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All Journal Agrifor : Jurnal Ilmu Pertanian dan Kehutanan ZIRAA'AH MAJALAH ILMIAH PERTANIAN
Tutik Nugrahini
Fakultas Pertanian Universitas Widya Gama Mahakam Samarinda
Agriculture, Biological Sciences & Forestry

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IDENTIFIKASI MIKROBA AGENS HAYATI PADA LAHAN KELAPA SAWIT (Elaeis jackuenensis Jack.) BELUM MENGHASILKAN DI KECAMATAN MARANG KAYU - KUTAI KARTANEGARA Purwati Purwati; Tutik Nugrahini; Rustam Baraq Noor
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 21, No 1 (2022): Maret 2022
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/agrifor.v21i1.5936

Abstract

Penyerapan dan ketersediaan unsur hara dapat ditingkatkan dengan adanya mikroorganisme tanah.. Lahan perkebunan kelapa sawit umumnya diusahakan pada lahan marjinal dan keragaman populasi mikroba tanah yang rendah. Tujuan penelitian untuk mengidentifikasi mikroba agens hayati pada lahan kelapa sawit belum menghasilkan di Kecamatan Marang Kayu, Kutai Kartanegara. Pengambilan sampel tanah berlokasi di perkebunan kelapa sawit belum menghasilkan milik rakyat di Kecamatan Marang Kayu, Kutai Kartanegara dan proses identifikasi (penghitungan dan isolasi) mikroorganisme di Laboratorium Hama dan Penyakit Tanaman Fakultas Pertanian Universitas Mulawarman. Metode penelitian ini meliputi dua metode meliputi penghitungan jumlah mikroorganisme tanah dan isolasi mikroorganisme tanah. Hasil penelitian menunjukkan mikroba yang terdapat pada lahan kelapa sawit belum menghasilkan yang berpotensi sebagai agens hayati yaitu jamur Trichoderma.
Respon Tanaman Bawang Merah (Allium ascolonicum L. ) Varietas Tuk Tuk Terhadap Pengaturan Jarak Tanam dan Konsentrasi Pupuk Organik Cair Nasa Tutik Nugrahini
ZIRAA'AH MAJALAH ILMIAH PERTANIAN Vol 36, No 1 (2013)
Publisher : Pusat Publikasi Jurnal Universitas Islam Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/zmip.v36i1.27

Abstract

The research objectives are to: (1) study the response of the red onion upon the plant spacing and application of Nasa liquid organic fertilizer (POC) concentrations and their interactions, and (2) to obtain the proper plant spacing and Nasa POC concentration for red onion crop.  The study was conducted from May to September 2011 start of preparation, data collection, analysis and report writing.  Research site is in the South Sempaja Urban village, Sub district of North Samarinda, Samarinda.   Completely Randomized Block Design was applied for this study, using 4 x 4 factorial pattern with 3 replications.  The first factor was the plant spacing (J) consists of: 10cm x 15cm (j1), 15cm x 15cm (j2), 15cm x 20cm (j3), and 20cm x 20cm (j4).  The second factor was the Nasa POC (P) consists of: no POC Nasa application or 0 ml l-1 water (p0) , 1 ml l-1 water (p1), 2 ml l-1 water (p2), and 3 ml l-1 water 1 (p3).  Analysis of the data using analysis of variance, when the results were significantly different (F count > F table 5%) or very significant (F count > F table 1%), then to compare the two treatments used the least significant difference test at level of 5%.  The results showed that: (1) the responses of plant height at age 20 and 60 days after planting, the number of leaves at age of 40 and 60 days after planting, and tuber production are significantly different to highly significant upon the plant spacing.  The highest tuber production was attained at plant spacing of 10cm x 15cm (j1), with 11.72 Mg ha-1; (2) responses of plant height at age 20, 40 and 60 days after planting, the number of leaves at age 20, 40 and 60 days after planting, the number of tillers at the age of 40 and 60 days after planting, tuber weight per plot, and the production of tubers are significantly different upon the Nasa POC concentration.  The highest tuber production was attained at Nasa POC treatment with concentrations of 3 ml l-1 water (k4), with 9.12 Mg ha-1, and (3) there is no interaction between the plant spacing and Nasa POC concentration on all parameters observed.
JAMUR Mycosphaerella musicola PATOGEN BERCAK DAUN PADA PISANG RUTAI (Musa borneensis) Iin Arseni; Tutik Nugrahini
ZIRAA'AH MAJALAH ILMIAH PERTANIAN Vol 41, No 2 (2016): TERBITAN TERBARU JUNI 2016
Publisher : Pusat Publikasi Jurnal Universitas Islam Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/zmip.v41i2.432

Abstract

Although bananas grown in almost all developing countries in the world, there is rarely a research on bananas.  Though the prospect of bananas in Indonesia is enormous, both for domestic consumption and for export.  It is unfortunate that the current area of development of banana cultivation has declined because of the disease, include leaf spot.Until now, information about leaf spot fungus pathogens that cause disease on Rutai banana plants still lacking.This research aims to determine the fungal pathogens of leaf spot on Rutai banana plants.Research conducted in the laboratory of Pests and Diseases of the Faculty of Agriculture, University of Widyagama Mahakam Samarinda.The results showed that: (1) leaf spot disease that were found in Rutai banana plants caused by a group of fungi; and (2) identification of pathogenic fungi on the leaf spot was Mycosphaerella musicola and it had potential as leaf spot pathogen on Rutai banana plants.
Co-Authors Iin Arseni Purwati Purwati Rustam Baraq Noor