Ginger (Zingiber officinale) is a type of medicinal plant belonging to the Zingiberaceae family. Increasing the growth of ginger rhizome can be done by using natural growth regulators. Coconut water is a source of natural growth regulators. Different coconut varieties are thought to have different compositions of biochemical compounds, including growth regulators contained in coconut water. The…
ajah Sumatera termasuk hewan yang masuk kedalam kategori terancam punah atau Critically Endangered (CR) Upaya pelestarian gajah terus dilakukan oleh pemerintah, salah satu cara yaitu dengan pembangunan Pusat Latihan Gajah Jalur 21 di Suaka Margasatwa Padang Sugihan. Permasalahan yang sering dialami oleh gajah pada wilayah konservasi yaitu permasalahan kesehatan, salah satunya infeksi endoparasi…
Oil palm empty fruit bunches (EFBF) waste is a waste that takes a long time to degrade, this is due to the high cellulose content in EFB waste. Cellulose is a hydrolyzed polysaccharide to produce cellobiose and glucose monomers. Cellulase can be produced by plants, yeast, bacteria and cellulolytic fungi. Fungi have the ability to decompose cellulose found in dead plant tissues into simpler comp…
Pertambangan batubara di Indonesia banyak dilakukan secara terbuka(surface mining). Penambangan batubara yang dilakukan secara terbuka akanmelepaskan asam sulfat dan mendorong terjadinya oksidasi mineral sulfida.Proses ini selanjutnya akan menghasilkan limbah berupa air asam tambang (AAT) dan mengakibatkan tingginya akumulasi logam berat pada tanah dan air. Air asamtambang (AAT) memiliki nilai …
Most of society depends on the use of plastic as packaging material. The material most commonly used as a constituent of plastics comes from PET (Polyethylene terephthalate). Dependence on PET-based plastics causes a high increase in landfills due to non-degradability materials. PET can be degraded by physicals and chemicals method, but those methods raise the problem of secondary environmental…
Palembang City is a growing city, so there is a lot of increased activity in the city. One of the centers of community activity is the road, because roads connect land transportation, causing pollution. Jalan Demang Lebar Daun is one of the streets in the city of Palembang which is busy with activity because it is in the middle of the city. Human activity on the road can increase the amount of …
Butterfly pea flower (Clitoria ternatea L.) is used as a natural dye and herbal medicine because it contains metabolites. The content of these metabolites is influenced by the phase of flower development. This study aims to determine the abundance of metabolites, anthocyanin levels, and antioxidant levels in butterfly pea flowers based on the flowering phase with a non-targeted metabolomics app…
The bintaro plant (Cerbera manghas L.) is a poisonous plant of the Apocynaceae family that has potential as an anticancer agent because it contains secondary metabolite compounds that show cytotoxic activity which can be known based on the level of toxicity. This study aims to determine the acute toxicity of n-hexane extract, ethyl acetate extract, and methanol extract of bintaro fruit on the m…
PT Sumatera Prima Fibreboard is a private company engaged in the industry that produces MDF wood. PT SPF created a greening area in several locations in the factory environment as an effort to reduce air pollution, especially CO2 gas due to MDF production activities. Trees planted in greening areas have an important role to be able to clean the air and as a habitat for various other organisms s…
This study aims to determine the effect of STEM-based learning on water cycle material on the topic of the flood phenomenon for the system thinking ability of junior high school students. The population of this study were all students of class VII of SMPN 57 Palembang. Determination of the sample using Random Sampling technique so that class VII.1 was selected as the experimental class and VII.…
Research has been conducted on the antibacterial power of Sungkai leaf extract (Peronema canescens Jack.) against Pseudomonas aeruginosa bacteria. This study aims to obtain information on the effect of the ethanol extract of Sungkai leaves (P. canescens) on P. aeruginosa bacteria and the minimum inhibitory concentration (MIC) of the ethanol extract of Sungkai leaves (P. canescens) on P. aerugin…
Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning (PBL) berbantuan E-Modul terhadap motivasi dan hasil belajar peserta didik pada materi sistem pencernaan kelas XI SMA. Penelitian dilaksanakan di SMA Negeri 13 Bandar Lampung. Penelitian ini menggunakan Quasi Eksperimen Design dengan Nonequivalent Control Group Design. Penentuan sampel menggunakan tekni…
This study aims to determine the effect of Kimpul taro bokashi (Xanthosoma sagittifolium L.) on the growth of Chives (Allium chinense G. Don) and the best concentration of bokashi. This research was conducted in a green house in the village of Permata Baru, North Indralaya District, Ogan Ilir Regency. The research method used was an experimental method with a completely randomized design (CRD) …
This research aims to develop a discovery-based learning package on the impact of forest and land fires that is valid and practical for student learning. This research uses the ADDIE development model, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. The subjects of this study were students of classes VII 2 and VII 3 at SMP N 6 Indralaya Utara, with …
Penelitian ini bertujuan untuk mengetahui pengaruh Trichoderma sp. terhadap pertumbuhan tanaman selada (Lactuca sativa L.). Metode yang digunakan adalah metode eksperimen dengan Rancangan Acak Lengkap (RAL) yang terdiri dari 5 perlakuan dan 5 ulangan. Perlakuan berupa aplikasi tiga jenis Trichoderma sp. yaitu Trichoderma sp 1, Trichoderma sp 2 dan Trichoderma sp 3 dengan dosis P0 (0 gram), P1 (…
Penelitian ini bertujuan untuk mengetahui bagaimana proses pengambilan keputusan peserta didik terhadap pemodelan kebakaran hutan serta mengetahui apakah ada perubahan dalam pengambilan keputusan antara peserta didik pada saat sebelum melakukan pembelajaran dengan pemodelan alat peraga dengan sesudah menggunakan pemodelan alat peraga. Penelitian ini merupakan penelitian kuantitatif dengan desai…
Penelitian ini bertujuan untuk mengetahui pengaruh lembar kerja peserta didik dalam Model Learning Cycle 7E terhadap kemampuan berpikir tingkat tinggi peserta didik kelas XI SMA pada materi sistem sirkulasi. Penelitian ini dilaksanakan di SMA Negeri 1 Lahat. Penelitian menggunakan Quasi Eksperimen dengan Non-equivalent Control Group Design dengan teknik sampling menggunakan teknik Purposive Sam…
This objective of the research is to find the effect of sugar cane kettle ash bokashi fertilizer on soybean plant growth (Glycine max (L.) Merril) and the optimal concentration of sugar cane kettle ash bokashi fertilizer on soybean growth (Gycine max (L.) Merril). The method used is an experimental method with a completely randomized design (CRD) consisting of six treatments and four replicatio…
The purpose of the study is to know about student's critical thinking skills in the subject of human movement systems after the COVID-19 pandemic in Lahat District. This survey research was conducted using indicators of critical thinking skills. Critical thinking instruments are given to high school students in science class 11st grade. Data were analyzed qualitatively. The results of the study…
Kesalahan peserta didik dalam menafsirkan dan memahami suatu konsep dapat menyebabkan miskonsepsi. Tujuan penelitian ini adalah mengetahui validitas dan reliabilitas instrumen yang dapat mengidentifikasi miskonsepsi peserta didik pada materi sistem endokrin SMA dan mengetahui profil miskonsepsi peserta didik SMA di Kota Palembang. Metode pada penelitian ini adalah metode pengembangan Treagust y…