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LALU ZULKIFLI
STMIK AMIKOM Yogyakarta
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Effect of NPK Fertilizer and Liquid Organic Fertilizer Lamtoro Leaves (Leucaena leucocephala spp. leucocephala) on The Growth of Cayenne Peppers (Capsicum frutescens L.) Sofian, M.; Raksun, Ahmad; Handayani, Baiq Sri; Zulkifli, Lalu
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-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.v25i3.10031

Abstract

One of the many advantages of lamtoro is that, due to its high nutrient content, it may be utilized as organic fertilizer. Utilizing POC can help plants meet their nutritional needs and avoid nutrient shortages. The purpose of this study is to ascertain how applying NPK fertilizer and liquid organic fertilizer derived from lamtoro leaves, both independently and together, affects the growth of chili plants. Five treatments using NPK fertilizer and liquid organic fertilizer derived from lamtoro leaves were employed in this study, which employed a completely randomized design with three replications. The impact of treatments on the growth metrics of cayenne pepper plants was assessed using a two-way anova test. The results showed that the application of liquid organic fertilizer (POC) derived from lamtoro leaves had a substantial effect on the number of leaves, leaf area, fresh weight, and dry weight. When NPK fertilizer was applied, plant height, leaf count, leaf area, fresh weight, and dry weight all increased. The application of a mixture of liquid organic fertilizer derived from lamtoro leaves and NPK fertilizer did not significantly affect the cayenne pepper plants' fresh weight, dry weight, number of leaves, leaf area, or plant height.  
Vegetative Growth Analysis of Long Beans (Vigna sinensis L.) After Bokashi and NPK Fertilizer Treatment Raksun, Ahmad; Zulkifli, Lalu; Mertha, I Wayan; Santoso, Didik; Ilhamdi, Moh Liwa
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10103

Abstract

Long beans (Vigna sinensis L.)  require sufficient nutrients for their growth. To increase nutrients, fertilization needs to be carried out using either chemical fertilizers or organic fertilizers. Bokashi is an organic fertilizer that can be applied to agricultural land. Research on the analysis of vegetative growth of Vigna sinensis L due to bokashi and NPK fertilizer treatments has been conducted with the aim of analyzing the effect of bokashi, NPK fertilizer, and the interaction of the two treatments on the vegetative growth of Vigna sinensis L. In this study, a completely randomized design with 2 factors was used. Long bean  growth parameter including number of leaves, leaf length, leaf width and stem length were analyzed using analysis of variance. The results of the study showed that there was an increase in the number of leaves, stem length and leaf length but there was no increase in leaf width after bokashi treatment. NPK fertilizer treatment can increase all growth parameters, The interaction between bokashi and NPK fertilizer did not have a significant effect on the growth parameters of  Vigna sinensis L. Farmers are recommended to use 16 tons of bokashi for 1 hectare of agricultural land combined with 1.5 g of NPK fertilizer for 1 long bean.
Pengaruh Metode Jelajah Alam Sekitar Terhadap Hasil Belajar Kognitif Pada Materi Interaksi Makhluk Hidup Dengan Lingkungannya Siswa Kelas VII SMP Negeri 21 Mataram Arista, Ovie; Zulkifli, Lalu; Handayani, Baiq. Sri
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 5 No. 4 (2024): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v5i4.485

Abstract

Metode jelajah alam sekitar yang dalam proses penerapannya mengajak siswa untuk melihat secara langsung bagaimana interaksi dapat terjadi antara makhluk hidup dengan lainnya dan lingkungannya. Tujuan penelitian ini yaitu untuk mengetahui pengaruh metode Jelajah Alam Sekitar terhadap hasil belajar hasil belajar kognitif pada materi interaksi makhluk hidup dengan lingkungannya siswa kelas VII SMP Negeri 21 Mataram. Penelitian ini menggunakan metode eksperimen semu (quasi-experiment). Desain penelitian yang digunakan adalah pretest-posttest non-equivalent control group design. Hasil rata-rata pre-test kelas eksperimen 66,75 dan nilai post-test 95,75. Kelas kontrol nilai pre-test yaitu 62,35 dan nilai post-test 81,25. Data statistik dianalisis dengan menggunakan teknik Paired samples T-Test atau uji t. Hasil uji t menunjukkan nilai sig (2-tailed) 0,00 < 0,05. Hasil penelitian menunjukkan bahwa metode jelajah alam sekitar memiliki pengaruh yang signifikan terhadap peningkatan kemampuan hasil belajar kognitif siswa kelas VII SMP Neegeri 21 Mataram.
Perbandingan Hasil Belajar Siswa Melalui Penggunaan Model Pembelajaran Discovery Learning dengan Model Pembelajaran Kooperatif Tipe Snowball Throwing pada Mata Pelajaran IPA Biologi Kelas VIII SMPN 11 Mataram Rusyda, Mentari Tatsbita; Zulkifli, Lalu; Merta, I Wayan
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 5 No. 4 (2024): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v5i4.514

