135/sje.2019.4.2.104-108

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