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All Journal Jurnal Ilmu-Ilmu Pertanian Indonesia AGRIVITA, Journal of Agricultural Science AGRITEPA: Jurnal Ilmu dan Teknologi Pertanian JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Penelitian Pertanian Terapan Agriprima : Journal of Applied Agricultural Sciences Jurnal EnviScience (Environment Science) Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura BERNAS: Jurnal Pengabdian Kepada Masyarakat Jurnal Wacana Pertanian Seandanan: Jurnal Pengabdian pada Masyarakat Jurnal Pengabdian Pada Masyarakat Jurnal Mitrawarga
Nurleni Kurniawati
Sekolah Tinggi Ilmu Pertanian Dharma Wacana
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Production and Quality Pennisetum purpureum at Shading Condition and Nitrogen Fertilizer Dosage Mangiring, Windu; Kurniawati, Nurleni; Priyadi, Priyadi
Jurnal Penelitian Pertanian Terapan Vol 17, No 1 (2017)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.736 KB) | DOI: 10.25181/jppt.v17i1.41

Abstract

This experiment aims to determine 1) The effect of  shading and nitrogen fertilizer to production   of Pennisetum purpureum ; and 2) The effect of  shading and nitrogen fertilizer  to quality of Pennisetum purpureum,experiment performed in January until May 2016at fieldSTIPER Dharma Wacana Metro.The experiment was investigated in random block design with three replication. The first factor is consisted of two treatment of shading level, i.e (0%) without shading  and (50%)  paranet shade. The second factor consisted of three treatment of nitrogen fertilizer dosage, i.e 50 kgha-1 nitrogen fertilizer, 100 kgha-1nitrogen fertillizer and 200 kgha-1 nitrogen fertilizer. The results showed that effect paranet shade 50% in fact evidently  decrease the production of Pennisetum purpureum 60 %. Quality of Pennisetum purpuremlike  nitrate content, crude protein content  and crude fiber contenton 50%paranet shade 0,2%-0,11%;7,8%-10,8%; and 29,13%-30,00%. In shade condition, a dose of 50 kgha-1not significant production of elephant grass forage, elephant grass forage production response to increasing doses of N (50-200 kgha-1)is more significant than whitout shade. Key words : Pennisetum purpureum,elephant grass, paranet shade, nitrogen
PERTUMBUHAN DAN HASIL TANAMAN UBI JALAR (Ipomoea batatas L.) PADA BERBAGAI DOSIS PUPUK KALIUM DAN WAKTU PEMBALIKAN BATANG Cindy Maya Silvia; Nurleni Kurniawati; Syafiuddin Syafiuddin
Jurnal WACANA PERTANIAN Vol 17, No 1 (2021): Jurnal Wacana Pertanian
Publisher : STIPER Dharma Wacana Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37694/jwp.v17i1.65

