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RANCANG BANGUN ALAT PENANAM DAN PEMUPUK JAGUNG (ZEA MAYS) TIPE TUGAL SEMI MEKANIS YANG ERGONOMIS Sugiana, I Wayan; Gunadnya, Ida Bagus Putu; Setiyo, Yohanes
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Tujuan dari penelitian adalah untuk mendapatkan rancangan alat penanam dan pemupuk jagung yang mampu meringankan pekerjaan petani dalam budidaya jagung khususnya melakukan penanaman dan pemupukan dalam sekali proses kerja. Metode yang digunakan dalam penelitian adalah membuat prototipe alat penanam dan pemupuk jagung tipe tugal semi mekanis yang dilakukan pengujian pada lahan 100 m2 tanpa olah tanah dengan kondisi digenangi 2-3 hari sebelum tanam pada jarak tanam 25 cm dalam barisan dan 75 cm antar barisan. Hasil dari pengujian menunjukan bahwa rata-rata keluaran benih jagung dan pupuk untuk setiap lubang tanam adalah 2 benih dan 31-40 gram pupuk dengan tingkat keberhasilan 86,88 % dan 95 %, kapasitas lapang efektif 0,0122 ha/jam, kapasitas lapang teoritis 0,0135 ha/jam dan kecepatan jalan penanaman 12 lubang/menit. The purpose of this research was to get a prototype of a maize planters and fertilizer that can simplify work of farmers in the cultivation of maize, especially planting and fertilizing in one work process. The method used in this research is to create a prototype of a planter and corn fertilizer semi-mechanical that tested on 100 m2 of land no-tillage with flooded conditions 2-3 days before planting at a spacing of 25 cm in a row and 75 cm between rows. The results of the test show that the average output of corn was 2 seed to each hole and 31-40 grams fertilizer with a success rate of 86,88 % and 95 %, effective field capacity 0,0122 ha/hour, theoretical field capacity 0,0135 ha/hour and the speed of planting was 12 hole/minute. The purpose of this research was to get a prototype of a maize planters and fertilizer that can simplify work of farmers in the cultivation of maize, especially planting and fertilizing in one work process. The method used in this research is to create a prototype of a planter and corn fertilizer semi-mechanical that tested on 100 m2 of land no-tillage with flooded conditions 2-3 days before planting at a spacing of 25 cm in a row and 75 cm between rows. The results of the test show that the average output of corn was 2 seed to each hole and 31-40 grams fertilizer with a success rate of 86,88 % and 95 %, effective field capacity 0,0122 ha/hour, theoretical field capacity 0,0135 ha/hour and the speed of planting was 12 hole/minute.
ISOLASI BAKTERI SELULOLITIK PENDEGRADASI SELULOSA DARI KOMPOS Arifin, Zainul; Gunam, Ida Bagus Wayan; Antara, Nyoman Semadi; Setiyo, Yohanes
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 7 No 1 (2019): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2019.v07.i01.p04

Abstract

This study aimed to isolate cellulolytic bacteria that have the potential to degrade cellulose taken compost samples from Temesi and Bondowoso, this study was also conducted to determine the ability of bacteria to degrade cellulose based on Congo red test and filter paper degradation test. All isolates were tested for cellulolytic activity using soluble Carboxymethyl Cellulose (CMC). Characterization was carried out by growing selected pure isolates on CMC media and then dripping 0.1% congo red to test the cellulolytic potential (cellulolytic potential was characterized by the emergence of clear zones around the colony). The results of isolation of bacteria obtained 38 isolates, namely 26 Bondowoso sample isolates and 12 Temesi isolates that were able to grow and utilize cellulose as a carbon source. But only fourteen isolates produced clear zones in the Congo red test with diameters ranging from 1.66  cm to 6.76 cm. Six isolates that have the largest diameters clear zone, were tested for  degradation of filter paper  (Whatman no. 1). Isolates bacteria of B2S8 obtained from Bondowoso compost samples has the highest ability to degrade cellulose on Whatman paper no. 1 as much as 51.30%. Keywords: Compost, Isolation, Screening, Cellulolytic Bacteria.
