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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Jurnal Ilmu Pertanian Agroland : Jurnal Ilmu-Ilmu Pertanian Jurnal Lahan Suboptimal Jurnal Hortikultura Jurnal Konstruksia AGRIVITA, Journal of Agricultural Science Kultivasi Jurnal Sains Teh dan Kina Jurnal Penelitian Pertanian Tanaman Pangan Rancang Bangun Journal of Tropical Crop Science jurnal Ilmu Pertanian (Agricultural Science) Al-Awqaf: Jurnal Wakaf dan Ekonomi Islam Media Pertanian Mabsya: Jurnal Manajemen Bisnis Syariah Jurnal Agronomika Jurnal Ilmiah Teknik Sipil (JIMATS)
Dwi Guntoro
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, IPB University, Kampus IPB Darmaga, Bogor 16680
Religion Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Transportation

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Pemanfaatan Cendawan Mikoriza Arbuskula dan Bakteri Azospirillum sp. untuk Meningkatkan Efisiensi Pemupukan pada Turfgrass Dwi Guntoro; M. A. Chozin; Budi Tjahjono; Irdika Mansur
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (81.105 KB) | DOI: 10.24831/jai.v34i1.1277

Abstract

Introduction turfgrass varieties require fertilization with high dosage, but it can contaminate environment.  The increasing  efficiency of fertilizer absorbtion was expected to reduce fertilizer requirement.  The experiment was conducted to study the effect of arbuscular mycorrhizae and Azospirillum sp. on nutrient uptake, fertilization efficiency, growth and visual quality of turfgrass.  The experiment consisted of two factors, i.e. the dosages of fertilizer and inoculant types.  The dosages of fertilizer were the relatif dosage from recommended dosage (RD) i.e 100%RD, 75%RD, 50%RD, and 25%RD.  The recommended dosage was 0.5 kg N + 1.5 kg P2O5 + 0.5 kg K2O per 100 m2/month by compound fertilizer (15-15-15).  The treatment of 100%RD without inoculant was used as control.  The inoculant types were no inoculant, arbuscular mycorrhizal fungi (AMF), Azospirillum sp., and AMF+Azospirillum sp.  Factorial experiment was arranged in Randomized Block Design with three replications.  The results showed that interaction between inoculant type and dosage of fertilizer affected nutrient uptake, fertilizer efficiency, growth, and visual quality.  AMF inoculation and 25%RD increased shoot N uptake and N fertilizer efficiency, compared with control.  Azospirillum sp. inoculation at 75% RD increased shoot N concentration, but did not affect on shoot N uptake and N fertilizer efficiency compared with control.  Inoculant did not affect shoot P concentration, shoot P uptake, and P fertilizer efficiency.  Azospirillum and AMF+Azospirillum inoculation increased shoot K concentration.  AMF+Azospirillum inoculation and 100%RD increased shoot N concentration and shoot N uptake, compared with control.    Key words : Arbuscular mycorrhizal fungi, Azospirillum, fertilizer efficiency, nutrient uptake, turfgrass.
Pertumbuhan, Serapan Hara dan Kualitas Turfgrass pada Beberapa Dosis Pemberian Pupuk Hayati Mikoriza Dwi Guntoro; Bambang S. Purwoko
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 35 No. 2 (2007): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (40.528 KB) | DOI: 10.24831/jai.v35i2.1323

Abstract

The objective of the research was to study the effect of mycorrhiza dosage on nutrient uptake, growth and turfgrass quality.  The research was conducted at IPB turfgrass experimental farm, Darmaga, Bogor.  The experiment was arranged in randomized complete block design with four replications.  The treatment consisted of five dosages of mycorrhiza (100, 200, 300, 400, and 500 g per pot).  The result showed that application of mycorrhiza at 300 g per pot increased coverage area and dry weight of clipping, and decreased vertical height, but it did not significantly increase nutrient uptake and quality of turfgrass compared to control.   Key words :  Mycorrhiza, turfgrass, growth, nutrient uptake, quality
Invigorasi Benih untuk Memperbaiki Perkecambahan Kacang Panjang (Vigna unguiculata Hask. ssp. sesquipedalis) pada Cekaman Salinitas , Erinnovita; Maryati Sari; Dwi Guntoro
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 3 (2008): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (59.047 KB) | DOI: 10.24831/jai.v36i3.1379

