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Bambang Gonggo Murcitro
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Faculty of Agriculture, University of Bengkulu, WR Supratman St. Kandang Limun, Bengkulu 38371
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INDONESIA
Jurnal Ilmu-Ilmu Pertanian Indonesia
Published by Universitas Bengkulu
ISSN : 14110067     EISSN : 26849593     DOI : https://doi.org/10.31186/jipi
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Ilmu-Ilmu Pertanian Indonesia (JIPI) is a scientific journal that publishes research results related to resource issues and agricultural productivity widely, including Agroecotechnology, Plant Breeding, Soil Science, Plant Protection, and Agricultural Ecology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 5 Documents
 1 
Search results for , issue "Vol 20, No 1 (2018)" : 5 Documents clear
PERTUMBUHAN BIBIT KELAPA SAWIT DI PRE-NURSERY DENGAN KOMPOSISI MEDIA TANAM DAN KONSENTRASI PUPUK CAIR Azolla pinnata BERBEDA Filsafat Waruwu; Bilman Wilman Simanihuruk; Prasetyo Prasetyo; Hermansyah Hermansyah
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 1 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.1.7-12

Abstract

[GROWTH OF OIL PALM SEEDLINGS IN PRE-NURSERY UNDER DIFFERENT MEDIA COMPOSITIONS AND CONCENTRATIONS OF Azolla pinnata LIQUID FERTILIZER].  Vigourous seedling is prerequisite to successful  production of oil palm.  Aside from the genetic quality of the planting material, supply of nutrients during early growth of the seedling play an important role in determinting the overall seedling performances. This study was performed to determine the best combination of media composition and concentration of liquid fertilizer made of Azolla pinnata for oil palm seedling growth during pre-nursery. A factorial arrangement of the treatments involving growing media consisted of different composition of oil palm empty fruit bunches compost and soil (1: 1, 1: 2, and 2: 1 v/v)  and different concentration of Azolla pinnata liquid fertilizer applications (0, 20, 40, and 60 mL/L) were arranged in a randomized complete block design with three replications. Data were collected for leaf number, stem diameter, seedling  height, and leaf greenness at 30, 60, and 90 days after sowing (DAS). A significant interaction effect between the treatments was observed on leaf number at 60 and 90 DAS. A further regression analysis revealed that the highest number of leaves (4.3 at 60 DAS and 6.9 at 90 DAS) were attained on the media composition of 1:1 with liquid fertilizer application at  37.5 and 56 mL/L, respectively. Seedling  height and stem diameter at 90 DAP showed quadratic responses to the increasing concentration of the liquid fertilizer applications. The maximum seedling height (26.22 cm) was attained  at  the liquid fertilizer concentrations of 36.21 mL/L. Similarly, the maximum stem diameter (7.43 mm) was attained at the concentration of 51.00 ml/L. The leaf greeneess at 60 DAS was increased in a linear fashion with the increasing concentration of the liquid fertilizer.
HUBUNGAN KELERENGAN DENGAN KADAR AIR TANAH, PH TANAH, DAN PENAMPILAN JERUK GERGA DI KABUPATEN LEBONG Nurlina Banjarnahor; Kanang Setyo Hindarto; Fahrurrozi Fahrurrozi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 1 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.1.13-18

Abstract

[RELATIONSHIP OF SLOPE STEEPNESS TO SOIL WATER CONTENT, SOIL PH, AND PERFORMANCES OF GERGA ORANGE AT LEBONG REGENCY]. In Lebong Regency, gerga orange is commonly grown in hilly areas and many of the crop stands were found on steep sloped land. Objective of this study was to determine the pattern of relationship of slope steepness to soil water content, soil pH, and the overall plant performances. Soil samples were collected from the area below the canopy of 300 gerga orange trees differing in the slope steepness for for soil water content (SWC) and soil pH.  The observation of plant performances were also made from the same tree as used for the soil properties observations. The analysis of regression indicated that relationship of slope steepness to both the observed soil properties and plant performances could be represented by the linear models suggesting that all the observed variables were reduced along with the increasing slope steepness.
EFEKTIVITAS EKSTRAK DAUN PEPAYA DALAM PENGENDALIAN KUTU DAUN PADA FASE VEGETATIF TANAMAN TERUNG Riski Ramadhona; Djamilah Djamilah; Mukhtasar Mukhtasar
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 1 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.1.1-6

Abstract

[EFFICACY OF PAPAYA LEAF EXTRACT IN CONTROLLING COTTON APHID DURING VEGEATIVE GROWTH STAGE OF EGGPLANT].  Cotton aphid (Aphis gossypii Glover) can cause serious economic losses in the eggplant production.  The application of synthetic pesticides can be effective in controlling the pest but it may not be the best solution for the human health and environment. Botanical pesticides have long been known for their potential as the alternative to synthetic pesticides for crop protection with reduced risk to human health and environmental hazard. Objective of this study was to compare the efficacy of papaya leaf extract solutions in controlling cotton aphid and their effect on the vegetative growth of eggplant. Papaya leaf extract solutions differing in concentration (0%, 10%, 20%, 30%, 40%, and 50%) were sprayed onto aphid infested eggplants to observe the insect mortality, crop damage, and the lethal concentration at LC50 and LC90. The mortality of aphid was significantly increased following the application of papaya leaf extract, with the highest mortality (91.33%) was found on the concentration of 50%. The lethal concentrations of the extract causing 50% (LC50) and 90% (LC90) aphid mortality were   9.98% and 41.99%, respectively. As compared to the control treatment, the crop damage was significantly reduced by the application of the papaya leaf extract solution. 
PENAMPILAN 10 AKSESI TALAS (Colocasio esculenta (L). Schott) DI LAHAN PESISIR BENGKULU Ramalan Manahara Simamora; Yulian Yulian; Edhi Turmudi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 1 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.1.19-25

