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All Journal AGROEKOTEKNOLOGI JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Ilmu-Ilmu Pertanian Indonesia TERRA : Journal of Land Restoration JMM (Jurnal Masyarakat Mandiri) Martabe : Jurnal Pengabdian Kepada Masyarakat
Kartika Utami
Program Studi Ilmu Tanah, Fakultas Pertanian, Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Arts Humanities Education Environmental Science Social Sciences Other

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Evaluasi Sifat Fisik Tanah Terhadap Laju Infeksi Ganoderma di Perkebunan Kelapa Sawit (Studi Kasus : PT. PD. PATI) Kartika Utami; Supriadi Supriadi; Kemala Sari Lubis
Jurnal Agroekoteknologi Vol 4, No 3 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (764.297 KB) | DOI: 10.32734/jaet.v4i3.13385

Abstract

Penyakit busuk pangkal batang (Ganoderma sp.) menurunkan produktifitas kelapa sawit di perkebunan kelapa sawit PT. PD. PATI. Perbaikan kondisi lingkungan tanah perlu dilakukan agar wilayah perakaran hingga pangkal batang dapat terhindar dari penyakit ini.  Penelitian ini bertujuan untuk mengevaluasi sifat fisik tanah antara lain persentase fraksi liat, fraksi pasir, kelembaban tanah, dan kandungan karbon organik tanah terhadap laju infeksi penyakit busuk pangkal batang. Penelitian dilakukan di perkebunan kelapa sawit PT.PD.PATI dengan metode survey. Sampel diambil dengan metode proportional purposive random sampling. Data diuji dengan asumsi data klasik, analisis korelasi dan analisis regresi. Hasil penelitian menunjukkan laju infeksi penyakit busuk pangkal batang dipengaruhi oleh kelembaban tanah tetapi tidak dipengaruhi oleh fraksi liat, debu dan kandungan karbon organik tanah.
PENINGKATAN PENGETAHUAN MASYARAKAT DALAM PEMBERIAN PUPUK ORGANIK DAN ANORGANIK UNTUK PRODUKTIVITAS TANAMAN Yudhy H. Bertham; Bambang Gonggo M.; Kartika Utami
JMM (Jurnal Masyarakat Mandiri) Vol 6, No 4 (2022): Agustus
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (974.595 KB) | DOI: 10.31764/jmm.v6i4.9322

Abstract

Abstrak: Pemupukan merupakan salah satu usaha penting untuk meningkatkan produksi pertanian yang sudah sejak lama dilakukan oleh para petani. Pemupukan bertujuan untuk mengoptimalkan pertumbuhan dan produktivitas tanaman secara maksimal. Namun, penggunaan pupuk yang tidak tepat seringkali menimbulkan kerusakan lingkungan dan penurunan produktivitas tanaman. Pupuk anorganik memiliki kandungan hara yang cukup namun menimbulkan permasalahan lingkungan dan meningkatkan biaya produksi, sementara itu pupuk organik memberikan perbaikan kualitas fisik dan kimia tanah namun membutuhkan jumlah besar dalam penggunaannya. Kegiatan Pengabdian ini bertujuan untuk meningkatkan pengetahuan dan wawasan pada masyarakat khususnya kepada kelompok Tani di Desa Mojorejo, Kabupaten Rejang Lebong, Bengkulu dalam memberikan pupuk organik dan anorganik untuk meningkatkan produktivitas tanaman pangan. Metode pelaksanaan kegiatan ini dibagi empat tahap yaitu: (1) persiapan berupa koordinasi tim pengabdian dengan mitra; (2) pelaksanaan berupa presentasi pemaparan teori, demonstrasi, dan diskusi; (3) pemberian pre-test dan post-test sebagai bentuk evaluasi; dan (4) pengolahan data dan analisa hasil evaluasi menggunakan rumus deskriptif persentase (kuantitatif). Hasil pengolahan data menunjukkan bahwa kegiatan ini meningkatkan wawasan dan pengetahuan serta ketertarikan masyarakat untuk kegiatan lanjutan berkaitan pemupukan organik dan anorganik sebesar 91.30% dan kategori baik sekali.Abstract: Fertilization is one of the important to increase agriculture production that have been done a long time by farmers. The fertilization aimed to optimalization productivity and growth of plant maximally. However, inappropriate use of fertilizer often caused environtmental damage and decrease crop productivity. The anorganic fertilizer have sufficient nutrient content however caused environtment degraded and increase production cost. Meanwhile, the organic fertilizer offered improvement soil physics and chemical quality but required large amount in use. The aimed of this social activity is to increase community knowledge and insight especially for farmers in Mojorejo Village, Rejang Lebong District, Bengkulu on organic and anorganic fertilization for increasing plant productivity. The implementing method was divided into four stages namely (1) preparation such as the team and the community partner coordination; (2) implementation such as theory debriefing, demonstration, and discussion; (3) implementation pre-test and post-test as evaluation; and (4) data processing and anlysis used the percentage descriptive formula (quantitive). The data processing results show that this activity can increase people`s knowledge and awareness regarding organic and anorganic fertilization and interesting for next session around 91.30%.
The Effect of Humic Acid and Micro Compound Fertilizer on Soil Microorganism Population and Upland Rice Yield in Coastal Land Nova Angelina Sibagariang; Yudhi Harini Bertham; Heru Widiyono; Anandyawati; Kartika Utami
TERRA : Journal of Land Restoration Vol. 5 No. 2 (2022)
Publisher : Department of Soil Science, Faculty of Agriculture, University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.5.2.58-64