RANCANG BANGUN ALAT PEMANEN BUAH SALAK SEDERHANA Diptaya, Dewa Bagus Putu Prabha; Gunadnya, Ida Bagus Putu; Setiyo, Yohanes
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 2 (2020): inpress
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Salak (Salacca edulis, Reinw) yang buahnya dikenal sebagai snake fruit adalah sejenis tanaman palem yang tumbuh di dataran tinggi. Pohon buah ular memiliki batang dengan banyak duri dan memiliki batang yang panjang dan berduri. Tandan buahnya dekat dengan pohon, jadi tidak mudah untuk memanen dan mendapatkan tandan buah yang utuh. Tujuan dari penelitian ini adalah untuk merancang pemanen sederhana dan dioperasikan secara manual sehingga dapat mempercepat waktu panen operator. Alat ini memiliki pisau pemotong berbentuk sabit dan jaring untuk menangkap di bawahnya. Pegangan pemotong dan pegangan terbuat dari bahan pipa aluminium. Alat ini secara fungsional memotong satu tandan buah ular dan tandan terasa tepat di jaring sehingga kerusakan tandan buah dapat diminimalkan dan mempersingkat waktu panen. Pemanen diuji oleh 5 operator yang masing-masing memanen 10 pohon. Data yang dikumpulkan dianalisis dengan menggunakan metode deskriptif dan hasilnya menunjukkan bahwa alat panen yang dirancang bekerja dengan baik dengan efektivitas tandan buah utuh yang dipanen adalah 84,0% dan dengan waktu panen rata-rata 8,31 menit   Salak (Salacca edulis, Reinw) which its fruits known as snake fruit is a kind of palm plant that grows in the highlands. Tree of snake fruit has stems with many thorns and has long and thorny stalks. Its fruit bunches are closed to the tree, so it is not easy to harvest and to get intact fruit bunches. The purpose of this research was to design a simple and manually operated harvester so that it can speed up the harvesting time of operator. This tool had a sickle-shaped cutting knife and a net to catch underneath. The handle of the cutter and handrail sticks were made of aluminum pipe material. This tool functionally cut one snake fruit bunch and the bunch felt right in the net so that the damage of the fruit bunch could be minimized and shortened the harvesting time. Harvester was tested by 5 operators that harvesting 10 trees each. Collected data was analyzed by using descriptive method and the results showed that the designed harvesting tool worked well with the effectiveness of intact harvested fruit bunch was about 84,0% and with average harvesting time of 8,31 minutes.
DAMPAK PENGGUNAAN NAUNGAN PLASTIK TERHADAP PROFIL IKLIM MIKRO PADA BUDIDAYA KENTANG BIBIT (SOLANUM TUBEROSUM L) VARIETAS GRANOLA KELOMPOK G0 Ardika, I Putu Tantra; Setiyo, Yohanes; ., Sumiyati
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 1 (2019): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2019.v07.i01.p03

Abstract

Tujuan dari penelitian ini adalah untuk (1) mengetahui profil iklim mikro pada naungan plastik dengan warna plastik berbeda dan (2) mengetahui warna plastik untuk naungan yang sesuai terhadap peningkatan kualitas kentang varietas granola G0. Penelitian ini menggunakan rancangan acak lengkap masing-masing terdiri dari empat perlakuan dan tiga ulangan, yaitu perlakuan tanpa naungan, perlakuan naungan plastik warna bening, perlakuan naungan plastik warna biru dan perlakuan naungan plastik warna merah. Untuk pengukuran iklim mikro digunakan alat temperature and humidity meter dan light meter. Pengukuran iklim mikro dilakukan seminggu sekali yaitu setiap pukul 12.00 WITA. Analisis data intensitas cahaya matahari dilakukan membuat gambar dalam naungan menggunakan metose garis kontur, sedangkan data hasil pengukuran suhu udara, suhu tanah, kelembaban dan variabel kualitas yang diperoleh diolah dengan menggunakan program komputer Microsoft Excel untuk memperoleh grafik, lalu dianalisis dengan metode deskiptif, dan dilanjutkan analisis menggunakan analisis sidik ragam (ANOVA). Hasil penelitian intensitas cahaya matahari menunjukkan kontur profil saat tanaman berusia 2 minggu profil sebaran naungan warna bening 975-1025 lux, naungan warna merah 675-725 lux, naungan warna biru 575-595 lux, sedangkan pada tanaman berusia 8 minggu naungan warna bening 100-800 lux, naungan warna merah 100-700 lux, dan naungan warna biru 100-400 lux. Rata-rata suhu udara tanpa naungan 26,20C, naungan bening 26,80C, naungan merah 26,60C, naungan biru 26,20C. Rata-rata kelembaban tanpa naungan 76%, naungan bening 77%, naungan merah 78%, naungan biru 79%. Perlakuan naungan bening menunjukkan kualitas terbaik yaitu rata-rata 4,4 umbi per pohon, rata-rata berat 257,6 gram per pohon dan rata-rata 1 umbi per pohon. The purpose of this study was to (1) determine the microclimate profile of plastic shade with different plastic colors and (2) find out