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      Analisis Keseragaman Emisi dan Desain Ulang Sub Unit Irigasi Tetes untuk Budidaya Tanaman Bawang Merah

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      Date
      2022-08
      Author
      Putra, Billy Ricardo Hartono
      Prastowo, Prastowo
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      Abstract
      Salah satu masalah dalam penerapan irigasi tetes di Food Estate Humbang adalah kondisi lahan terbuka dengan topografi bergelombang. Penelitian ini bertujuan mengkaji ulang tata letak (layout), menganalisis keseragaman emisi (emission uniformity), mendesain ulang jaringan perpipaan sub-unit, dan menghitung estimasi biaya bahan perpipaan irigasi tetes. Hasil penelitian menunjukan kebutuhan debit maksimum per riser (QSU maksimum) pada jaringan utama (reservoir – box valve – riser) sebesar 0.79-3.52 liter/detik. Jaringan irigasi tetes terbangun pada 5 petak lahan yang diteliti seluas 7.4 Ha. Keseragaman emisi jaringan irigasi tetes berkisar 47.12-74.53%. Control station (riser) yang digunakan sebanyak 8 unit dengan total panjang pipa submain menjadi 1193 m (bertambah 369 m) dan pipa manifold menjadi 1311 m (bertambah 154 m). Estimasi biaya perpipaan irigasi tetes yang diperlukan untuk skenario 1 dengan water meter yaitu sebesar Rp 461.571.250,00 dan untuk skenario 2 tanpa water meter sebesar Rp 370.371.250,00. Penempatan pipa manifold sebaiknya tegak lurus kontur dalam batas kemiringan <15%, sedangkan penempatan pipa lateral sebaiknya searah dengan kontur agar keseragaman emisi penetes tergolong baik.
       
      One of the problems in the application of drip irrigation at the Humbang Food Estate is the condition of open land with wavy topography. This study aims to review the layout, analyze emission uniformity, redesign the sub-unit piping network, and calculate the estimated cost of drip irrigation piping. The results showed that the maximum discharge requirement per riser (maximum QSU) on the main network (reservoir – box valve – riser) was 0.79-3.52 liters/second. Drip irrigation network was built in 5 plots of land under study covering an area of 7.4 Ha. The uniformity of drip irrigation network emissions ranged from 47.12-74.53%. The control station (riser) used is 8 units with the total length of the submain pipe being 1193 m (increasing 369 m) and the manifold pipe being 1311 m (increasing 154 m). The estimated cost of drip irrigation piping required for scenario 1 with a water meter is Rp. 461,571,250.00 and for scenario 2 without a water meter it is Rp. 370,371.250.00. The placement of the manifold pipe should be perpendicular to the contour within the slope limit of <15%, while the placement of the lateral pipe should be in the direction of the contour so that the dropper emission uniformity is good.
       
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      http://repository.ipb.ac.id/handle/123456789/114376
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      • UT - Civil and Environmental Engineering [1043]

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      Indonesia DSpace Group 
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