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Retno Prayudyaningsih
Balai Penelitian Kehutanan Makassar
Agriculture, Biological Sciences & Forestry Education

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Soil Mesofauna Response to Cover Crops and Mycorrhizal Inoculated Plantation on Limestone Quarry Revegetation Retno Prayudyaningsih
Jurnal Wasian Vol 3, No 1 (2016): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v3i1.873

Abstract

Cover crops establishment followed by mycorrhizal inoculated tree plantation accelerate limestone quaryy restoration. Soil mesofauna is a useful indicator for assessing biodiversity recovery, as they are sensitive to human disturbance and involved in ecological processes. In this research, soil mesofauna presence used to evaluate limestone quarry restoration by cover crops and mycorrhizal inoculated tree esatblisment. Soil mesofauna are measured using individual density, species diversity, richness and important value. The study was conducted in four types of areas on limestone postmining lands are open areas/natural conditions without planting, cover crop area, non mycorrhizalinoculated plant area and mycorrhizal-inoculated plant area. The result showed The higher individual density, diversity and species richness of soil mesofauna on cover crops and mycorrhizal inoculated plant area than other areas are indicators of limestone quarry restoration rate. Furthermore the presence of Formicidae family that dominated on cover crops and mycorrhizal inoculated plant area, and emergence of Acari group only on mycorrhizal inoculated area also an indicator of limestone quarry restoration.
Rhizobium: Pemanfaatannya sebagai Bakteri Penambat Nitrogen Ramdana Sari; Retno Prayudyaningsih
Buletin Eboni Vol 12, No 1 (2015): Info Teknis Eboni
Publisher : Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (602.226 KB) | DOI: 10.20886/buleboni.5054

Abstract

Nitrogen adalah unsur yang diperlukan untuk membentuk senyawa penting di dalam sel, di antaranya protein, DNA dan RNA. Kandungan atmosfer sekitar 80% adalah nitrogen (N2), namun tidak ada yang secara langsung dapat digunakan oleh tanaman. Sementara itu, keberadaan dan ketersediaan senyawa nitrogen dalam tanah sangat terbatas, terlebih dari sifat senyawa nitrogen yang mudah hilang (leaching). Untuk itu, pemanfaatan N2 bebas dari udara melalui penambatan (fiksasi) merupakan hal penting untuk meningkatkan ketersediaan nitrogen bagi tanaman. Penambatan nitrogen merupakan proses biokimiawi di dalam tanah yang memainkan salah satu peranan paling penting, yaitu mengubah nitrogen atmosfer (N2, atau nitrogen bebas) menjadi nitrogen dalam persenyawaan/ nitrogen tertambat yang melibatkan peran mikroba tertentu. Bakteri yang mampu mengikat N2 bebas adalah genus Rhizobium, tetapi hanya dapat hidup jika bersimbiosis dengan tanaman dari suku Leguminoceae. Bakteri Rhizobium merupakan mikroba tanah yang mampu mengikat nitrogen bebas di udara menjadi ammonia (NH3) yang akan diubah menjadi asam amino yang selanjutnya menjadi senyawa nitrogen yang diperlukan tanaman untuk tumbuh dan berkembang. Bila unsur N cukup tersedia bagi tanaman maka kandungan klorofil pada daun akan meningkat dan proses fotosintesis juga meningkat sehingga asimilat yang dihasilkan lebih banyak, akibatnya pertumbuhan tanaman lebih baik.
Mikoriza dalam Pengelolaan Hama-Penyakit Terpadu di Persemaian Retno Prayudyaningsih
Buletin Eboni Vol 9, No 1 (2012): Info Teknis Eboni
Publisher : Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (175.49 KB) | DOI: 10.20886/buleboni.4994

Abstract

Fumigasi media, aplikasi bahan organik sebagai campuran media dan pemberian pupuk yang intensif mempunyai risiko dan menimbulkan masalah bagi keberhasilan pertumbuhan semai di persemaian. Selain itu, lambatnya pertumbuhan semai jenis-jenis tertentu, sehingga membutuhkan waktu yang lama di persemaian dan hal tersebut tidak bisa diatasi hanya dengan pemberian pupuk. Kondisi marginal di persemain karena ketersediaan nutrien dalam media dibatasi oleh ukuran tempat dan jumlah media menyebabkan pertumbuhan semai menjadi terhambat. Oleh karena itu, diperlukan suatu upaya yang tidak hanya bertujuan untuk melindungi semai dari serangan patogen, tapi juga dapat meningkatkan pertumbuhan tanaman. Upaya yang dilakukan sebaiknya merupakan tindakan yang ramah lingkungan, sehingga tidak menimbulkan masalah-masalah baru bagi lingkungan. Aplikasi fungi mikoriza di persemaian merupakan salah satu alternatif taktik biologi yang dapat dilakukan untuk mendukung keberhasilan Pengelolaan Terpadu Hama-Penyakit Persemaian (Integrated Nursery Pest Management). Asosiasi mikoriza pada akar semai akan meningkatkan penyerapan dan ketersediaan hara, sehingga dapat meningkatkan pertumbuhan tanaman dan pada akhirnya dapat meningkatkan resistensi tanaman terhadap stres lingkungan, meliputi stres biotik (serangan patogen) dan stres abiotik (kekurangan air, adanya senyawa toksik atau logam berat, dan lain-lain).
Soil Mesofauna Response to Cover Crops and Mycorrhizal Inoculated Plantation on Limestone Quarry Revegetation Retno Prayudyaningsih
Jurnal Wasian Vol 3, No 1 (2016): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (29.263 KB) | DOI: 10.20886/jwas.v3i1.873