the color of plastic for the appropriate shade to increase the quality of granola G0 potato varieties. This study used a completely randomized design, each consisting of four treatments and three replications, namely treatment without shade,  transparent plastic shade treatment, blue plastic shade treatment and red plastic shade treatment. For microclimate measurement, the temperature and humidity meter and light meter are used. Microclimate measurement is done once a week, which is at 12.00 p.m. Analysis of sunlight intensity data was carried out to make profile image in the shade using metose contour lines, while the results of measurements of air temperature, soil temperature, humidity and quality variables obtained were processed using a Microsoft Excel computer program to obtain graphics, then analyzed using the deskiptive method and continued the analysis using variance analysis (ANOVA). The result of the intensity of sunlight is made profile countur, and the result of measurement of air temperature, soild temperature, moisture and variable quality is made graph. The results of the study of solar light intensity show the contour of the profile when the plant is two weeks old, the clear shade distribution profile is 975-1025 lux, the shade is read 675-725 lux, the shade is blue 575-595 lux, while in the eight week old plant, the clear shade is 100-800 lux, the shade is red 100-700 lux, and the shade is blue 100-400 lux. Average air temperature without shade 26,20C, clear shade 26,80C, red shade 26,60C, blue shade 26,20C, average moisture without shade 76%, clear shade 77%, red shade 78%, and blue shade 79%. The treatment of clear shade shows the best quality, that is an average of 4,4 tubers every single tree, average 257,6 grams every single tree and average of 1 tuber every single tree.
PENDUGAAN INTENSITAS SERANGAN PENYAKIT BLB (BACTERIAL LEAF BLIGHT) PADA TANAMAN PADI MELALUI PENDEKATAN CITRA MULTISPEKTRAL Chandra, Gusti Bagus Eka; Wijaya, I Made Anom S.; Setiyo, Yohanes
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 2 (2020): inpress
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Penyakit BLB merupakan salah satu penyakit yang berbahaya bagi tanaman padi. Penyakit ini bisa menyerang di setiap fase pertumbuhan. Perhitungan intensitas serangan penyakit BLB saat ini masih dilakukan secara manual. Diperlukan pengembangan teknologi dalam pendugaan intensitas serangan penyakit BLB melalui citra multispektral. Penelitian ini bertujuan untuk (1) untuk mendapatkan nilai korelasi terbaik antara intensitas serangan penyakit BLB dengan parameter citra multispektral (2) Untuk mendapatkan persamaan pendugaan intensitas serangan penyakit Bacterial leaf blight (BLB) berdasarkan pendekatan citra multispektral. Penelitian ini menggunakan Drone DJI Inspire 1 dengan kamera multispektral. Pengolahan data menggunakan Agisoft Photoscan dan software QGIS 3.8. Berdasarkan dari hasil akuisisi, citra multispektral menghasilkan citra band red, NIR, green, red edge, RGB yang kemudian diolah menjadi transformasi citra NDVI, EVI, dan NDRE. Dalam perhitungan nilai eror parameter NDVI memiliki nilai eror paling rendah dibandingkan parameter EVI dan NDRE yaitu sebesar 4,64% dengan akurasi pendugaan 95,36%. Validasi data parameter NDVI menghasilkan persamaan regresi antara intensitas serangan penyakit dengan pendugaan intensitas serangan penyakit sebagai berikut : y = 1,028x - 1,371 dengan koefisien determinasi sebesar 92,7%.   BLB is a disease that is dangerous for rice plants. This disease can attack in every phase of growth. Calculation of BLB disease attack intensity is currently still done manually. Required technology development in estimating the intensity of BLB disease through multispectral imagery. This study aims to (1) to get the best correlation value between the intensity of BLB disease attack with multispectral image parameters (2) to get the equation for estimating the intensity of Bacterial leaf blight (BLB) based on multispectral image approach. This research use Drone DJI Inspire 1 with a multispectral camera. Data processing was using Agisoft Photoscan and QGIS 3.8 software. Based on the results of the acquisition, multispectral images produce red, NIR, green, red edge, RGB band images which were then processed into transformations of NDVI, EVI, and NDRE images. In calculating the NDVI parameter error value has the lowest error value compared to EVI and NDRE parameters which was 4.64% with an accuracy of estimation of 95.36%. Validation of NDVI parameter data produces a regression equation between the intensity of disease attacks with the estimated intensity of disease attacks as follows : y = 1,028x - 1,371 with a coefficient of determination of 92.7%.
