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The Effectiveness of Using Planting Media Based on Biotechnology Agents on the Growth of Wijayakusuma (Epiphyllum oxypetalum (DC.)Haw.) Hesti Fitria Dewi; Ida Yayu Nurul Hizqiah; Cartono Cartono; Mimi Halimah
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3931

Abstract

Wijayakusuma ornamental plant (Epiphyllum oxypetalum (DC.) Haw.) is a plant that is easily propagated by cuttings. To overcome this problem, it is necessary to pay attention to the planting media used. This study aims to determine the effectiveness of providing planting media based on biotechnology agents on the growth of Wijayakusuma ornamental plants. This study is a quasi-experimental quantitative study using a Randomized Block Design, this study used six treatments with four replications. Follow-up test using Duncan's Post-Hoc Test at a level of 5% using SPSS version 26 program. The results of the analysis of various studies stated that planting media based on biotechnological agents with a mixture of burnt husks, cocopeat, raw husks, andam, livestock manure and liquid fertilizer obtained results < 0.05 which means that it has a significant effect on the parameters measured, such as the number of leaves, stem height, and plant root length. These results indicate that the effectiveness of using growing media containing potassium, calcium, phosphorus, through the fermentation process, contains biotechnological agents such as rhizobium, mycorrhizae, and phytohormones that affect plant growth. The most optimal composition of planting media based on biotechnology agents for plants based on Duncan's Post-Hoc test results is T2 treatment with a composition of growing media based on biotechnology agents + roasted husk growing media. Then there is no relationship between climatic factors with the growth of ornamental plants Wijayakusuma. Wijayakusuma plants grow well in places that are not exposed to direct sunlight, normal environmental temperature and humidity, moist soil that is neither too wet nor too dry, and optimal soil pH.
Students' Communication Skills Through the Application of Learning Management System Schoology on Environmental Change Materials Desti Sri Setianti; Mia Nurkanti; Mimi Halimah
Jurnal Pendidikan Biologi Vol 11, No 3 (2022): Jurnal Pendidikan Biologi
Publisher : Magister Pendidikan Biologi, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpb.v11i3.37598

Abstract

Communication is one of the skills that play an important role in the scope of life. Especially in the world of education, the ability to communicate can be improved through learning with innovative media delivered by teachers during teaching and learning activities. In supporting learning, one of the sophisticated digital media that is easily accessible is the learning management system Schoology. The purpose of this research is to find out the improvement of students' communication skills on the material of environmental change in senior high school through the application of the learning management system Schoology. Learning Management System Schoology is a site that combines the features of social networking and LMS. The method used is pre-experimental in the form of one group Pretest-Posttest design and the sampling technique is purposive sampling. The subjects in this study were students of class X MIPA 7 at SMAN 1 Palimanan, totaling 30 people. Based on the results of the calculation of N-gaincalculation it is known that this study has a significant developmental impact. The results showed an increase in students' communication skills by 16.92%. The average value of the Pretest is 65 which is included in the "Enough" category and increased in the Posttest with a value of 76 which is included in the "Good" category. Thus, it can be concluded that there is an increase in students' communication skills through the application of Learning management system Schoology on environmental change material in senior high school.
THE USE OF ECO ENZYME-BASED MUDBALLS IN REDUCING COD AND TSS POLLUTANTS IN POLLUTED RIVERS Yustiani, Yonik Meilawati; Nugroho, Fadjari Lucia; Halimah, Mimi; Agustina, Monica; Herbimaya, Azahra Siti; Sudarjanto, Gatut; Humam, Ivan Aliyatul
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 8, NUMBER 1, APRIL 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v8i1.22601

Abstract

Aim: This study aims to investigate the effectiveness of Eco Enzyme and EM1-based mudballs in improving river water quality by reducing COD and TSS. Methodology and Results: The study was conducted using an experimental method in the laboratory with four variations of mudballs, i.e. mudballs without additions, mudballs with Eco Enzyme, mudballs with effective microorganisms (EM1), and mudballs with a combination of Eco Enzyme and EM1. Artificial river water samples were made using glucose and kaolin solutions, and water quality was measured using the closed reflux method for COD, the gravimetric method for TSS, and pH measurements. Conclusion, significance and impact study: The results showed that all variations of mudballs were able to reduce COD and TSS values, but only the variation with a combination of Eco Enzyme and EM1 showed the most significant reduction in COD even though it had not reached the quality standard according to Government Regulation No. 22 of 2021. This variation was also effective in removing 100% TSS, and all variations managed to maintain the pH value within a safe range (6-9). The conclusion of this study is that the combination of Eco Enzyme and EM1 in mudballs provides the best results in improving river water quality, especially in TSS removal. However, further optimization is needed to remove COD to meet water quality standards.
Efektivitas Biourine Kuda Diperkaya Dengan Pupuk Hayati Pada Pertumbuhan Tanaman Pakcoy (Brassica rapa L.) Supandi, Gurnita Abi; Annisa Yuliawati; Ahmad Mulyadi; Yusuf Ibrahim; Mimi Halimah
Biosfer : Jurnal Biologi dan Pendidikan Biologi Vol. 8 No. 2 (2023): BIOSFER: Jurnal Biologi dan Pendidikan Biologi
Publisher : Program Studi Pendidikan Biologi, FKIP Unpas,

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/biosfer.v8i2.11189

Abstract

Tanaman pakcoy adalah salahsatu komoditas sayuran yang cukup banyak digemari oleh masyarakat, terutama di kalangan menengah ke bawah. Selain harganya terjangkau, juga memiliki cita rasa yang lezat juga dapat diolah dalam berbagai hidangan. Penelitian ini bertujuan untuk mengetahui efektivitas biourin kuda diperkaya dengan pupuk hayati pada pertumbuhan tanaman pakcoy, sebagai alternatif pupuk organik cair yang dapat digunakan, terutama di lokasi sekitar tempat pemeliharaan kuda. Penelitian ini dilakukan dari bulan Januari sampai Juni 2023 dengan menggunakan desain Rancangan Acak Lengkap (RAL) yang terdiri dari lima perlakuan dan lima pengulangan. Hasil penelitian pemberian perlakuan biourin kuda diperkaya dengan pupuk  hayati  pada pertumbuhan  tanaman pakcoy (Brassica rapa L.)  menunjukkan hasil yang optimal pada konsentrasi 30% untuk parameter tinggi batang serta optimal pada konsentrasi 35% bagi parameter jumlah daun dan bobot tanaman. Pupuk cair organik dari biourin kuda dapat meningkakan bobot tanaman pakcoy pada konsentrasi 30 – 35 %