Abstract

Talas (Colocasio esculenta (L). Schott) merupakan salah satu komoditas pangan yang belum termanfaatkan secara maksimal. Potensi  komoditas tersebut belum didukung dengan data yang baik. Untuk menggali potensi yang dimiliki tanaman talas perlu dilakukan pendataan sifat pentingnya dengan melakukan karakterisasi. Karakterisasi dapat dilakukan berdasarkan karakter morfologi dan fisiologi tanaman. Penelitian ini bertujuan untuk mengidentifikasi penampilan 10 genotipe talas pada fase vegetatif di lahan pesisir. Penelitian ini dilaksanakan pada bulan Juni sampai Agustus 2015 di Kelurahan Sukamerindu, Kecamatan Sungai Serut, Kota Bengkulu dengan ketinggian tempat + 14 m dpl. Penelitian ini menggunakan Rancangan Acak Kelompk Lengkap (RAKL) dengan 10 genotipe talas dan masing-masing perlakuan diulang 3 kali sehingga diperoleh total 30 unit percobaan dengan total 240 tanaman. Hasil penelitian menunjukkan bahwa secara morfologi talas dikelompokkan berdasarkan warna batang (Putih :  genotipe T2, T4, T5, T6, T7, T8 dan T9, pink pucat : genotipe T1, T3, orange kemerah mudaan : genotipe T10), warna daun (Hijau : genotipe T2, T3, T4, T5, T6, T8, T9 dan T10, hijau tua : T7, hijau keunguan : T1), bentuk daun (perisai :  genotipe T1, T6, delta : genotipe T2, T3, T7, Oval : genotipe T5, T8, T9 dan T10,  hati : genotipe T4), ujung daun (Runcing: genotipe T1, T2, T3, T4, T9, T10, tumpul : genotipe T5, T6, T7, bundar : genotipe T8) tepi daun (Bergelombang : genotipe T1, T2, T3, T5, T6, T8, T9, T10, rata : genotipe T4,T7), dan warna tangkai daun (Hijau : genotipe T2, T4, T10, hijau kekuningan : genotipe T5,T8,T9, hijau kebiruan : genotipe T7, hijau keunguan : genotipe T3, T6, hitam : genotipe T1).  Terdapat beda sangat nyata antar 10 genotipe talas dalam hal tinggi tanaman, tingkat kehijauan daun, diameter batang semu dan jumlah anakan.
PERTUMBUHAN DAN HASIL PADI SIRANTAU PADA PEMBERIAN BEBERAPA MACAM DAN DOSIS PUPUK KANDANG Ringki Putra Azalika; Sumardi Sumardi; Sukisno Sukisno
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 20, No 1 (2018)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.20.1.26-32

Abstract

Salah satu upaya peningkatan produksi padi adalah dengan pengembangan pertanian di lahan – lahan sub optimal yaitu dengan penanaman varietas padi yang toleran kekeringan seperti kultivar sirantau. Penelitian ini bertujuan untuk menentukan jenis dan dosis pupuk kandang yang optimum untuk pertumbuhan dan hasil padi sirantau. Penelitian telah dilaksanakan pada bulan Januari 2016 - Mei 2016 di Kebun Percobaan Fakultas Pertanian Universitas Bengkulu. Penelitian ini merupakan percobaan pot faktorial dua faktor, menggunakan rancangan percobaan RAL (Rancangan Acak Lengkap).  Faktor pertama adalah jenis pupuk kandang, yaitu Pupuk kandang Sapi, Pupuk kandang Kambing, Pupuk kandang Ayam. Faktor kedua adalah dosis pupuk kandang, yaitu 5 ton/ha, 10 ton/ha, 15 ton/ha, 20 ton/ha, dan 25 ton/ha,  masing – masing perlakuan diulang sebanyak 3 kali. Variabel yang diamati meliputi tinggi tanaman, jumlah anakan total, jumlah anakan produktif, panjang malai, jumlah bulir per malai, persentase bulir bernas, bobot 100 gabah kering, dan bobot gabah kering perumpun. Hasil penelitian menunjukkan bahwa jenis pupuk kandang memberikan pengaruh nyata terhadap variabel jumlah anakan total, jumlah anakan produktif dan bobot gabah kering per rumpun. Pupuk kandang ayam dengan dosis 10 ton/ha memberikan hasil padi terbaik dengan potensi hasil 123,13 g per rumpun (5,77 ton/ha).

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