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Sirajuddin H. Abdullah
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Agriculture, Biological Sciences & Forestry

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Analisis Peluang Curah Hujan Untuk Penetapan Pola Dan Waktu Tanam Serta Pemilihan Jenis Komoditi Yang Sesuai Di Desa Masbagik Kecamatan Masbagik Kabupaten Lombok Timur: Analysis on Rainfall Probability for Determine Pattern and PlantingPeriodand Selection of Appropriate Commodity at Masbagik Village in Masbagik District East Lombok Iga Dainty; Sirajuddin H. Abdullah; Asih Priyati
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 4 No 1 (2016): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

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Abstract

Climatic factor, such as rainfall, greatly contributes to the availability of water for crops. Farmers set a schedule and cropping patterns based on habits, such as the period of rainy month. This method is lack precision on determining crops pattern and often increasing the risk of crop failure. This study aims to determine rainfall probability in Masbagik village on growing season of 2015-2016. Research method was descriptive analytical method. Results of this research revealed that the general rainfall pattern of the study area was still following general pattern of the previous year. Rain probability that approached natural precipitation at the field of study was 50%, with the highest limits at December by 304.5 mm and the lowest at October by 37 mm, while general rainfall probability was normal. Rainy season was predicted to start at mid-November and end at early June, while dry season occurs from early May and end in early November. Recommended scenario of the first growing season for the crop is starting at mid-November until the end of February and the second growing season start at mid-March until June 2015. Moreover, planting time for growing rice can be carried out at mid-October, while from early March growing crops is more suitable.
Pengaruh Kecepatan Putar Pengadukan Adonan terhadap Sifat Fisik Roti (Effect of Dough Mixing Speed on Bread Physical Characteristic): Effect of Dough Mixing Speed on Bread Physical Characteristic Asih Priyati; Sirajuddin H. Abdullah; Guyup Mahardhian Dwi Putra
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 4 No 1 (2016): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

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Abstract

This research aimed to study effect of dough mixing speed on bread physical characteristic. Dough mixing is an important process on bread production. At this process, the cohesive elastic characteristic will occur from gluten that attach water molecule. Method used in this research was experimental approach using Completely Randomized Design with variation of mixer speed and determined correlation between physical characteristic of the expansion bread after fermentation and after baked in the oven, bread mass, bread pore, and bread water content. Mixer speed variation of 100, 150, and 200 rpm using three replications had been conducted. Result showed that mixing process using higher speed produced bigger bread mass, larger bread pore, and higher water content.
Aplikasi Mikrokontroler Arduino Pada Sistem Irigasi Tetes Untuk Tanaman Sawi (Brassica Juncea) (Application of Arduino Microcontroller on Drip Irrigation for Mustard Plant (Brassica juncea): Application of Arduino Microcontroller on Drip Irrigation System for Mustard Plant (Brassica juncea) M. Salman Ibnu Chaer; Sirajuddin H. Abdullah; Asih Priyati
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 4 No 2 (2016): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

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Abstract

Arduino Uno microcontroller (ATmega328) is an automatic control device which function to control, capture and store data that can be used to design electronic circuits to control on/off irrigation. In order to determine its performance, application of on/off irrigation control circuit in agriculture field need to be conducted. Mustard plant were selected for this experiment due to its sensitivity on irrigation. Purpose of this study was to applied control system based drip irrigation using Arduino microcontroller on mustard plant cultivation to compare growth and productivity of mustard plant using automatic irrigation based microcontroller and using manual irrigation, which adjusted to plants water requirement. Method used in this research was experimental method by trial on the field. Observed parameter consist of changes in moisture content, performance of on/off irrigation control system, quantity of irrigation water, plant height, number of leaves, length and width of the leaves, plants weight and crop productivity. Setting point for lower limit soil moisture content was 25.47% and the upper limit was 28.73%. During the experiment, three times watering were conducted, i.e. at 11, 16 and 20 days after planting, with total quantity of water 5,200 ml. Height of mustard plants using automatic irrigation was 21.26 cm and using manual irrigation was 22.6 cm; number of mustard plant leaf using automatic irrigation was 13 leaves and using manual irrigation was 13.4 leaves; length and width of mustard plant leaf using automatic irrigation was 17.07 cm and 8.05 cm, while using manual irrigation was 20.75 cm and 9.73 cm; mustard plant productivity using automatic irrigation was 13.54 ton/ha and using manual irrigation was 17.41 ton/ ha.
Analisis Teknis dan Kajian Ergonomika berdasarkan Antropometri pada Penggunaan Traktor Tangan untuk Lahan Sawah (Anthropometry based Technical Analysis and Ergonomic Studies on Utilization of Hand Tractor for Farm Field: Anthropometry based Technical Analysis and Ergonomic Studies on Utilization of Hand Tractor for Farm Field Endang Sulnawati; Sirajuddin H. Abdullah; Asih Priyati
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 4 No 2 (2016): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

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Abstract

Purpose of this research was to analyzed technical utilization of hand tractors for farm field, analyze suitability of body dimension anthropometry data with dimension of hand tractors Yanmar Bromo Model V2 TF 85 MLY, and determine working load level by measuring operator’s pulse rate when using tractors for land preparation. This research conducted at Terara village, Terara district in East Lombok using field experimental method. Examined parameters, regard to technical test, were theoretical field capacity, effectivity and efficiency. Additional examined parameters based on ergonomic were anthropometry analysis and measurement of operator’s pulse rate. Results showed that the theoretical field capacity was 0.065 ha/hour and the effective field capacity was 0.025 ha/hour. Land processing efficiency was 38.38%; time lost during processing greatly affect the efficiency, where some of them caused by overlapping, slip, time for turning, and congestion (which share the greatest percentage of 30.35%). Results from anthropometry data measurement showed that the ergonomic dimensions for the tool are < 68.57 cm of gear level position from end of the handle, <95.27 cm of handle height position, <39.05 cm distance between grip, >8.82 cm handle length, and <9 cm distance of left and right turn lever. Tool’s dimension that already ergonomic, based on the results of anthropometry data measurement was position of gear lever from end of the handle with value of 68.57 cm and handle length with value of 8.82 cm. Operator’s working load level when using Yanmar Model TF 85 MLY Bromo V2 Tractor could be classified as moderate, with operator’s pulse rate of 100-125 sec/mnt.
Co-Authors Asih Priyati Asih Priyati Endang Sulnawati Guyup Mahardhian Dwi Putra Iga Dainty M. Salman Ibnu Chaer