DAMPAK DOSIS KOMPOS KOTORAN SAPI TERHADAP PROFIL SUHU TANAH DI ZONA PERAKARAN DAN PRODUKTIVITAS TANAMAN PAKCOY (BRASSICA RAFA L) Wijaya, I Made Andi Purnama; Setiyo, Yohanes; Tika, I Wayan
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 7 No 2 (2019): September
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2019.v07.i02.p05

Abstract

Suhu tanah adalah salah satu sifat fisik tanah yang secara langsung mempengaruhi pertumbuhan tanaman pakcoy. Tujuan penelitian ini adalah (1) untuk menganalisis suhu di zona perakaran, (2) menganalisis hubungan antara dosis pemupukan mempergunakan kompos dengan suhu di zona perakaran dan (3) untuk menganalis suhu yang optimum untuk produktivitas dan kualitas pakcoy yang dihasilkan saat panen. Rancangan penelitian yang digunakan rancangan acak lengkap, dengan lima perlakuan dan tiga ulangan. Perlakuan tersebut adalah P0 : dosis kompos 0 kg/m2, P1 : dosis kompos 1 kg/m2, P2 : dosis kompos 2 kg/m2, P3 : dosis kompos 3 kg/m2, dan P4 : dosis kompos 4 kg/m2. Parameter yang diamati pada penelitian ini adalah suhu udara, suhulingkungan, kadar air tanah dan produktivitas. Padamalam hari suhu tanah di zona perakaran lebih tinggi 0,59 oC dari pada suhu lingkungan. Suhu tanah di zona perakaran terendah dan tertinggi adalah 18,02 oC dan 21,94 oC. Suhu tanah malam hari dan siang hari untuk dosis 0-5kg/m2 masih toleran pada tanaman pacoy. Berat kering tanaman pakcoy tertinggi pada perlakuan dosis kompos 4kg/m2 denganberat 92,21 gram/tanaman dan terendah pada perlakuan kontrol dengan berat 71,82 gram/tanaman.   The temperature of the soil is one of the physical properties of the soil, this soil physical properties direc2tly affect plant growth pakcoy.  The purpose of this research are (1) to analyze the temperature at root zone, temperature inside and out of the mini greenhouse, (2) analyze the relationship between temperature at root zone  with doses of compost fertilizer application and 3) to analyze the optimum dose of compost based on productivity and quality of the pakcoy is generated when the harvest. The design of the research used randomized complete design, with five treatments and three replicates. The treatment is P0: a dose of compost 0 kg/m, P1: a dose of compost 1 kg/m2, P2: a dose of compost 2 kg/m2, P3: the dose of compost 3 kg/m2, and P4: a dose of compost 4 kg/m2. The parameters observed in this research is the air temperature, the temperature of the environment, ground water levels and productivity.  At night the temperature of the soil rooting zone higher at 0.59 ÂșC than at the temperature of the environment. Soil temperature at root zone the lowest  and the highest  are 18.02 oC and 21.94 oC.  The temperature of the soil the night and during the day for dose 0-5 kg/m2 was still tolerant plants pakcoy. Dry weight of the plant the highest pakcoy on the treatment dose of compost 4 kg/m2  with a weight of 92.21 grams/lowest at the treatment plant and the control by the weight of 71.82 grams/plant.
