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Sumiyati
Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana. Kampus Bukit Jimbaran, Badung-Bali
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Pengaruh Pemberian Aerasi Pada Pertumbuhan Dan Produksi Selada (Lactuca Sativa L.) dengan Sistem Hidroponik Rakit Apung (Floating Raft Hydroponic System) Ni Kadek Sri Arini Dharmayanti; Sumiyati; Ni Luh Yulianti
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 1 (2022): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2022.v10.i01.p12

Abstract

The floating raft hydroponic system is one of the cultivationtechniquesto obtain a more controlled environmentfor plant. However, this system has a drawback which is lack of dissolved oxygen leading to root rot. This issue is overcome by providingaeration. This study aims to determine the effect of aeration on lettuce cultivation with a floating raft hydroponic system. The study used a randomized block design (RAK) with 4 treatments, namely a floating raft hydroponic system that was not given any aerator as a control (P0), a floating raft hydroponic systemthatwas givenan aerator with a flow rate of 700 liters/hour(P1); the floating rafthydroponic systemthat was given an aerator with a flow rate of 1500 liters/hour (P2), and a floating raft hydroponic system that was givenan aerator with a flow rate of 2000 liters/hour P3 and each treatment was repeated 4 times. The results showed P3 had a significant effect on changes in dissolved oxygen, the number of leaves, leaf width, root length, fresh weight, dry weight and leaf color. The P3 gave the best results among all other treatmentswith an average value of dissolved oxygen of 8.4 mg / L, the number of leaves 17.6, the value of leaf blade width 8.10, the value of root length29.70 cm, the value of shoot fresh weight 207.12, the value of the dry weight of the canopy 4.96, and the value of the leaf color is 48.31.
Audit Energi Listrik dan Penentuan Luas Area Hijau di Fakultas Teknologi Pertanian Univeritas Udayana Sebagai Usaha Mewujudkan Green Campus Jhosua Christianto; I Putu Surya Wirawan; Sumiyati
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 1 (2022): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2022.v10.i01.p13

Abstract

As an effort to achieve green campus, The Faculty of Agriculture Engineering (FTP) of Udayana University should perform an audit to know the suitability of the condition of The Faculty of Agriculture Engineering of Udayana University to the green campus using UI green campus metric guide. Some of the criteria that can be audited is the percentage of green area andAudit ofelectricity usage. This research is done to find out the percentage of green area and electricity usage in The Faculty of Agriculture Engineering of Udayana University compared to the criteria of UI green campus metric guide. Percentage of green area is measured using theodolite and the measurement of energy usage is done by Auditing the energy usage of FTP of Udayana universityThe measurement of green area in FTP of Udayana Shows that FTP Udayana has a green area of 4.185,278 m2with the percentage of 43,1% and has a score of 4 with 225 points according to the standard of UI green campus metric guide. As for the electricity usage, FTP has a score of 300 with the usage of 30,75 kWh/person/year. This result shows that in aspect that is shown above, The Faculty of Agriculture Engineering of Udayana University is sufficient with UI green campus metric guide in the criteria of percentage of green area and electricity usage.
Pengaruh Jenis Media Tanam Organik Terhadap Kualitas Media Tanam Ice Hera Widia; Sumiyati; Ida Bagus Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 10 No 1 (2022): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2022.v10.i01.p20

Abstract

One of the main components in farming is planting media.Agood planting medium has the criteria that it is able to maintain the moisture contentof the root area, there is sufficient air and the availability of nutrients. This study aims to determine the physical and chemical properties of the growing media mixed with organic matter. This study used a completely randomized design (CRD) with treatment of planting media types consisting of 100% soil (v) as control, soil mixed with husk charcoal 50%:50% (v/v), soil mixed with cocopeat 50%:50% (v/v) and soil mixed with sawdust 50%:50% (v/v). Parameters observed were physical properties including texture, volume density, particle density and chemical properties including nutrient content of N, P, K, pH, EC and organic matter. On the physical properties, namely the texture of the growing media increased in the value of the fraction of sand and clay, the volume densityandparticle densitydecreased after mixing with organic matter. In the chemical properties of nutrient content (N, P, K), EC and organic matterareincreased. The pH value of soil and soil mixed with rice husk charcoal has a neutral pH criteria, while the planting medium soil mixed with cocopeat and soil mixed with sawdust has a slightly acidic criteria.
Co-Authors I Putu Surya Wirawan Ice Hera Widia Ida Bagus Gunadnya Jhosua Christianto Ni Kadek Sri Arini Dharmayanti Ni Luh Yulianti