Abstract

Ubi  jalar (Ipomoea  batatas  L) merupakan tanaman yang dapat berpotensi pengganti beras sebagai makanan pokok. Upaya yang dapat dilakukan dalam meningkatkan hasil produksi ubi jalar dengan memenuhi unsur hara seperti dilakukan pemupukan kalium,  serta  pembalikan batang yang bertujuan mencegah dihasilkannya umbi disetiap ruas. Tujuan penelitian ini yaitu  untuk  mengetahui pengaruh  berbagai  dosis  pupuk kalium   dan waktu pembalikan batang serta interaksinya terhadap  pertumbuhan  dan hasil  tanaman  ubi  jalar. Penelitian ini menggunakan Rancangan  Acak  Kelompok  (RAK) dengan faktor pertamaya yaitu dosis kalium (KCl) : 50  kg ha-1 (k1),  100  kg ha-1 (k2), dan 150 kg ha-1 (K3). Faktor keduanya yaitu waktu pembalikan batang yaitu: tanpa pembalikan (wo), 4 mst dan 8 mst (w1), 8 mst dan 12 mst (w2).  Analisis data pengamatan menggunakan ANOVA dengan uji lanjut BNT dengan p < 0,05. Hasil penelitian menunjukkan bahwa berbagai dosis pupuk kalium memberikan pengaruh yang berbeda-beda pada pertumbuhan tanaman ubi jalar. Diketahui bahwa dosis pupuk KCl  50 kg ha-1 memberikan pengaruh terbaik yaitu memberikan  jumlah  akar  terbanyak dan  berat  berangkasan  basah tertinggi.  Pada waktu pembalikan batang diketahui waktu pembalikan 4 MST dan 8 MST memberikan pengaruh terbaik yaitu meningkatkan berat  berangkasan kering tertinggi, serta tidak  terdapat  interaksi  antara  dosis  pupuk  kalium  dengan  waktu pembalikan batang terhadap pertumbuhan dan hasil tanaman ubi jalar.
Aktivitas Biologi Tanah yang Berasal dari Perkebunan Karet pada Berbagai Kondisi Kelengasan Priyadi Priyadi; Nurleni Kurniawati; Priyo Adi Nugroho
Jurnal EnviScience (Environment Science) Vol 2, No 1 (2018)
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.308 KB) | DOI: 10.30736/2ijev.v2iss1.45

Abstract

Kandungan  air  tanah  merupakan  faktor  pembatas  penting  yang  mempengaruhi  populasi dan  aktivitas  mikroorganisme  secara  signifikan.  Tujuan  dari  penelitian  ini  yaitu  bertujuan  untuk mengetahui  seberapa  besar  aktivitas  biologi  tanah  (populasi  mikrorganisme  dan  respirasi)  pada berbagai tiga taraf kelengasan tanah. Hasil penelitian mennjukan bahwa aktivitas biologi tanah asal kebun  karet  pada  berbagai  kelengasan  ditandai  dengan  adanya  fungi,  bakteri,  dan  produksi  CO2. Populasi fungi tertinggi yaitu 4,7 Log CFU g-1 tanah pada taraf kelengasan tanah 50 % -KL, populasi bakteri tertinggi yaitu 1,26 Log CFU g-1 tanah pada taraf kelengasan tanah 100 % -KL, sedangkan rataan tertinggi aktivitas mikroorganisme tanah dalam produksi CO2 terdapat pada taraf kelengasan 100%-KL yaitu 2,77 mg.CO2.
Production and Quality Pennisetum purpureum at Shading Condition and Nitrogen Fertilizer Dosage Windu Mangiring; Nurleni Kurniawati; Priyadi Priyadi
Jurnal Penelitian Pertanian Terapan Vol 17 No 1 (2017)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.736 KB) | DOI: 10.25181/jppt.v17i1.41

Abstract

This experiment aims to determine 1) The effect of  shading and nitrogen fertilizer to production   of Pennisetum purpureum ; and 2) The effect of  shading and nitrogen fertilizer  to quality of Pennisetum purpureum,experiment performed in January until May 2016at fieldSTIPER Dharma Wacana Metro.The experiment was investigated in random block design with three replication. The first factor is consisted of two treatment of shading level, i.e (0%) without shading  and (50%)  paranet shade. The second factor consisted of three treatment of nitrogen fertilizer dosage, i.e 50 kgha-1 nitrogen fertilizer, 100 kgha-1nitrogen fertillizer and 200 kgha-1 nitrogen fertilizer. The results showed that effect paranet shade 50% in fact evidently  decrease the production of Pennisetum purpureum 60 %. Quality of Pennisetum purpuremlike  nitrate content, crude protein content  and crude fiber contenton 50%paranet shade 0,2%-0,11%;7,8%-10,8%; and 29,13%-30,00%. In shade condition, a dose of 50 kgha-1not significant production of elephant grass forage, elephant grass forage production response to increasing doses of N (50-200 kgha-1)is more significant than whitout shade. Key words : Pennisetum purpureum,elephant grass, paranet shade, nitrogen
Pengaruh Aplikasi Abu Terbang dan Pupuk Kotoran Sapi terhadap Populasi Mikroorganisme di Tanah Ultisol Nurleni Kurniawati; FNU Priyadi
Agriprima : Journal of Applied Agricultural Sciences Vol 5 No 1 (2021): MARET
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/agriprima.v5i1.406

