45 research outputs found
RANCANGAN POLA PENGEMBANGAN IRIGASI POMPA DANGKAL BERDASARKAN DATA GEOSPASIAL PADA DAERAH IRIGASI POMPA III NAGARI SINGKARAK
No full textPemanfaatan pompa air dangkal sebagai alternatif pemecahan permasalahan dalam penyediaan kebutuhan air tanaman pada lahan pertanian di Daerah Irigasi Nagari Singkarak perlu diatur pola pengembangannya, sehingga keberlanjutan ketersediaan air tanah tetap terjaga. Rancangan pola pengembangannya memanfaatkan data geospasial sehingga dapat dikaji ruang atau wilayah layanan dari suatu pompa air dangkal. Berdasarkan hasil penelitian didapatkan DI Pompa III Nagari Singkarak dengan luas 61,93 ha mempunyai irigasi pompa dangkal sebanyak 40 unit (hasil survey Agustus 2013). Dalam pengembangan irigasi pompa dangkal dari hasil analisis berdasarkan luas layanan optimum, hanya dibutuhkan 32 unit pompa dangkal untuk DI Pompa III Nagari Singkara
Spatial Model of COVID 19 Distribution Based on Differences an Climate Characteristics and Environment of According to the Earth Latitude
No full textThe purpose of this research is to analyze the spread of COVID-19 on the earth's surface. The method used is a spatial method with the Geographic Information System (GIS) analysis technique. The results of this study explain that the spread of COVID-19 very much occurs in the region of moderate latitude. Besides, tropical climate conditions can also make the virus more quickly become unstable. The Coronavirus spreads faster in countries with high latitudes and humid climates. The spread and concentration of the COVID-19 virus increasingly to the poles are easier to develop, current conditions at high latitudes or poles are not significantly affected due to a small population concentration and population activity, so the virus cannot spread, because the body's virus does not find a host (human) to live and develop
Penggunaan Analisis Regresi Linear Berganda untuk Mendapatkan Model Prediksi Respon Asam Lemak Bebas dan Dobi Hasil Rebusan Tandan Buah Segar Sawit
No full textTarget of this research are : ( 1) Knowing physical result of steaming of Fresh Fruit Bunch; ( 2) Knowing the chemical of result of steaming of Fresh Fruit Bunch; ( 3) Finding model of prediction respon result of sterilization of Fresh Fruit Bunch ( 4 ) Determining time depth of steaming most precise to condition of raw material ( FFB ) to be sterilization. This research done at PT.Bio Nusantara Teknologi Bengkulu, by using horizontal type sterilizer. Research method the used experiment which is direct to be done at factory. Multiple regression analysis to analyse data obtained, to the investigation of influence of free variable to variable of respon representing indicator efficacy of sterilization operation. Result of research indicate that treatment of variation : heavy classification of bunches, fruit maturity and time depth steaming to have an effect on to respon result of sterilization perceived. Model of Prediction of met steaming respon as follows : Y1(Evaporation %) = 5,18 - 0,042 X1- 0,012 X2+0,082 X3 ; Y2 ( Fruit lose, g)=1629,96+8,14X1 - 3,22 X2 - 10,22 X3 ; Y3(Throughput apart mesokarp, g / men ) = - 0,748 - 0,297 X1 + 0,111 X2 + 0,336 X3 ; Y4 (percent heavy of mesokarp = 60,12 - 0,044 X1 + 0,018 X2 - 0,103 X3 ; Y5 ( Amount of kernel break = - 1,515 - 0,06 X1+ 0,035 X2 + 0,115 X3 ; Y6 ( FFA )= - 0,655 + 0,011 X1 + 0,029 X2 + 0,032 X3 and Y7 ( DOBI) = 5,205 - 0,001 X1 + 0,01 X2 - 0,024 X3. Time depth steaming correct to braise small FFB, unrippe = 95 minute with score assess 7; Small FFB, mature = 95 minute with score assess 6; Small FFB over mature = 90 minute with score assess 6. Time depth steaming correct for big FFB, unrippe = 100 minute with wight assess 6; Big FFB mature = 80 minute with score assess 5 and for big FFB, over mature = 95 minute with score assess 6
Pengaruh Penambahan Karagenan Terhadap Total Asam Minuman Jelly Sari Buah Kuini (Mangifera Odorata Griff)
No full textThis research was conducted to increase the selling value of kuini, because kuini is a fruit that is quite popular with the public because of the combination of sweet and sour taste in kuini, but kuini has a low shelf life because it is easily rotten caused by pests. The existence of kuini is abundant at the time of large harvest, but it is not accompanied by absorption in the market, causing losses at the level of kuini farmers. Therefore, it is necessary to process the kuini into a form of diversification of food products so that it can compete in the market and be able to increase the economic value of the kuini. This study aims to determine the effect of adding carrageenan to the total acid of the kuini juice jelly drink. The design used in this study was a completely randomized design (CRD) with 5 different treatments. Observational data were analyzed by means of variance (ANOVA) if significantly different, the DNMRT (Duncan New Multiple Range Test) test was carried out at a 5% significance level. The treatment of this research is the difference in the addition of carrageenan. The five treatments were A (Additional Carrageenan 0.2%), B (Add Carrageenan 0.4%), C (Add Carrageenan 0.6%) D (Add Carrageenan 0.8%), E (Add Carrageenan 1.0 %). The results showed that the addition of carrageenan had no significant effect on the total acidity of the kuini juice jelly drink
