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All Journal Ganec Swara
I D G Jaya Negara
Teknik Sipil, Fakultas Teknik, Universitas Mataram, Nusa Tenggara Barat

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PENGARUH VARIASI PANJANG PIPA PERFORASI PVC TERHADAP DISTRIBUSI IRIGASI DAN HUBUNGAN REGRESI YANG DIPEROLEH: The Effect Of Variations In The Length of PVC Perforated Pipe On Irrigation Distribution And The Regression Relationship Obtianed I D G Jaya Negara; Heri Sulistiyono; Anid Supriyadi; Humairo Saidah; Lalu Muhamad Dicko Febriza
Ganec Swara Vol. 20 No. 1 (2026): Maret 2026
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/gara.v20i1.592

Abstract

A perforated irrigation system composed of a network of perforated pipes through which water is pumped under pressure is expected to exhibit a specific flow pattern as its length is increased. This effect is also estimated on the magnitude of irrigation flow at each perforation along the pipe. Therefore, this phenomenon needs to be studied to achieve even irrigation distribution. The magnitude of differences in irrigation yields and the magnitude of irrigation that occur, along with the regression relationship between parameters, also need to be understood so that the perforated pipe design can provide flow according to application requirements. The study aimed to determine the regression relationship between test parameters of a perforation network using three ½" diameter pipes, with a pipe spacing of 100 cm and a perforation hole spacing of 0.6 m. Data analysis included irrigation yields, irrigation deviations, and variations in perforation pipe length. The results were presented in tables and graphs, and regression graphs were discussed and conclusions drawn descriptively. The results showed that increasing the length of the perforation pipe resulted in a smaller irrigation flow, resulting in smaller yield differences. Irrigation flow was irregular, and several polynomial linear regression relationships were found at P3 with R values ​​ranging from 0.6 to 0.9 at a pipe length of 600 cm
ANALISIS REGRESI HASIL UJI INFILTRASI LAHAN SAWAH TADAH HUJAN TANAH LEMPUNG DI KABUPATEN LOMBOK TENGAH BAGIAN SELATAN: Regression Analysis Of Infiltration Test Results Of Rain-Feeded Rice Fields With Clay Soil In Southern Central Lombok Reg I D G Jaya Negara; Hartana Hartana; Dewandha Mas Agastya; Anid Supriyadi
Ganec Swara Vol. 20 No. 2 (2026): Juni 2026
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/gara.v20i2.666

Abstract

The presentation of test results significantly influences the conclusions drawn from a test, such as the infiltration rate test for rain-fed rice fields conducted in Pujut District, Central Lombok Regency. Infiltration tests show various patterns, both in the time it takes to achieve constant infiltration and the length of the measurement data obtained. Continuing the test will yield more data, and the longer the test data, the stronger or weaker the regression relationship. The field infiltration study was conducted in rain-fed rice fields on clay soils and surrounding areas. A double-ring infiltrometer was used as the test equipment, and the tests were conducted during the dry season. The data used for analysis were infiltration data and the duration required for the test to achieve constant infiltration. The analysis results show that the constant infiltration rate obtained at test locations 1 to 5 is 2.5 cm/hour, 2.4 cm/hour, 2 cm/hour, 2.6 cm/hour and 2.6 cm/hour, respectively. For land that is still purely used for rice farming, the value is 2.4 cm/hour and the infiltration rate is still smaller than land that has been used as yard or plantation land which is 2.6 cm/hour. After constant infiltration occurs, the use of longer data (25 data) in logarithmic regression produces a determinant value of 0.6813 and the use of less data (16 data) produces a determinant value of 0.8581.
Co-Authors Anid Supriyadi Anid Supriyadi Dewandha Mas Agastya Hartana Hartana Heri Sulistiyono Humairo Saidah Lalu Muhamad Dicko Febriza