Abstract

Ultisol tergolong tanah kering masam yang paling luas di Indonesia tetapi minim dimanfaatkan untuk bidang pertanian. Hal ini karena kandungan Al yang tinggi, kurangnya unsur hara, dan rendahnya nilai pH, sehingga perlu dilakukan perbaikan kondisi tanah. Fly ash dan pupuk kotoran sapi merupakan bahan yang dapat digunakan sebagai pembenah tanah ultisol. Fly ash merupakan limbah pembakaran batu bara dengan kandungan unsur hara dan dapat menaikkan pH tanah. Pupuk kotoran sapi mengandung unsur hara yang berperan dalam memperbaiki  sifat biologi, kimia, dan fisika tanah. Penelitian ini bertujuan untuk mendapatkan populasi mikroorganisme tanah dengan penggunaan fly ash dan pupuk kotoran sapi sebagai pembenah tanah ultisol. Penelitian menggunakan Rancangan Acak Kelompok Lengkap yang disusun secara Faktorial dengan 3 ulangan sehingga terdapat 36 satuan percobaan. Faktor pertama adalah dosis fly ash dan faktor kedua adalah dosis pupuk kotoran sapi. Variabel pengamatan berupa (total fungi, total bakteri, dan unsur kimia tanah). Hasil penelitian menunjukan bahwa  penggunaan bahan pembenah tanah berupa  fly ash dan pupuk kotoran sapi dapat mempengaruhi populasi mikroorganisme tanah dan sifat kimia pada tanah utisol. Populasi mikroorganisme tertinggi didapatkan pada dosis fly ash 100 t/ha dengan total populasi bakteri 7,6x105±1,78 Log CFU /g dan populasi fungi 17,8x107±1,29 Log CFU /g. Sedangkan dosis pupuk kandang sapi 10, 20, 30 t/ha tidak berbeda nyata pada variabel yang diamati. Penggunaan dosis fly ash 150 t/ha meningkatkan pH tanah mencapai 7,29, kandungan N 0,08%, P 52,36 mg/kg, K 26,48 mg/kg, dan C-Organik sebesar 1,12 %.
Pelatihan Pembuatan Virgin Coconut Oil dengan Metode Fermentasi Alami Termodifikasi untuk Peningkatan Pendapatan Kelompok Wanita Tani Gedong Tataan, Kabupaten Pesawaran Fizzaria Khasbullah; Priyadi Priyadi; Rindu Mangiring; Nurleni Kurniawati
Seandanan: Jurnal Pengabdian Pada Masyarakat Vol. 1 No. 2 (2021): Seandanan: Jurnal Pengabdian pada Masyarakat
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1010.662 KB) | DOI: 10.23960/seandanan.v1i2.16