Abstract

This study aims to determine the effect of humic acid and micro compound fertilizer on soil microbial populations and yields of Inpago10 varieties of upland rice in coastal areas. This research was conducted from August to December 2021 in Beringin Jaya village, Muara Bangkahulu District, and analysis of soil and plant samples at the Soil Science Laboratory, Faculty of Agriculture, University of Bengkulu. This study was prepared using a randomized complete block design (RCBD) with 2 factors.The first factor is the dose of humic acid which consists of 3 levels, namely 0 L ha-1 , 8 L ha-1, and 16 L ha-1. The second factor is a compound micro fertilizer consisting of 2 levels, namely 0 g ha-1 and 70 g ha-1. Each treatment was repeated 4 times, resulting in 24 experimental units. Observation variables include C-organic (%), respiration, total microbial population, pH KCl, pH H2O, plant height (cm), the number of grains per panicle, plant dry weight (g), root dry weight (g), and weight per plot (g plot-1). The Data were analyzed using variance analysis and extended with DMRT at the level of 5%. The results showed that the application of humic acid was able to stimulate the population of soil microorganisms by 38.91% and the addition of micro compound fertilizer was able to increase the yield of weight per plot by 26.69%. 
PENGEMBANGAN PUPUK ORGANIK CAIR LIMBAH RUMAH TANGGA SEBAGAI UPAYA PENGELOLAAN SAMPAH SKALA RUMAH TANGGA DI DESA SRIKUNCORO Anandyawati Anandyawati; Zainal Muktamar; Agung Tri Susilo; Kartika Utami
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 3 (2023): MARTABE : JURNAL PENGABDIAN MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i3.930-940

