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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) International Journal of Oil Palm
Lisma Safitri
Institut Pertanian Stiper Yogyakarta
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Engineering Environmental Science

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TREN PERUBAHAN CROP WATER PRODUCTIVITY KAKAO (Theobroma cacao L. ) DI D.I. YOGYAKARTA Eka Suhartanto; Lisma Safitri
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 3 (2020): September 2020
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v9i3.237-247

Abstract

The studies on the Crop Water Productivity (CWP) of cocoa to increase productivity in the midst of water scarcity and climate change are currently underdeveloped. Thus, this study aims to find out the trends in climate, productivity, crop water use and CWP of cocoa plantations. The methods included collecting climate and productivity data during 2014-2019, simulating crop water use with Cropwat 8.0 software and analysing the changing trends of CWP in cocoa plantations, DI Yogyakarta. The results indicated the changes in productivity of cocoa plantation ranged from 0,41 – 0,53 tons / ha. The Crop Water Usage (CWU)  decreased from 11.107 m3 in 2014 to 8.482 m3 in 2019 under rainfed schenario. Subsequently, the trend of CWP tended to increase from 0,037 kgm-3 in 2014 to 0,059 kgm-3 in 2019. CWP of cocoa plantation increased when CWU decreased and productivity increased. CWP value illustrated that every 1 m3 of water used have produced 0,037 – 0,059 kg of dried cocoa beans. In terms of water use efficiency, this relatively small CWP value indicates that the level of water use by cocoa plants in DI Yogyakarta is inefficient that requires improvement in the future such as increasing land productivity and precision irrigation schemes for cocoa plantations.  Keywords: Cacao (Theobroma cacao L.), crop water productivity, crop water use, D.I Yogyakarta
Water Footprint Analysis of Oil Palm: (Case Study of the Pundu Region, Central Borneo) Lisma Safitri; Valensi Kautsar; Sentot Purboseno; Retno Keksi Wulandari; Adhy Ardiyanto
International Journal of Oil Palm Vol. 1 No. 3 (2018): September 2018
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

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Abstract

The rapid expansion of oil palm plantation areas in Indonesia is taking place every year. The impact is the emergence of various issues and opinions regarding the high environmental damage caused by excessive use of water by the crops. The water footprint scenario can be used to explain the usage of water for the oil palm. This is defined as the volume of water used to obtain one ton of fresh fruit bunches (FFB) in m3 yield-1 unit. The water footprint includes the green (water from precipitation), blue (water from surface and ground water resources) and grey water footprints (water used to dissolve fertilizers, pesticides and other chemical compounds). Based on these issues, this study was conducted to obtain the value of oil palm water footprint, in the case study area in Pundu, Central Borneo. Data used include climate, FFB production and the use of fertilizers and pesticides. The results show that the water footprint of oil palm is 1002.1 m3 ton-1 with the following plantation conditions: productivity was about 13.41 ton ha-1, the use of fertilizer was 0.12 ton ha-1, irrigation was assumed only given to pre-nursery and nursery activities. The green, blue, and grey water footprints was 876.7, 35.9 and 89.5 m3 ton-1, respectively. The oil palm in the research area were grown with the main source of water coming from precipitation, not from groundwater (blue WF is only 3.6% of total WF). The Grey WF was 8.9 % which is lower than the average Grey WF of oil crops worldwide.
Co-Authors Adhy Ardiyanto Eka Suhartanto Retno Keksi Wulandari Sentot Purboseno Valensi Kautsar