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Nazif Ichwan
Program Studi Keteknikan Pertanian Fakultas Pertanian Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Engineering

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Performance Study of Drip Irrigation on Andosol Soil with Caisim (Brassica junceaL. ) Cultivation Dinda Puspa Sari; Sumono Sumono; Nazif Ichwan; Achwil Putra Munir
Jurnal Rekayasa Pangan dan Pertanian Vol 2, No 3 (2014): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Drip irrigation is a more economic method in distributing the water on caisim plant cultivation. This research was aimed to study the drip irrigation performance on Andosol soil with cultivation of caisim plant (Brassica juncea L.). The parameters observed were the characteristic of the soil physics, evapotranspiration, percolation, emission uniformity, use of water and the efficiency of water usage, wet weight and dry weight of caisim plant.Sanded clay textured andosol soil, evapotranspiration on the first growth phase was 0,72 mmday-1, on the middle phase was 1,92 mmday-1 and on the last phase was 0,96 mmday-1. The highest percolation was 2,65 mmday-1 on the middle growth phase on the planted soil and the lowest was 1,11 mmday-1 on the last growth on the non planted soil. The number of emission uniformity was 90,22 %. Efficiency of the highest water usage in the last growth phase on the soil without plant was 35,54 % and efficiency of the lowest in the middle growth phase on the palnted soil was 13,96 %. Efficiency of saving was 100 % on the middle growth phase and on the last. The wet  weight of caisim palnt was 129,5 g while the dry weight of caisim palnt was 7,83 g. Keyword : efficiency, drip irrigation, irrigation performance, Caisim plant, Andosol soil.
The determination of Erosion Rate on Andepts Soil Using Peanut Plants and Bench Terrace With USLE Methods and Small Plots in Kwala Bekala Estate University of North Sumatera Rifki Iqromi Purba; Sumono Sumono; Nazif Ichwan
Jurnal Rekayasa Pangan dan Pertanian Vol 3, No 1 (2015): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

The way to prevent the broken soil (erosion) can be using vegetation methods (plants)  and mechanical methods (terrace). This study was aimed to determine tolerable erosion rate and Erosion Hazard Level (TBE) the Andepts soil erosion using peanuts and bench terrace with slope of 9%, in April-July 2014 in the District Kwala Bekala using small plots and USLE predictions.The results showed that the amount of erosion using small plots for control land were 1,79 ton/(ha.year), on peanuts land were 1,18 ton/(ha.year), on bench terrace land were 0,62 ton/(ha.year) respectively with low Erosion Hasard Level (TBE) category. USLE predictions based on 10 years of rainfall data for control land were 49,34 ton/(ha.year), on peanuts land were 9,86 ton/(ha.year), on bench terrace land were 17,27 ton/(ha.year) respectively with Erosion Hazard Level (TBE) category of low to moderate. Predictions based on the USLE 4 months rainfall data for control land were 6,28 ton/(ha.year), on peanuts land were 1,25 ton/(ha.year), on bench terrace land were 2,19 ton/(ha.year) respectively with low Erosion Hazard Level (TBE) category. The amount of tolerable erosion rate is 29 tons/(ha.years). Keywords: Andepts Soil, Bench Terrace, Erosion, Peanuts
Test of Rotor Gap and Varian of Knife Edge Shape on Mechanical Coffee Pulper Equipment Singular Cylinder Adella Ginting; Achwil Putra Munir; Nazif Ichwan
Jurnal Rekayasa Pangan dan Pertanian Vol 3, No 2 (2015): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

