ANALISIS WAKTU DAN BIAYA IRIGASI PADA SISTEM IRIGASI PIPA LEB DAN IRIGASI GENANGAN DI LAHAN KERING PRINGGABAYA

SURYANTO, IRFAN (2017) ANALISIS WAKTU DAN BIAYA IRIGASI PADA SISTEM IRIGASI PIPA LEB DAN IRIGASI GENANGAN DI LAHAN KERING PRINGGABAYA. S1 thesis, Universitas Mataram.

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Abstract

Pringgabaya is one area of dry land on the island of Lombok. Pringgabaya enough rainfall fluctuated notably in 2009. Situation makes it increasingly decreasing availability of land suitable for development of agricultural land. Surface irrigation led to a massive loss of water due to evaporation and infiltration. The system takes time to irrigate one hectare of agricultural land for 7-9 hours, while it fares well pump quite expensive at Rp. 25.000 to Rp. 35.000 per hour. Another problems is the spread of water on uneven plots, also resulted in flooding of process time becomes longer, so the grater the operational cost. Efforts to overcome this is to design a network of irrigation pipping. Irrigation piping plans made with 16 outlet within 4 meters. Irrigation inundation designed as used by farmers. Jetting governed by variation in the duration of irrigation 10, 15 and 20 minutes. Testing is done by searching for the value of soil moisture that is seeking interval time required moisture soil after irrigation to return to the initial moisture. Interval of time obtained is used to calculate the irrigation needs of the time during the time assumption of 60, 90 and 120 days and such data used to calculate the cost of irrigation requirement during the60, 90 and 120 days. Based on data analysis has been done obtained irrigation time difference of 0,83 hours to 2,5 hours. While the difference in the cost of irrigation is obtained by 25 % for a duration of 10 minutes, 33,33 % for the duration of 15 minutes and 25 % to 20 minutes duration of irrigation

Item Type: Thesis (S1)
Keywords (Kata Kunci): Duration of irrigation, soil moisture, time and cost of irrigation
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Fakultas Teknik
Depositing User: Wiwin Kartikawati
Date Deposited: 31 Jul 2018 06:25
Last Modified: 31 Jul 2018 06:25
URI: http://eprints.unram.ac.id/id/eprint/7033

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