Abstract

Tujuan penelitian ini adalah untuk mengetahui Perbandingan Hasil Belajar Siswa Melalui Penggunaan Model Pembelajaran Discovery Learning dengan model pembelajaran kooperatif tipe Snowball Throwing pada mata pelajaran IPA biologi kelas VIII SMPN 11 Mataram. Penelitian ini menggunakan metode kuantitatif dengan desain komparatif. Populasi dari penelitian ini adalah 58 siswa yang terdiri dari 29 siswa kelas eksperimen I dan 29 siswa kelas eksperimen II yang diperoleh dengan teknik purposive sampling pada siswa kelas VIII SMPN 11 Mataram. Instrumen penelitian yang digunakan adalah tes hasil belajar IPA biologi yang berjumlah 24 butir soal bentuk pilihan ganda. Teknik analisis data yang digunakan dalam penelitian ini adalah uji T sampel independen, dan berdasarkan hasil perhitungan uji T independen diperoleh thitung 2.0794 dan ttabel 2.0032 dengan dk = 56 dan α = 0,05. Berdasarkan hal tersebut, dapat disimpulkan bahwa thitung>ttabel maka terdapat perbedaan hasil belajar IPA biologi yang menggunakan model pembelajaran Discovery Learning dengan model pembelajaran kooperatif tipe Snowball Throwing. Dari perbedaan itu diketahui nilai rata-rata hasil belajar model pembelajaran Discovery Learning yaitu 77.72 dan model pembelajaran kooperatif tipe Snowball Throwing yaitu 79.43. Sehingga dapat simpulkan bahwa rata-rata hasil belajar IPA biologi siswa yang diajar dengan model pembelajaran kooperatif tipe Snowball Throwing lebih tinggi daripada rata-rata hasil belajar IPA biologi siswa yang diajar dengan model pembelajaran Discovery Learning. Dengan demikian model pembelajaran kooperatif tipe Snowball Throwing lebih efektif dibandingkan dengan model pembelajaran Discovery Learning, sehingga H0 ditolak dan Ha diterima.
Sosialisasi Berbagai Jenis Kupu-Kupu Indah Sebagai Materi Pengayaan Keanekaragaman Hayati di SMPN Sekitar Kawasan Taman Wisata Alam Suranadi Ilhamdi, M. Liwa; Idrus, Agil Al; Santoso, Didik; Zulkifli, Lalu; Mertha, I Wayan
Jurnal Pengabdian Masyarakat Sains Indonesia (Indonesian Journal Of Science Community Services) Vol. 2 No. 2 (2020)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmsi.v2i2.79

Abstract

Pembelajaran materi keanekaragaman hayati yang kontekstual di sekolah sekitar Taman Wisata Alam Suranadi belum dilakukan karena tidak ada buku dan media VCD pembelajaran kontekstual yang menyajikan keanekaragaman hayati di sekitar sekolah. Faktor ini yang menjadi permasalahan utama mitra dan tawaran penyelesaiannya adalah dengan mensosialisasikan keanekaragaman hayati khususnya kupu-kupu yang ada di sekitar sekolah. Pembelajaran yang menyenangkan  berbasis lingkungan sekitar atau CTL (Contextual Teaching and Learning) karena siswa dapat  melihat secara nyata, mengalami sendiri materi pelajaran  yang ada di sekitar lingkungannya.  selanjutnya dengan CTL dapat meningkatkan hasil belajar  Siswa dibelajarkan dengan buku dan VCD yang berisi materi pelajaran yang ada di sekitar siswa. Hasil belajar siswa di SMPN sekitar taman wisata Suranadi masih di bawah standar KKM 75. Metode kegiatan ini adalah sosialisasi dengan penjelasan, penyajian isi buku dan penayangan VCD Pembelajaran, tanya jawab dan diskusi.   Tujuan dari kegiatan  ini untuk mensosialisasikan berbagai jenis kupu-kupu indah sebagai materi pengayaan keanekaragaman hayati di SMPN sekitar kawasan Taman Wisata Alam Suranadi. Setelah selesainya pelaksanaan kegiatan ini juga akan dilaksanakan  pendampingan pembelajaran yang dilakukan guru untuk melaksanakan pembelajaran berbasis lingkungan. Hasil pengabdian sebagai berikut 1) telah dilakukan sosialisasi berbagai jenis kupu-kupu indah sebagai materi pengayaan keanekaragaman hayati di SMPN sekitar kawasan Taman Wisata Alam Suranadi 2) peserta kegiatan pengabdian 100% mengikuti, menanggapi dan memahami materi sosialisasi.  Kesimpulan sosialisasi berbagai jenis kupu-kupu indah sebagai materi pengayaan keanekaragaman hayati di  SMPN sekitar TWA Suranadi dalam kegiatan pengabdian ini terlaksana dengan baik dengan antusiasme peserta kegiatan yang tinggi.Kata Kunci : Sosialisasi, Keanekaragaman hayati, Kupu-kupu, Suranadi
Diversity of Dragonfly in The Segenter Waterfall Ecotourism Area, Lombok Island Ilhamdi, Mohammad Liwa; Al Idrus, Agil; Zulkifli, Lalu; Santoso, Didik; Mertha, I Gde; Madang, Kodri; Alhafizin, M.
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10396