KAJIAN SEBARAN PRODUKTIVITAS PADI SAWAH MENGGUNAKAN DATA CITRA LANDSAT 8 DI DAERAH IRIGASI BATANG ANAI KABUPATEN PADANG PARIAMAN
No full textIrigasi skala besar pada umumnya memiliki ketersediaan air cenderung tidak merata dari hulu, tengah dan hilir, sehingga mempengaruhi akan produktivitas tanaman padi. Daerah Irigasi Batang Anai merupakan irigasi skala besar dengan luas daerah layanan 13.604 ha tentu membutuhkan waktu, tenaga dan biaya yang tinggi untuk melakukan perhitungan produktivitas secara manual. Salah satu teknologi yang dimanfaatkan untuk mendukung perhitungan produktivitas padi adalah dengan memanfaatkan algoritma nilai Normalized Difference Vegetation Indeks (NDVI) dari analisis citra Landsat 8 selama 6 tahunan. Melalui identifikasi umur tanaman padi dapat diketahui pola tanam dan waktu panen. Nilai NDVI pada saat akan panen atau padi berumur 14-16 MST dijadikan acuan untuk pendugaan produktivitas yang dikorelasikan dengan produktivitas data ubinan. Analisis pada umur 14-16 MST didapatkan hubungan negatif. Semakin tinggi nilai NDVI maka produktivitas semakin rendah dengan nilai koefisien determinasi (R2) adalah 0,8856. Dengan persamaan regresi yang didapatkan y = -9,4514x + 10,467. Terdapat nilai simpangan tertinggi 10,86 % atau 0,61 ton, sedangkan yang terkecil yaitu 1,45 % atau 0,07 ton. Sebaran produktivitas padi berdasarkan nilai NDVI di Daerah Irigasi Batang Anai dibagi menjadi tiga kawasan yaitu hulu sebesar 6,45 ton/ha GKP, tengah sebesar 6,46 ton/ha GKP, dan hilir sebesar 5,42 ton/ha GKP
KAJIAN LONGSOR AKIBAT GEMPA DI NAGARI TANDIKEK KECAMATAN PARTAMUAN KABUPATEN PADANG PARIAMAN SUMATERA BARAT, INDONESIA
No full textEarthquacke on 30th of September 2009 in West Sumatra had ruined Padang Pariaman, Agam, and Padang city districts. The damage was not only caused by the earthquake itself but also due to the landsliding following the earthquake, such as in Tandikek. Hundreds of people, houses, buildings, schools, as well as agricultural land (ricefield and dryland farming) were burried in Lubuk Laweh, Kepala Koto and Cumanak. This research was conducted by employing survey method and by observing the phenomenon of tuff pumice on how it was affected by earthquake and water. Then, soil characteristics were analysed based on soil physical data from previous research. Several soil characteristics analysed were soil texture, bulk density, structure and depth of solum, organic matter content, and permeability. Land characteristics were determined through field visit. Some land condition being observed was slope (percentage and length), stone exposed, soil water depth, and land use. Additionally, besides from field visit, the data were also obtained from topography and morphology maps derived from Google Earth. Rainfall data (monthly and annually) were collected from several nearby meteorology stations. Analyses for degree of landsliding risks for an area were used soil and land characteristics criteria causing landsliding. Based on field visit, it was seen that the research area was still susceptible to landsliding. This was due to the parent materials of the soil deriving from tuff pumice which is crumb structure and loamy texture on the top layer. Climate, especially annual rainfall in study site was high enough (approximately 4322 mm) which was evently distributed all year long without dry month. Slope of the area was > 45%, especially areas hit by landsliding. Land use was not based on soil conservation rule, such as coconut and arenga pinneca, and other mixed trees were planted on the area having > 45% slope. The results of the soil characteristic analyses showed that HARKAT interval of lansliding threat was 13 and land characteristics showed 20. Summation of HARKAT values from soil and land characteristics was 33. This number showed that the study site had high degree of landsliding risk. The possibility of areas would be hit by lansliding were Partamuan, Koto Timur, Sungai Geringging, and around Maninjau lake.Keywords : earthquake, soil and land characteristics, tuff pumice, wet tropical</jats:p
RASIONALITAS PARAKU DALAM MANAGEMEN SISTEM IRIGASI DI JORONG SITUGAR NAGARI TANJUNG BONAI KECAMATAN LINTAU BUO UTARA
No full textPenelitian bertujuan untuk melihat paraku sebagai alat bagi air tradisional yang mampu membagi air secara rasionalitas dalam memenuhi kebutuhan air irigasi. Penelitian ini dilakukan dengan cara mengukur debit air dengan menggunakan persamaan ambang lebar yang dikorelasikan dengan kebutuhan air setiap sawah yang terairi. Hasil penelitian menunjukkan bahwa adanya hubungan antara debit pada alat bagi paraku dengan kebutuhan air sawah yang terairi. Paraku mempunyai pola pengaturan air yang sangat proporsional dengan nilai efisiensi 87,9% dan efektifitas 84 %
