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Potensi Mikoriza Vesikular Arbuskular (MVA) sebagai Biofertilizer pada Tanaman Jagung (Zea mays) Febriyantiningrum, Kuntum; Oktafitria, Dwi; Nurfitria, Nia; Jadid, Nurul; Hidayati, Dewi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 6, No 1 (2021): February 2021
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v6i1.4131

Abstract

Mining activities can cause environmental damage, and needs land rehabilitation efforts. One approach to land rehabilitation after mine is with repairing the ecosystem condition by improving the quality of the soil, with increase fertility and enriching soil nutrient content by providing a biofertilizer from microbe, such as mycorrhizal fungi.  This study aims to determine the potential use of vesicular arbuscular mycorrhizal fungus (MVA) as a biofertilizer by examining the effect of MVA on the growth of corn plant (Zea Mays). Applicated indigenus MVA was able to increase the absorption of phosphorus (P) nutrients in the soil by corn plant so it had an effect on increasing the height and diameter of the corn plant stalks. MVA has the potential as a basic material for making biofertilizer, so it can be used to improve soil quality and environment in ex-limestone mining areas.  
POTENSI EKOLOGI SEMUT (FORMICIDAE) DI KAWASAN TAMBANG MINYAK BUMI TRADISIONAL WONOCOLO Oktafitria, Dwi; Laily Agustina Rahmawati
Binar – Biology Natural Resources Journal Vol 3 No 2 (2025)
Publisher : Prodi Biologi Universitas PGRI Ronggolawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55719/binar.v3i2.1527

Abstract

This study aims to identify and analyse the ecological potential of ant species from the Formicidae family in the traditional petroleum mining area of Wonocolo, Bojonegoro Regency. This is important to do because the characteristics of traditional petroleum mining areas generally have simple methods and without adequate security, so the risk of pollution will result in a decrease in ant diversity as animals that live in the soil. This study was conducted descriptively by randomly determining 3 locations in the Wonocolo traditional petroleum mining area with a high density of wells. Then, ant samples were collected using the handsorting method and morphological identification was carried out to determine species names. Seven ant species were identified, namely Camponotus pennsylvanicus (black carpenter ant), Crematogaster claudiae (cocktail ant), Lasius niger (black garden ant), Linepithema sp (Argentine ant), Monomorium sp (pharaoh ant), Nylanderia pubens (carbuncle crazy ant) and Plagiolepis sp (small yellow ant). The ecological potential of each ant is also recognised as indicators of environmental health; as pest controllers; as decomposers; as part of symbiotic interactions; and as soil diggers to alter soil structure.
Keragaman Hymenoptera di Lahan Reklamasi Sistem Teknologi Modifikasi Terasering di Lahan Bekas Penambangan Batu Kapur Ardianita, Nia; Oktafitria, Dwi; Rahmawati, Annisa; Purnomo, Eko
Bioma : Jurnal Biologi dan Pembelajaran Biologi Vol. 9 No. 1 (2024): BIOMA: JURNAL BIOLOGI DAN PEMBELAJARAN BIOLOGI
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/bioma.v9i1.1012

Abstract

ABSTRAK Salah satu upaya reklamasi lahan bekas tambang kapur yang terencana telah dilakukan PT Semen Indonesia Persero (Tbk) dengan menggunakan teknik sistem teknologi modifikasi terasering sejak tahun 2018. Tujuan penelitian ini untuk mengetahui keragaman hymenoptera di lahan bekas tambang batu kapur pada sistem teknologi modifikasi terasering dan mengetahui fungsi ekologisnya. Metode Pittfall trap dilakukan untuk pengambilan sampel dan perhitungan data menggunakan indeks ekologi Shannon Wiener. Hasil penelitian diketahui terdapat 31 individu yang terbagi atas 4 genus, dan 4 spesies. Empat spesies hymenoptera yang didapatkan yaitu Solenopsis invicta, Tetramorium bicarinatum, Monomorium pharaonis, Camponotus pennsylvanicus sedangkan nilai H’ =1.39 (kategori keanekaragaman sedang); nilai C = 0.30; dan J = 0.71. Didapatkan bahwa Tetramorium bicarinatum memiliki jumlah individu tertinggi yaitu sebesar 18 ekor dengan fungsi ekologisnya sebagai soil engineer yaitu berperan dalam merombak material organik yang berfungsi untuk membantu meningkatkan kesuburan tanah pada lahan reklamasi yang mempunyai sifat tanah rusak dan kering akibat penambangan.