Abstract

The objective of this research was to study the influence of invigoration on yard-long bean seed germination under salinity stress. The research was conducted at Seed Science and Technology Laboratory, Department of Agronomy IPB from September to December 2007. Seed of two yard-long bean (Vigna unguiculata Hask. ssp. sesquipedalis) varieties, i.e. 777 and Landung Super, were used to investigate the effects of invigoration treatments, i.e. water soaking, sand priming, sawdust matriconditioning, osmoconditioning with CaCl2, NaCl, KCl and KNO3, under salinity 1.0% NaCl (w/v) stress condition. Sand priming and water soaking treatments significantly enhanced the germination percentage, speed of germination and dry matter of normal seedling under the salinity stress condition. Germination percentage of seed with sand priming was 33.33% higher than tgat of control, and germination percentage of seed with water soaking was 28.66% higher than that of control. The result  suggested that sand priming and water soaking were the effective methods to improve yard-long bean seed germination under salinity stress condition.   Key words: invigoration, salinity stress, sand priming, water soaking, yard-long bean   seed
Pengaruh Penggunaan Pupuk Anorganik dan Pupuk Semai Mikrobia terhadap Pertumbuhan dan Produksi Kapas (Gossypium hirsutum L.) Dwi Guntoro; M. A. Chozin; Dini Dwirestina
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 32 No. 1 (2004): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (624.459 KB) | DOI: 10.24831/jai.v32i1.1430

Abstract

effect of inorganic fertilizer dosage and concentration of Semai Mikrobia fertilizer on cotton growth and production was studied at Cikabayan greenhouse, IPR. The experiment was arranged in split plot design with three replicates. The dosages of inorganic fertilizers as the main plot and the concentration of Semai Mikrobia as sub plot. The dosages of inorganic fertilizers were no fertilizer, 50% recommended dosage, and IOO% recommended dosage and the concentrations of Semai Mikrobia were 0 cc/l water, 4 cc/l water, 8 cc/l water, and I2 cc/l water. The results indicated that the application of Semai Mikrobia fertilizer up to I2 cc/l did not affect growth and production of cotton. There was no interaction effect between the dosage of inorganic fertilizer and Semai Mikrobia concentration. Inorganic fertilizer application at IOO% recommended dosage increased height and the number of generative branch compared with no fertilizer.
Pengaruh Pemberian Kompos Bagase terhadap Serapan Hara dan Pertumbuhan Tanaman Tebu (Saccharum officinarum L.) Dwi Guntoro; , Purwono; , Sarwono
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 31 No. 3 (2003): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1081.802 KB) | DOI: 10.24831/jai.v31i3.1481

Abstract

The effect of bagase compost application on nutrient uptake and growth of sugarcane was studied at PG Jatitujuh. Majalengka, West Java, from October 1998 to March 1999. The experiment was arranged in split plot design with three replications. The bagase compost as sub plot and the recommended rate of inorganic fertilizer as the main plot. The rates of bagase compost were 0.0, 2.5, 5.0, and 7.5 ton/ha and the recommended rate of inorganic fertilizers were 100%, 75%, and 50% of recommended rate. The recommended rate of inorganic fertilizer was 300 kg Urea, 200 kg ZA, 150 kg SP-36, and 200 kg KCl/ha. The results showed that bagase compost application at 7.5 ton/ha significantly increased nitrogen uptake at 3 Month After Planting (MAP) compared to no compost, but did not affect P2O5, K2O and  S. Lower rate of inorganic fertilizer decreased S uptake at 2 MAA, but did not affect N, P2O5 dan K2O. Combination of 5.0 ton/ha compost bagase with 100% recommended rate of inorganic fertilizer tended to increase sugarcane growth. Bagase compost application with inorganic fertilizer did not affect the percentage of growth, height, and diameter off  stalk.   Key words: Sugarcane, Bagase compost, Nutrient uptake
UJl HASIL KEPRASAN BEBERAPA VARlETAS TEBU LAHAN KERING PADA DAERAH BERIKLIM BASAH , Purwono; Sugeng Sudiatso; Dwi Guntoro
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 25 No. 1 (1997): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (785.513 KB) | DOI: 10.24831/jai.v25i1.1652