KAJIAN RELEVANSI SIFAT PISKOKIMIA TANAH PADA KUALITAS DAN PRODUKTIVITAS KENTANG (SOLANUM TUBEROSUM L) Arsa, I Wayan; Setiyo, Yohanes; Nada, I Made
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 1 No 1 (2013): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

This research  was conducted to determine the effect level of NPK fertilizer added with compost fertilizer on soil psychochemical properties, the quality and the productivity of Granola G4 potatoes. This study lesed Split plot with : twosub plot, and four level doses NPK fertilizer. Each level of NPK fertilizing was repeated three times. NPK fertilizing levels are: 160 kg / ha (P1), 180 kg / ha (P2), 200 kg / ha (P3), and 220 kg / ha (P4), with chicken manure from compost. Dose of compost was  20 tonnes per hectare. Variable of this research were : soil structure, soil water holding capacity, permanent wilting point of crops, crops water availability, pH, soil organic matter, productivity and quality of petetues. Availability of water crops was between    21 ? 24 % wet basis (w.b).  Each level of NPK fertilization was able to change pH from 6.5 to 6.9.  Content of C-organic content at early potatoes planting was  4.0 ? 4.1 % and after potatoes harvesting the C-organic content was 4.7 ? 6.4 %. The potatoes productivity at NPK fertilization 200 tones/ha and 220 tones/ha was 30 tones/ha. The number of tubers can be used as seed was 38.4% and 36.5% with the number of tubers rot was 3.8 and 3.6%
PENGARUH PENAMBAHAN UREA PADA MEDIAD DAN PEMANASAN TERHADAP PRODUKSI BIOGAS Adiani, Kadek Mila; Gunadnya, Ida Bagus Putu; Setiyo, Yohanes
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 8 No 1 (2020): in press
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Biogas is one of the energy sources originating from livestock waste, besides being environmentally friendly (renewable energy), it can also be used for sustainable energy. Biogas is a mixture of gases resulting from an anaerobic fermentation process from livestock manure (cow). The purpose of this study was to determine the effect of adding various urea concentrations and heating in deep biogas production. This study applied a completely randomized design (RAL) with two treatment factors: heating (heating and without heating) and urea concentration (2%, 4%, 6%, 8%). Observations carried out in the form of measuring the temperature of biogas media, gas volume, CO2, the volume of methane gas, and the time of biogas formation. Variant analysis showed that the heating interaction and urea concentration showed a significant effect (P <0.05) on the measurement of biogas media temperature, gas volume, CO2, methane volume, and biogas formation time. The results showed that the combination of heating treatment with 8% urea concentration was the best treatment in producing biogas with the characteristics of gas volume of 16.67 ml, CO2 content of 0.08%, methane volume of 15.49 ml, with the time of biogas formation which is on the day 10.  
PENGARUH SALURAN AERASI PADA PENGOMPOSAN BERBAHAN BAKU JERAMI Budiarta, I Wayan; Sumiyati, s; Setiyo, Yohanes
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Sisa panen berupa jerami padi varietas unggul bisa mencapai 25 ton/ha dapat dimanfaatkan sebagai bahan baku pembuatan pupuk kompos. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh saluran aerasi terhadap proses pengomposan, dan mengetahui kualitas kompos yang dihasilkan dari bahan baku jerami. Penelitian ini menggunakan dua perlakuan yaitu: P1 : pengomposan jerami padi dengan saluran aerasi; P2 : pengomposan jerami padi tanpa saluran aerasi. Panjang tumpukan kompos 1,5 m, lebar 1 m, dan tinggi 1 m. Parameter yang diamati adalah suhu, kelembaban, kadar air, rendemen, pH, nitrogen, karbon dan rasio C/N. Proses pengomposan berlangsung selama 12 minggu. Proses pengomposan pada perlakuan pengomposan dengan saluran aerasi cenderung berjalan lebih lambat dibandingkan perlakuan pengomposan tanpa saluran aerasi. Kualitas kompos yang dihasilkan dari bahan baku jerami pada perlakuan P1 dan P2 sudah sesuai dengan standar kompos padat dari Peraturan Menteri Pertanian Nomor 70/Permentan/SR.140/10/2011. Crop residues such as supreme variety rice straw can reach about 25 ton/ha which can be used as raw material for composting. The purpose of this research were to determine the effect of channels aeration of the composting process, and to find the compost quality produced from rice straw. Two treatments were conducted, namely: P1 : rice straw composting with aeration channel; P2 : rice straw composting without aeration channel. About 1.5 m long, 1 m wide and 1 m high of dimension of compost heap respectively were conducted. The parameters measured were temperature, humidity, water content, yield, pH, nitrogen, carbon and C/N ratio. The composting process lasted for 12 weeks. The composting process in the composting treatment with aeration channels tend to run slower than composting treatment without aeration channels. The quality of the compost produced from rice straw on the treatment P1 and P2 were appropriate the standard compost appointed by Peraturan Menteri Pertanian Nomor 70/Permentan/SR.140/10/2011.