Abstract

Dragonflies are a part of biodiversity that possess aesthetic value due to their colorful appearance, as well as ecological, environmental, ecotourism, and educational significance. Segenter Waterfall in West Lombok has a unique bio-ecological characteristic, as it provides a habitat for various interesting dragonfly species. This can be utilized as an object for ecotourism and a learning resource. The aim of this research was to analyze the diversity of dragonflies in Segenter Waterfall. The method used in this research was a survey method with an area exploration technique following predetermined transect lines based on observation results: the edge path, the middle path, and the watershed path. The sweeping net method was used to collect dragonflies that could not be identified in the field for further observation in the laboratory. The results showed that the highest species abundance was Orthetrum sabina (0.55) and the lowest was Anax guttatus (0.19). Meanwhile, the highest diversity index was found in the water path (2.96) and the lowest in the middle path (2.74). In conclusion, the diversity of dragonfly species varies across each observation path, with the highest order being the Water Path, followed by the Edge Path, and the lowest being the Middle Path in the Segenter Waterfall area, Lombok Island.
The Effect of Organic Fertilizer of Goat Urine and NPK on the Growth of Long Bean Plant (Vigna sinensis L.) Sapril, Dian Islamiaty; Raksun, Ahmad; Zulkifli, Lalu
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6075

Abstract

One of the most popular vegetables is the long bean (Vigna sinensis L.). Due to the presence of Rhizobium bacteria nodules in its roots, long bean plants are considered soil enrichers. Liquid organic fertilizer from goat urine is highly soluble in soil and contains essential nutrients crucial for soil fertility. This study aims to ascertain the best fertilizer dose for plant development as well as the effects of goat urine organic fertilizer, NPK fertilizer, and their combination on the growth of long bean plants (Vigna sinensis L.). A completely randomized design was used to perform the study as an experiment (CRD). With the aid of SPSS for Windows 25, two-way ANOVA was used for data analysis. Post hoc analyses were performed using DMRT and were allowed if the p-value (sig) was less than 0.05 or if the computed F value was greater than the tabular F value. The combination of goat urine organic fertilizer (POC) and NPK fertilizer did not substantially alter the development of long bean plants, according to the findings of the ANOVA study on the plant height parameter. Significant variations were seen, nonetheless, for other metrics as chlorophyll content, wet and dry weights, leaf area, and number of leaves. At the 5% significance level, the impact of treatments on plant height metrics showed that either the alternative hypothesis, H1, or the null hypothesis, H0, was accepted. Thus, it can be said that there is a strong interaction between the growth of long bean plants and the combination of NPK fertilizer and goat urine organic fertilizer (POC).
Molecular Characterization of Neem Rhizosphere Bacteria as A Nitrogen Fixer Isolated from The Dry Land of East Lombok Umami, Rizal; Zulkifli, Lalu; Bahri, Syamsul; Mahrus; Sedijani, Prapti
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
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.v23i2.6122

Abstract

Bacteria have an important role in providing essential nutrients for plants in dry land through various beneficial working mechanisms. One of the main mechanisms is the involvement of bacteria in nutrient cycles, such as the nitrogen cycle. The aim of this research was to determine the type and ability of bacteria in the rhizosphere of neem (Azadirachta indica) to fix nitrogen. The method used in this research is an exploratory descriptive type. The results of the isolation carried out from the rhizosphere of neem (Azadirachta indica) taken from the East Lombok area of Jerowaru sub-district, 5 samples were obtained with the code LO, where 2 isolates had the ability to fix nitrogen, namely LO3 and LO4. This is proven by using NFB media where there is a change in the color of the media from green to blue, and quantitatively using a spectrophotometer with results of 1,112 ppm and 2,156 ppm, respectively. The results of the molecular identification of the potential bacteria, namely LO4, using the BLAST method at the GenBank data base (NCBI), show that LO4 is the closest relationship to the species Lysinibacillus fusiformis strain SMC303. The results above show that rhizobacteria isolated from neem have the potential to be developed as a biofertilizer that can be applied to future cultivated plants.
Isolation and Identification of Phosphate Solubilizing Bacteria from The Rhizosphere of Dry Land Lamtoro Plants (Leucaena leucocephala) in North and South Lombok Regions Hartanto, Priyo; Zulkifli, Lalu; Karnan; Sedijani, Prapti; Mahrus
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
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.v23i2.6127

