Mikroorganisme tanah bermanfaat pada rhizosfer tanaman umbi di bawah tegakan hutan rakyat Sulawesi Selatan

Prayudyaningsih, Retno

doi:10.13057/psnmbi/m010453

Cited by 7 publications

(5 citation statements)

References 0 publications

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“…This shows that each plant rhizosphere has a different response to the bacterial population density. According to Prayudyaningsih [20] the population of microorganisms in the rhizosphere is more numerous and more diverse than the non-rhizosphere soil. Furthermore, it was also explained that the activity of rhizosphere microorganisms was strongly influenced by the exudate produced by plant roots.…”

Section: Bacterial Population Densitymentioning

confidence: 99%

Population of Rhizosphere Bacteria on Several Species of Crops In The Tailings of Ex-Gold Mine

Ekyastuti

Astiani

Roslinda

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Tailings of ex-gold mines leave several environmental damage problems. Environmental damage causes disruption of microorganisms including bacteria. The revegetation of ex-gold mine tailings in Menjalin sub-district, Landak district, West Kalimantan has begun by local communities using agricultural crops. Women as farmers have an important role in the tailing revegetation process using agricultural crops. Therefore, women can help improve the tailings ecosystem as well as the family economy. The objective of the study was to detect the presence and density of bacterial populations in the rhizosphere of the revegetation crops. The research was conducted by survey method. Soil samples were taken compositely from the rhizosphere of four species of agricultural crops cultivated in tailings, i.e: Capsicum frutescens L., Solanum melongena, Ipomoea batatas L., and Manihot utilissima. The results showed that soil bacteria found growing well in the rhizospheres of four species crops. Two genera of bacteria were found in the tailing rhizosphere of ex-gold mine in Menjalin sub-district, namely Azotobacter and Pseudomonas. The bacterial population density in the rhizosphere of M. utilissima was significantly the highest. Meanwhile, the bacterial population density in the rhizosphere of C. frutescens, I. batatas, and S. melongena did not differ in the medium category. Further investigation found that the bacterial population in the rhizosphere of M. utilissima was 126.8 – 217 times denser than the other three crop species.

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Section: Bacterial Population Densitymentioning

confidence: 99%

Population of Rhizosphere Bacteria on Several Species of Crops In The Tailings of Ex-Gold Mine

Ekyastuti

Astiani

Roslinda

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Beberapa genus bakteri jumlahnya melimpah di daerah rhizosfer antara lain Pseudomonas, Azotobacter dan Bacillus (Mukamto dkk, 2015). Contohnya Azotobacter dapat ditemukan dengan kepadatan 8.3 x 10⁵ cfu per gram tanah (Prayudyaningsih, Nursyamsi. & Sari, 2015).…”

Section: Pendahuluanunclassified

Keragaman Morfologi Bakteri Penambat Nitrogen Dan Pelarut Fosfat Dari Berbagai Lingkungan Agroekosistem Di Kabupaten Takalar

Sangkala¹,

Bakhtiar²,

Syam’un³

2021

jbiotek

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Penelitian deskriptif ini bertujuan untuk mengetahui keragaman morfologi bakteri penambat Nitrogen dan bakteri pelarut Fosfat dari berbagai lingkungan agroekosistem di Kabupaten Takalar.Penelitian dilaksanakan dari September 2018 sampai April 2019. Sampel tanah diperoleh dari lahan di Kecamatan Galesong Selatan, Kabupaten Takalar yaitu lahan kering, lahan sawah irigasi teknis dan lahan pertanaman cabai. Isolasi dan karakterisasi morfologi

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“…Rhizobakteria merupakan kelompok bakteri tanah yang berkoloni di daerah rhizosfer (perakaran tanaman) dan mampu mendukung pertumbuhan tanaman, hal tersebut disebabkan pada daerah rhizosfer banyak mengandung nutrisi yang merupakan berbagai jenis eksudat dari tanaman, seperti asam amino, gula, menyediakan sumber energi yang kaya dan nutrisi bagi bakteri. Populasi BPF di daerah rhizosfer mencapai 10-100 kali lebih banyak dibandingkan daerah nonrhizosfer karena rhizosfer mengekskresikan bahan organik yang dapat mencukupi dan merangsang pertumbuhan bakteri [5] [6].…”

Section: Pendahuluanunclassified

Potensi Rhizobakteri Sebagai Pelarut Fosfat

Sugianto¹,

Shovitri²,

Wang³

2019

JSSITS

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Fosfat merupakan unsur kedua yang penting setelah nitrogen. Ketersediaan fosfat anorganik dalam tanah rendah, karena berikatan dengan Fe, Al dan Ca membentuk senyawa organik, sehingga fosfat tidak dapat diserap oleh tanaman. Rhizobakteria merupakan bakteri yang hidup di daerah rhizosfer tanah. Beberapa anggota rhizobakteria memiliki kemampuan untuk melarutkan fosfat. Tujuan dari penelitian ini adalah untuk mendapatkan bakteri rhizosfer yang mampu melarutkan fosfat dengan menggunakan metode deteksi kualitatif. Pada penelitian ini didapatkan isolat murni yang telah dipurifikasi dari hasil isolasi tanah rhizosfer. Terdapat lima isolat yang mampu hidup bersinergis dan isolat P1, P2, P8 dan P9 berpotensi sebagai pelarut fosfat.

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Mikroorganisme tanah bermanfaat pada rhizosfer tanaman umbi di bawah tegakan hutan rakyat Sulawesi Selatan

Cited by 7 publications

References 0 publications

Population of Rhizosphere Bacteria on Several Species of Crops In The Tailings of Ex-Gold Mine

Population of Rhizosphere Bacteria on Several Species of Crops In The Tailings of Ex-Gold Mine

Keragaman Morfologi Bakteri Penambat Nitrogen Dan Pelarut Fosfat Dari Berbagai Lingkungan Agroekosistem Di Kabupaten Takalar

Potensi Rhizobakteri Sebagai Pelarut Fosfat

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