PENGARUH KADAR AIR TERHADAP PROSES PENGOMPOSAN JERAMI DICAMPUR KOTORAN SAPI Putra, Made Pila; Sumiyati, .; Setiyo, Yohanes
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 6 No 1 (2018): Maret
Publisher : Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

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Abstract

Varietas padi unggul yang dihasilkan dapat menghasilkan jerami padi dalam satu kali panen mencapai 25 ton / ha dapat digunakan sebagai bahan baku pupuk kompos. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh kadar air pada proses pengomposan jerami dan kotoran sapi, dan mengetahui kadar air yang sesuai agar proses pengomposan jerami dan kotoran sapi lebih cepat. Penelitian ini menggunakan 5 perlakuan yaitu: P1 (perlakuan kadar air 40%), P2 (perlakuan kadar air 45%), P3 (perlakuan kadar air 50%), P4 (perlakuan kadar air 55%), dan P5 (perlakuan kadar air 60%). Berat bahan untuk masing-masing perlakuan adalah 35 kg menggunakan perbandingan jerami dan kotoran sapi 3:4. Parameter yang diamati adalah suhu, kadar air, rendemen, pH, nitrogen, karbon dan rasio C/N. Suhu puncak maksimal dari 5 perlakuan adalah pada perlakuan kadar air 60% dengan suhu 49,8oC dan suhu puncak terendah adalah perlakuan kadar air 40% dengan suhu tertinggi 48,4 oC. Pengomposan awal, nilai pH berkisar 6,4-6,6 pada akhir proses pengomposan, nilai pH berkisar 6,9-7,2. Rasio C/N dari semua perlakuan memenuhi standar SNI yaitu rasio C/N berkisar 18,60-19,01. Kualitas kompos yang dihasilkan dari bahan baku jerami dan kotoran sapi pada kelima perlakuan sudah sesuai dengan standar SNI No. 19-70302004 digunakan sebagai acuan kualitas kompos.   High yielding rice varieties can be produced the rice straw in one harvest reached 25 tons/ha can be used as raw material for compost fertilizer. The purpose of this study was to determine the influence of water content in the composting process of rice straw and cow dung, and to know the appropriate water content for the process of composting the form rice waste and cow dung more quickly. This study used 5 treatments: P1 (with water content of 40%), P2 (with water content of 45%), P3 (with water content of 50%), P4 (with water content of 55%), and P5 (with water content of 60%). The material weight for each treatment was 35 kg using comparison of rice straw and cow dung 3:4. The parameters observed were temperature, water content, yield, pH, nitrogen, carbon and C/N ratio. The maximum peak temperature of the 5 treatments is at 60% water content with temperature of 49.8oC and the lowest peak temperature is a 40% water content with a highest temperature of 48.4oC. Early composting, pH values ranged from 6,4-6,6 and at the end of the composting process, pH values ranged from 6,9-7,2. The C/N ratio of all treatments meets the SNI standard ie the C/N ratio ranged from 18,60-19,01. The quality of compost that been produced from the raw materials of straw and cow dung on the five treatments was in accordance with the SNI standard no. 19-70302004 is used as a reference of compost quality.