Abstract

Pandemi Covid-19 telah menimbulkan dampak yang cukup besar, termasuk pada perekonomian rumah tangga. Salah satu upaya yang dapat dilakukan yaitu melalui pemberdayaan kelompok wanita tani (KWT). Tujuan dari kegiatan ini adalah memberikan informasi dan keterampilan untuk meningkatkan kualitas produk Virgin Coconut Oil (VCO). Kegiatan pengabdian masyarakat dilaksanakan di Kecamatan Gedong Tataan Kabupaten Pesawaran pada bulan Februari 2021. Metode pelaksanaannya dilakukan dengan penyuluhan, demonstrasi, dan evaluasi kegiatan. Hasil evaluasi menunjukkan bahwa kegiatan berjalan dengan baik sesuai rencana. Seluruh kegiatan disambut baik oleh para peserta yang ditunjukkan dengan meningkatnya pemahaman dan pengetahuan tentang proses pembuatan VCO dari 61,54% menjadi 92,31%. Selain itu, minat terhadap topik yang disampaikan mendapat peningkatan tanggapan yang baik sebanyak 45,45% menjadi 72,73%. KWT juga berharap kegiatan serupa dapat dilakukan secara berkesinambungan guna memberikan pengetahuan kepada anggota kelompok.
Low-Cost Synthesis of Zsm-5 Zeolite Using Organic Silica from Rice Husk Agro Waste Priyadi Priyadi; Nurleni Kurniawati; Vera Prawestiana
AGRITEPA: Jurnal Ilmu dan Teknologi Pertanian Vol 9 No 1 (2022)
Publisher : UNIVED Press, Dehasen University Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/agritepa.v9i1.2104

Abstract

Rice husk is an agricultural waste that has the potential source of silica in low-cost zeolite synthesis. The objectives of this study were 1) silica extraction of rice husks as synthetic zeolite raw materials, 2) synthesis and characterized ZSM-5 zeolite from rice husks silica. Silica extraction was carried out by soaking rice husks using a heated 15% NaOH solution. Furthermore, 10% HNO3 solution was added to pH 7 for 12 hours. The filtrate dried in an oven for 12 hours at 100oC. Analysis of silica composition using XRF, crystallinity using XRD, and SEM for morphology. The results showed that rice husks were successfully extracted with an alkali addition and used as a source of silica in the synthesized of ZSM-5 zeolite. The zeolite synthesis was carried out with a low temperature of 90oC and a structural directing agent decrease. Zeolite ZSM-5 showed that the level of crystallinity and morphology by the standard ZSM-5 zeolite. Decreasing of the structural directing agent was found at the SDA/Si ratio of 0.045.
Pola Sebaran dan Rendemen Hasil Gliserolisis Enzimatis Campuran CPO (Crude Palm Oil) dan PKO (Palm Kernel Oil) Fizzaria Khasbullah; Murhadi Murhadi; Nurleni Kurniawati; Bigi Undadraja; Widia Rini Hartari
Jurnal Penelitian Pertanian Terapan Vol 22 No 3 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i3.2272

Abstract

The use of oil in the food and non-food industries is increasing with the increasing number of findings on oleochemical synthesis processes that can be applied on an industrial scale. MAGs and DAGs are used as part of fat products and are often associated with other emulsifiers. MAG synthesis can be carried out chemically and enzymatically. The glycerolysis process using lipase enzymes as biocatalysts requires relatively low energy and produces products with better quality. This study uses enzymatic glycerolysis and will observe the distribution pattern of the glycerolysis product which describes the level of completeness of the reaction. The distribution pattern that describes the perfection of the reaction is a distribution pattern that has spots that spread regularly (not random/straight). The experiment was carried out with a single factor and two replications. The data are presented in the form of tables and histograms, then the results are discussed descriptively. Treatment factors, namely the ratio of the mixture of CPO and PKO consisting of 11 ratios of CPO and PKO: 0.2; 0.4; 0.6; 0.8; 1.0; 1,2; 1.4; 1.6; 1.8 and two controls. Based on the observations made, the glycerolysis of a mixture of CPO and PKO in various ratios, produces a pattern of distribution on the TLC plate which is regular and the Rf (Retardation factor) value shows that from closest to furthest are MAG, DAG, ALB, and TAG with Rf 0.01; 0.12; 0.31; 0.57, respectively. The highest MAG yield was produced by the results of glycerolysis of CPO control (83.90%) followed by PKO control (74.90%) and a mixture of CPO-PKO with a ratio of 0.8 (73.71%). The highest yield of MAG-DAG was produced by a mixture of CPO-PKO with a ratio of 1.6 (93.21%) followed by CPO control (91.88%) and a ratio of 0.8 (73.71%). Key Word: CPO, enzymatic glycerolysis, MAG, PKO, TLC.
The Effects of Fly Ash and Cow Manure on Water Spinach Grown on An Ultisol of Lampung, Indonesia Priyadi Priyadi; Rianida Taisa; Nurleni Kurniawati
AGRIVITA, Journal of Agricultural Science Vol 45, No 2 (2023)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v45i2.3023