Abstract

Kelangkaan pupuk dikalangan petani menjadi persoalan serius yang harus diselesaikan untuk menunjang keberhasilan usaha budidaya. Petani secara mandiri harus mampu menyediakan pupuk organik untuk mensubstitusi kebutuhan pupuk anorganik yang terbatas. Tujuan kegiatan pengabdian pada masyarakat ini adalah untuk mensosialisasikan dan mempraktekkan proses pembuatan POC limbah rumah tangga, memanfaatkan POC tersebut sebagai pupuk pengganti dan bahan pembenah tanah. Pengabdian ini dilakukan melalui kegiatan penyuluhan dan praktek pembuatan POC secara langsung kepada 25 orang anggota gabungan kelompok tani Teratai Desa Srikuncoro Kabupaten Bengkulu Tengah, dimulai pada bulan Juli hingga September 2022. Hasil evaluasi menunjukkan bahwa 90% peserta menyatakan mampu dan akan menerapkan teknologi ini secara mandiri di kemudian hari. Tingkat persepsi peserta tergolong dalam kategori tinggi, yakni sebesar 4.20. Namun terjadi pergeseran nilai dan partisipasi peserta dalam setiap kelompok kategori. Begitu juga dengan penilaian terhadap harapan mereka, yakni sebesar 4.34.
PENGARUH VERMIKOMPOS TERHADAP KANDUNGAN KADMIUM DAN FASE VEGETATIF TANAMAN PADI GOGO DI INCEPTISOL Kartika Utami; Agus Ardiansyah; Priyono Prawito; Zainal Muktamar
Jurnal Tanah dan Sumberdaya Lahan Vol. 10 No. 2 (2023)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2023.010.2.24

Abstract

Heavy metal pollution is an important issue that must receive serious attention from various authorities, including the community. Cadmium (Cd) contamination will harm environmental and human health. Upland rice plants are the main food-producing plants susceptible to Cd contamination. This study aimed to determine the effect of vermicompost on cadmium content and the vegetative phase of upland rice plants in Inceptisol. This study used a Completely Randomized Design (CRD) with one factor, namely several dose levels of vermicompost, namely 0, 5, 10, 15, 20, and 25 t ha-1. The results of this study indicated that the use of vermicompost significantly affected the number of leaves and tillers of upland rice. A Vermicompost dose of 15 t ha-1 is considered optimum in increasing the number of leaves and tillers of upland rice. The use of vermicompost increased the vegetative growth of upland rice, so it increased the productivity of upland rice plants.
KINETIKA NITRAT DI DALAM TANAH PADA APLIKASI VERMIKOMPOS Kartika Utami; Evi Intan R.S.; Zainal Muktamar; Yudhy Harini Bertham; Kanang S. Hindarto
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 1 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.1.1-6

Abstract

Nitrogen is the most often deficient in the soil and will be impacted by farmers associated with the economic issue. Nitrogen exists in soil systems in many forms and changes, such as mineralization and mobilization, nitrification, denitrification, volatilization, runoff and erosion, and leaching. The Inceptisol has a pH of 5,5 (acid), impacting soil nutrients such as nitrogen, phosphor, potassium, and organic-C; meanwhile, Ultisols have high acidity and Al exchangeability. This study aimed to determine the rate of nitrate availability on Ultisols and Inceptisols added dairy cattle waste vermicompost. The experiment was arranged by Randomized Completely Design with two factors. The first factor was vermicompost with three doses; there were 0 ton/h, 15 tosn/ha, and 30 tons/ha and the second factor was two types of soils, Inceptisol and Ultisol. The experiment was conducted by three times. The result is on the R2 value, the reaction order kinetics model, which best explains the relationship between vermicompost dosing and nitrate availability in Ultisols and Inceptisols, is a first-order equation. The constant nitrification rate was 0.04 to 0.06 daily with three dairy cattle waste vermicompost dose levels. The potential nitrification showed that a high-level dose increased high nitrate. In Ultisols, the nitrification potential has risen from 1.21 to 1.44 mg/kg NO3-  in others, increasing from 1.36 to 1.41 mg/kg NO3-. Dairy cattle waste vermicompost can accelerate nitrification in acidic soil, especially Ultisols and Inceptisols. This biofertilizer can supply nitrate to the soil by enhancing microbial activity. Nitrate availability in the soil can be supported by 30 tons ha-1 dairy cattle waste vermicompost.  
Co-Authors Agung Tri Susilo Agus Ardiansyah Anandyawati Anandyawati Anandyawati Bambang Gonggo M. Evi Intan R.S. Heru Widiyono Kanang S. Hindarto kemala sari lubis Nova Angelina Sibagariang Priyono Prawito Supriadi Supriadi Yudhi Harini Bertham Yudhy H. Bertham Yudhy Harini Bertham Zainal Muktamar Zainal Muktamar Zainal Muktamar