Abstract

Cover crops establishment followed by mycorrhizal inoculated tree plantation accelerate limestone quaryy restoration. Soil mesofauna is a useful indicator for assessing biodiversity recovery, as they are sensitive to human disturbance and involved in ecological processes. In this research, soil mesofauna presence used to evaluate limestone quarry restoration by cover crops and mycorrhizal inoculated tree esatblisment. Soil mesofauna are measured using individual density, species diversity, richness and important value. The study was conducted in four types of areas on limestone postmining lands are open areas/natural conditions without planting, cover crop area, non mycorrhizalinoculated plant area and mycorrhizal-inoculated plant area. The result showed The higher individual density, diversity and species richness of soil mesofauna on cover crops and mycorrhizal inoculated plant area than other areas are indicators of limestone quarry restoration rate. Furthermore the presence of Formicidae family that dominated on cover crops and mycorrhizal inoculated plant area, and emergence of Acari group only on mycorrhizal inoculated area also an indicator of limestone quarry restoration.
Pertumbuhan semai Alstonia scholaris, Acacia auriculiformis dan Muntingia calabura yang diinokulasi fungi mikoriza arbuskula pada media tanah bekas tambang kapur Retno Prayudyaningsih
Jurnal Penelitian Kehutanan Wallacea Vol. 3 No. 1 (2014)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.016 KB) | DOI: 10.18330/jwallacea.2014.vol3iss1pp13-23

Abstract

The application of Arbuscular Mycorrhizal Fungi (AMF) is a solution to produce high quality seedlings. Seedlings inoculated by AMF has high survival rate, especially on extreme land condition such as post mining limestone. Alstonia scholaris, Acacia auriculiformis and Muntingia calabura are tolerant plants species to alkaline and poor soils such as post mining limestone. The research was conducted to determine the effect of inoculation of indigenous AMF from post mining limestone on the seedling growth A. scholaris, A. auriculiformis and M. calabura. A complete randomized design with five treatments of AMF types (Acaulospora sp., Gigaspora sp., mix of Acaulospora sp. and Gigaspora sp., Glomus sp. and non AMF inoculation) was applied. The results showed that inoculated seedlings with indigenous AMF had higher growth response than non inoculated seedlings of A. scholaris, A. auriculiformis and M. calabura. Indigenous AMF inoculation improved height and stem diameter growth, biomass and quality index of seedlings as well as P uptake. The best increment growth is shown by A. auriculiformis seedling after inoculating with Acaulospora sp. and mix of Acaulospora sp. and Gigaspora sp, while inoculation with Acaulospora sp. gave the best increment on seedling growth of A. scholaris and M. calabura.
Diversity of Tuber Crops and Arbuscular Mycorrhizae Fungi (Amf) Under Community Forest Stand in South Sulawesi Retno Prayudyaningsih; Nursyamsi
Jurnal Penelitian Kehutanan Wallacea Vol. 4 No. 1 (2015)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1246.526 KB) | DOI: 10.18330/jwallacea.2015.vol4iss1pp81-92

Abstract

Implementation of agroforestry system in community forest that incorporate local species Vitex cofassus (bitti), Toona sinensis (suren), Tectona grandis (teak) and Aleurites moluccana (candlenut) with seasonal crops such as tuber crops would create opportunities for local people to improve the economic and food security. Tuber crops as the understory could be expected to reduce the rate of soil erosion and expand habitat of beneficia soil microorganisms such as arbuscular mycorrhizal fungi (AMF). The research aims to determine the diversity of tuber crops and AMF in the rhizosphere of tuber crops grown under community forest stands of bitti, suren, teak and candlelnut in South Sulawesi. Results showed that (1) there are 12 kinds of tuber crops that grow under community forest stands in which the 7 types are as alternative food sources, (2) Amorphophallus campanulatus (iles-iles/suweg) and Xanthosoma violaceum (kimpul) are species of tuber crops that is found growing under all of the commnunity forest stands, (3) all kinds of tuber crops that grow under the community forest stand associated with AMF, in which there are 3 AMF genus i.e Glomus sp. Acaulospora sp. and Gigaspora sp.with low spore density.
Co-Authors Nursyamsi Ramdana Sari