There were still found crushed coffee beans and unpeeled coffee in pulping of coffee. Quality of coffee was affected by rotor gap and blade variation. This research was held to test the rotor gap and blade variation on parameters measured, i.e effective capacity of the equipment, unpeeled beans percentage, crushed beans percentage, percentage beans in wet skin output and percentage wet skin in beans output. This research used factorial completely randomized design with two factors i.e rotor gap (0.8, 1.0, 1.2, 1.4 cm) and variant of blade (linear, curve, triangle and half of circle).The result showed that the rotor gap had significantly affected all parameters. Variant of blade had significantly affected all parameters except percentage beans in wet skin output. The interaction of the two factors had significantly affected all parameters except percentage beans in wet skin output and percentage wet skin in beans output. The best result was the combination of 1.0 cm gap with half of circle blade which resulted effective capacity of 170.79 kg/hour, unpeeled beans percentage of 8.33%, crushed beans percentage of 2.83%, percentage beans in wet skin output of 9.83% and percentage wet skin in beans output of 7.08%. Key words: coffee, pulping, rotor gap, blade
Study of Coefficient of Seepage Irrigation in Tertiary Canals at Village of Kuala Simeme Namorambe District Deli Serdang Darwana Darwana; Sumono Sumono; Nazif Ichwan
Jurnal Rekayasa Pangan dan Pertanian Vol 3, No 2 (2015): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Land water distribution system in the villageof Kuala Simeme is done through tertiary ground channel. Water can loss through evapotranspiration, percolation, and seepage that may affect of the efficiency of water delivery.Of the three factors, the determination of the value of water loss throught seepage in the field was more difficult. This study was aimed to assess the seepage coefficient at two tertiary irrigation canal in the village of Kuala Simeme District of Namorambe, Deli Serdang.The results showed that seepage coefficient in the right edge of the first canal was 3.775,68 mm/day, at the left edge was 10.368,8 mm/day; at the right edge of second canal was 34.368,51 mm/day and at the left edge was 9.562,13 mm/day. Efficiency on first that canal and second canal were 91,02% and 81,73% respectively. Keyword: Tertiary Canal, Efficiency Distribution of water and seepage coefficient
Study of The Efficiency of The Production Costs of Agricultural Resources for Tillage in Wet Rice Fields in The Village of North Pelawi District of Babalan Langkat Ahmad Rizan Fadli; Saipul Bahri Daulay; Nazif Ichwan
Jurnal Rekayasa Pangan dan Pertanian Vol 3, No 3 (2015): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

One way to increase agricultural output in by agricultural intensification. One example of agricultural intensification is the use of appropriate processing resources. This study was aimed to assess the comparative efficiency of production costs and field capacity of processing time and processing resources of land use. Parameters measured were effective field capacity, the efficiency of tractors, fuel consumption, and economic analysis/processing fee. The results showed that the processing resources and processing time on wetland soil had significant effect on the effective field capacity and energy efficiency of the engine. Effective field capacity in the processing of land by human power in the morning was 0.056Ha/h and in the afternoon was 0.081Ha/h. Effective field capacity on the ground with the processing power of the engine in the morning was 0.787Ha/h and in the afternoon was 1,148Ha/h. The efficiency of the tractor in the morning was 61.357% with a fuel consumption was 1,041liters/hour. The efficiency of tractors in the afternoon was 89.492% with a fuel consumption was 1,338liters/hour. Processing costs for manpower resources in the morning and with afternoon was 2.000.000Rp/Ha and for the source of mechanical power in the morning was 882.300Rp/Ha and in the afternoon was 881.400 Rp/Ha. Keywords: effective field capacity, the cost of processing, wet rice.
Design Construction of Shrimp Paste Molder Muhammad Rasyid Lubis; Ainun Rohanah; Nazif Ichwan
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 4 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Manual molding shrimp paste was considered not attractive because the shape of the paste was not the same and reduced the price of shrimp paste. The purpose of this research was to design, build, test and analyze the economic value of shrimp paste molder. This research was conducted in by literature study, equipment tests and parameters observation. The parameters observed were effective capacity, yield and economic analysis. Based on this research, it was summarized that the effective capacity of the equipment was 51,54 kg/hour and the yield was 71,33%. Economic analysis was as follows: basic costs for the first to the fifth year was Rp.224,59/kg, Rp.225,16/kg, Rp.225,38/kg, Rp.226,45/kg, Rp.227,16/kg respectively. Break even point (BEP) was at 161,85 kg/year of shrimp paste molded. Net present value (NPV) was Rp.210.420.009. Internal rate of return (IRR) was 47,64%. Keywords: shrimp paste, molder, machine
Co-Authors Achwil Putra Munir Adella Ginting Ahmad Rizan Fadli Ainun Rohanah Darwana Darwana Dinda Puspa Sari Muhammad Rasyid Lubis Rifki Iqromi Purba Saipul Bahri Daulay Sumono Sumono