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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Agricultural Biosystem Engineering
M. Zen Kadir
Universitas Lampung
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology

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THE EFFECT OF AERATION ON BABY KAILAN (Brassica oleraceae var. Achepala) GROWTH IN FLOATING SYSTEM OF HYDROPONIC TECHNOLOGY INSIDE AND OUTSIDE THE GREENHOUSE Dian Krisnawati; Sugeng Triyono; M. Zen Kadir
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 3 (2014)
Publisher : The University of Lampung

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Abstract

This research is aimed to find out the effects of aeration on baby kailan (Brassica oleraceae var. Achepala ) infloating systemhidroponic technology inside and outside the greenhouse. This research used a factorial in a splitplot design with 2 factors, namely factor I (weation) and Factor II (aeration). The first factor had two levels,inside (N0) and outside (N1) greenhouse. The second factor consisted of 3 levels; mechanical aeration (A1),hanging styrofoam (A2) and floating styrofoam (A3); resulting in six treatment combinations with threereplications. The data was analyzed using ANOVA (analysis of variance) at 5%significant level and folowed byLSD. The results showed that the inside and otsutside greenhouse significantly affected growth and yield. The useof aeration outside the greenhouse had shownmaximal production. The hanging styrofoamsystem (A2) insidethe greenhouse showed the lowest production cost (fertilizer and electricity. None of the environment andnutrition parameters (EC, DO and pH) was significantly different during the research, implying that theenvironment and nutrion solutionwere homogeneous and did not affect the plant growth.
Unjuk Kerja Alat Pemotong Pelepah Sawit Tipe Egrek Secara Manual dan Mekanis Menggunakan Mesin Husqvarna 327 LDx Sandi Asmara; Forky Indra Kano; M. Zen Kadir; Siti Suharyatun
Jurnal Agricultural Biosystem Engineering Vol 2, No 1 (2023): Maret 2023
Publisher : abe.fp.unila.ac.id

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The cutting of palm frond using sickle manually produces low productivity and high accident risk. Therefore, it is required a mechanical sickle that can increase its productivity and reduces the risk of a work accident. The purpose of this research was to determine work capacity, workload, and energy requirement. The treatment in this research was based on the differences of high oil palm trees (5 m and 7 m) and the number cut off fronds (5, 10 and 15).  The result showed the comparison of the highest capacity between manual and mechanical sickle at 5 m height counted 494 and 743 fronds/hour and at 7 m height of 676 and 817fronds/hour. In workload testing there is data that is needed to rest on the operator, that is on testing data of 10 fronds and data of 15 fronds manually with tree height of 5 m and 7 m and on other test data including activities that do not cause operator fatigue. The range energy requirement for oil palm frond cutting process of 5 fronds, on the height of trees 5 m and 7 m all data are included in the classification of light workloads with Energy Expenditures with a range of 2.5-5.0 Kcal/minute. The range energy requirement for oil palm frond cutting process of 10 fronds and 15 fronds, on the height of trees 5 m and 7 m all data are included in the classification of moderate workloads with Energy Expenditures with range 5,0-7,5 Kcal/minute. Keyword: A Mechanical Sickle Type with Husqvarna Machine 327 LDx, Oil Palm Frond, Manual Sickle Type.
Co-Authors Forky Indra Kano Sandi Asmara Siti Suharyatun Sugeng Triyono