Abstract

Phosphate solubilizing rhizobacteria are microorganisms that live in the rhizosphere of plants and have the ability to increase the availability of phosphate in the soil, thereby reducing dependence on chemical fertilizers which are harmful to the environment. This research aims to isolate rhizosphere bacteria from Lamtoro plants and test their ability to dissolve phosphate. Screening the ability of these bacterial isolates was carried out using Pikovskaya media and quantitatively using a spectrophotometer. The test results showed that there were 3 isolates, namely KLU13, A2 and KLS1, which had IKF values in the medium category. Meanwhile, the other 4 isolates had abilities in the low category (isolates A1, A31BK, A3BB and A3). The results of quantitative tests with a spectrophotometer showed that there was an increase in dissolved phosphate from day 2 to day 6. Isolates KLU13, A3 and KLS1 dissolved the highest phosphate on day 6 with values of 14.65 ppm, 14.81 ppm and 10.32 ppm respectively. It can be concluded that the isolate obtained from the Lamtoro rhizosphere which grows in the dry areas of Lombok Island has the potential to be developed as a biofertilizer in the future.
Test The Effect of The Inhibitory Power and Minimum Killing Power of Clove Flower Oil (Syzigum aromaticum) with Water as a Solvent Against Staphylococcus aureus Putra, Hendra Susana; Mahrus; Sedijani, Prapti; Al Idrus, Agil; Zulkifli, Lalu
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i1.6188

Abstract

Excessive use of antibiotics in treating infectious diseases has caused some bacteria to become resistant. Therefore, it is hoped that the use of natural ingredients such as cloves can be an alternative solution in reducing excessive use of antibiotics. This study aims to test the inhibitory effect and minimum killing power of clove flower oil (Aromatic syzygum) with water as a solvent against Staphylococcus aureus. In determining the inhibition zone, the diffusion disk method was used. Meanwhile, determining the Minimum Kill Ability (MKA) uses the liquid tube dilution method. The results showed that an increase in the concentration of clove flower extract was followed by an increase in the inhibition zone in the media with the isolate Staphylococcus aureus. Meanwhile, in measuring the Minimum Kill Ability, the results showed that the MKA value of clove leaf extract against bacteria Staphylococcus aureus smaller than 5%. This shows that only a 5% concentration of clove leaf extract is enough to inhibit growth Staphylococcus aureus. These findings indicate the potential of clove leaf extract as an antimicrobial agent for bacteria Staphylococcus aureus. So it is hoped that natural ingredients will be able to reduce excessive use of antibiotics.
Co-Authors Abdul Syukur Agil Al Idrus Agil Al Idrus, Agil Al Agus Ramdani Ahmad Raksun, Ahmad Alhafizin, M. Apriana, Mila Arianti, Septia Ayu Citra Rasmi, Dewa Baiq Sri Handayani Cahyadi Wirajagat, Gde Darmawan, Rizky Ferdyanto Dianam Didik Santoso Dwi Soelistya Dyah Jekti Fadilla Yuliana, Baiq Fitriani, Iwan H. Mahrus Handayani, Baiq. Sri Hariadi, Ismawan Hidayati, Siti Nur Isnaini I Gde Mertha I Wayan Merta I Wayan Mertha Ilhamdi, M. Liwa Ilhamdi, Moh Liwa Ilhamdi, Mohammad Liwa Karnan Karnan Kodri Madang, Kodri Lalu Japa, Lalu Mahrus Mahrus Mahrus, Mahrus Muhammad Zaki Musaddat, Syaiful Nabila, Elva Elvina Ni Luh Putu Pebri Artayani . NINING INTAN TOHARAH, NINING INTAN Nurikhsanti, Mikiyal Ovie Arista Paspania, Karima PRAPTI SEDIJANI, PRAPTI Priyo Hartanto Putra, Hendra Susana Raden Mohamad Herdian Bhakti Rasmi, Dewa Ayu Citra Rizki, Risa Mar’ussifa Robi'atul Adawiyah, Marosa Rusyda, Mentari Tatsbita Sakaroni, Rubiyatna Sapril, Dian Islamiaty Sari, Neti Kumala Sofian, M. Syamsul Bahri Syauki MS, Lalu Syauki, Lalu UMAMI, RIZAL Utami, Febrisa Indri Utami, Ni Wayan Anggun Diah Wardana, Lalu Ali Winata, I Gede Darma Wirajagat , Cahyadi Zanaria