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All Journal Jurnal Ilmiah Wahana Pendidikan Jurnal Multidisiplin Indonesia
Rizqi Fajar Shidiq
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Pengaruh Penambahan Kompos Limbah Lumpur Kertas Dan Sekam Padi Pada Media Tanam Terhadap Pertumbuhan Dan Hasil Tanaman Bayam Merah (Amaranthus Gangeticus L) Varietas Mira Rizqi Fajar Shidiq; Muharam Muharam; Sulistyo Sidik Purnomo
Jurnal Ilmiah Wahana Pendidikan Vol 7 No 5 (2021): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.775 KB) | DOI: 10.5281/zenodo.5482360

Abstract

The experiment was carried out from May 2021 to August 2021 at Lahan Baru Universitas Singaperbangsa Karawang, Pasirjengkol Village, Majalaya District, Karawang Regency, West Java, The experiment method used in this study is an experimental method using a single factor Randomized Block Design (RAK), the number of treatments in this study consisted of 6 treatments repeated 4 times, the treatments consisted of : A (soil 100%), B ( soil 75% + Compost Paper 25%), C (Soil 75% + Rice Husk 25%), D (Soil 50% + Compost Paper 50%), E (Soil 50% + Rice Husk 50%), F (Soil 50% + Compost Paper 25% + Rice Husk 25%). The experimental results showed that the addition of compost waste paper mud and rice husks as a mixture of planting media gave significantly different effects on plant height 21 DAP and 28 DAP, number of leaves 21 DAP and 28 DAP, leaf area, root length, and fresh weight of red spinach. Treatment B, which was 75% soil + 25% paper compost, gave the highest yields for plant heights at 21 DAP and 28 DAP at 39.67 cm and 52.75 cm, the number of plant leaves at 21 DAP and 28 DAP at 28.00 strands and 46.50 strands, plant leaf area of ​​372.78 cm2, plant fresh weight of 78.56 grams, and treatment F namely 50% Soil + 25% Paper Compost + 25% Rice Husk gave the highest yield on the root length of red spinach of 43.95 cm.
A Comparison of The Effectiveness of Hollow Prism and Parallel Plans The Measurement of Fludia's Refresh Index: Case Study On Aquades and Alcohol Rizqi Fajar Shidiq; Indira Gustaviana Nugroho; Irfan Daniel; Fuji Hernawati Kusumah; Rabina Amara Yusra; Ahmad Suryadi
Jurnal Multidisiplin Indonesia Vol. 1 No. 2 (2023): Juni : Jurnal Multidisiplin Indonesia
Publisher : PT. ALHAFI BERKAH INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62007/joumi.v1i2.225

Abstract

A refractometer is a tool used to measure the refractive index of fluids. However, there are several issues, including the considerable cost involved and the fact that not all school laboratories have this tool. Therefore, we conducted a study to compare the accuracy of refractive index values using a hollow prism and a plan parallel prism. Among the various methods available today, refraction is a relatively simple and cost-effective method for determining the refractive index of fluids. In measuring the refractive index of fluids, the use of containers or vessels is essential. Following a review of existing studies, two commonly used types of vessels were identified: the cube-shaped vessel (plan parallel) and the hollow prism. This research aims to compare the refractive index results obtained using a hollow prism and a plan parallel prism, using two samples—namely, distilled water (aquades) and alcohol—which have predetermined values in the refractive index table. The results indicate that the refractive index value for aquades using a plan parallel prism is 0.97, while with a hollow prism, it is 1.33, where the true refractive index value is 1.33. For alcohol, the results using a plan parallel prism are 0.91, and with a hollow prism, it is 1.35, where the true refractive index value is 1.36. The conclusion drawn is that using a hollow prism yields refractive index values for both aquades and alcohol that closely approximate the true refractive index, compared to the use of a plan parallel prism.
Co-Authors Ahmad Suryadi, Ahmad Fuji Hernawati Kusumah Indira Gustaviana Nugroho Irfan Daniel Muharam Muharam Rabina Amara Yusra Sulistyo Sidik Purnomo