Abstract

Fly ash is the residue of coal combustion that can potentially be an ameliorant. Unfortunately, its use is limited by government regulations that are classified as hazardous and toxic materials. This study examines the effectiveness of fly ash and cow manure as an ameliorant for Ultisols. The experiment was carried out by two factors, i.e., the dose of fly ash, namely 0, 50, 100, and 150 t/ha, and the quantity of cow manure, i.e., 10, 20, and 30 t/ha. The results show that fly ash and cow manure could be ameliorants for low-pH soils such as Ultisols. The suitable dose of fly ash and cow manure as ameliorants in this study are 50 t/ha and 20 t/ha, respectively. Increasing the amount of fly ash caused a decrease in the growth of water spinach, plant height, number of leaves, fresh plant weight, root length, and dry weight of the root. In addition, fly ash increased pH 6.66-7.30, total P 31.74-52.21 mg/100 g, and total K 16.19-25.75 mg/100 g.
Produksi Ubi Jalar (Ipomoea batatas L.) Pada Berbagai Dosis Pupuk Kalium Dan Waktu Pembalikan Batang Cindy Maya Silvia; Nurleni Kurniawati; Syafiuddin Syafiuddin
JURNAL WACANA PERTANIAN Vol 17 No 1 (2021): Jurnal Wacana Pertanian
Publisher : Pusat Penelitian dan Pengabdian pada Masyarakat Sekolah Tinggi Ilmu Pertanian Dharma Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sweet potato (Ipomoea batatas L.) is a plant that has the potential to replace rice as a staple food. Efforts can be made to increase the yield of sweet potato production by fulfilling nutrients such as potassium fertilization, as well as turning the stems to prevent the production of tubers in each segment. The purpose of this study was to determine the effect of various doses of potassium fertilizer and time to turn the stems and their interactions on the growth and yield of sweet potato plants. This study used a randomized block design (RAK) with the first factor, namely the dose of potassium (KCl): 50 kg ha-1 (k1), 100 kg ha-1 (k2), and 150 kg ha-1 (k3). The second factor is the time of the stem reversal, namely: no reversal (po), 4 wap and 8 wap (p1), 8 mst and 12 wap (p2). The analysis of the observational data used ANOVA with the LSD further test with p <0.05. The results showed that various doses of potassium fertilizer had different effects on the growth of sweet potato plants. It is known that the KCl fertilizer dose of 50 kg ha-1 gives the best effect, namely giving the highest number of roots and the highest wet stubble weight. At the time of stem reversal, it was known that the reversal time of 4 WAP and 8 WAP had the best effect, namely increasing the highest dry weight, and there was no interaction between the dose of potassium fertilizer and the time of stem reversal on the growth and yield of sweet potato plants.
Co-Authors Alima Maolidea Suri Cindy Maya Silvia Cindy Maya Silvia Eka Rusmiati Etik Puji Handayani Feby Musti Ariska Feby Musti Ariska Fizzaria Khasbullah Handayani, Etik Puji Mardliyah, Ainul Murhadi Murhadi Ponijan Priyadi Priyadi Priyadi Priyadi Priyo Adi Nugroho Rakhmiati Rakhmiati Rakhmiati Rindu Mangiring Sutomo Sutomo Syafiuddin Syafiuddin Syafiuddin Syafiuddin Taisa, Rianida Undadraja, Bigi Vera Prawestiana Widia Rini Hartari Windu Mangiring Windu Mangiring Yatmin Zulkarnaen