Abstract

The study of first rationed sugar cane on wet climate region was carried out at Sindangbarang Bogor (belong to type A according Schmidt and Fergusson classification) from October 1993 to April 1994. The study was designed to fined out the yield and total-sugar content. Several cultivar of Ps 87 (produced by P3GI) were tested (Ps 87-985, Ps 87-21718, Ps 87-22189, Ps 87-22704, Ps 87-21781, Ps 87-22098, Ps 87-21781, Ps 87-21067), and Ps 58 as a control. The result showed that the Ps 87-22074 produced the highest yield (19.524,7 g/m "juring") and total-sugar content (13,16%) among the other.
Co-Authors , Erinnovita , Purwono , Sarwono ,, Usman ,, Yuniarti -, Bachtiar . Yusak Abdul Harris Burhan Achmad Yozar Perkasa, Achmad Yozar Achmad Zakaria Achmad Zakaria Ade Sumiahadi Adolf Pieter Lontoh, Adolf Pieter AHMAD JUNAEDI Alghifari, Ahmad Fadli Anas Dinurrohman Susila Andhika Bara Alhuda Andreas Kefi Andriyani, Yuni Anggraeni, Ratih Prajnaparamita Ani Kurniawati Anung Wahyudi Asrul Saputra Atang Sutandi Bachtiar Bachtiar Bambang S. Purwoko Bambang Sapta Purwoko Bilkis, Faras Gaitsa Budi Rahardjo Budi Tjahjono Bukhori, Anwar Desembardi, Faried Desyandri Desyandri Dewi, Sangrani Annisa Dhika Prita Hapsari Diaguna, Ridwan Dini Dwirestina Dita Nurul Latifah Dulbari, Dulbari Durotun Nafisa Dwiwanti Sulistyowati Dwiwanti Sulistyowati Edi Santosa Eko Sulistyono Eny Widajati Evar, Fitrawaty Orista Fahrul Rozy Pohan Faqih Udin Faried Desembardi Ferdinans, Ferdinans Fredinan Yulianda Harisman, Muhammad Ikhsan Hariyadi Herdhata Agusta Heri Syahrian Indah Fatika Sari Iqbal Iqbal Irawan, Riko Irdika Mansur Irianto, M. Yuli Jafarudin, Ahmad Januar Junia Anindya Purwandani, Junia Anindya Kanny, Putri Irene Kansa Dianti Putri Karlin Agustina Karlin Agustina Khalida, Rahmi Kukuh Nugraha Kusuma, Ayu Vandira Candra Lailatul Bahri Ritonga Luh Putu Ratna Sundari M A Chozin M. A. Chozin M. Khais Prayoga M.A. Chozin Mahfudz Mahfudz Manalu, Pinondang Maryati Sari Maya Melati Maya Melati Mia Audina, Mia Muhamad Achmad Chozin Muhamad Achmad Chozin Muhamad Ahmad Chozin Muhamad Syukur Muhammad Ahmad Chozin Muhammad Ahmad Chozin Muhammad Ridwan Muhammad Rusmin Muhammad Syukur Munif Ghulamahdi Muntoyib, Junaidi Mursyalatiyus, isnainy dinul Murtilaksono, dan Kukuh Mutaqin, Enjen Zaenal Nabila Sholiha Neshi Claudia Ramadhanti Norul Dewi Susanti Novianti, Shilfa Oktavian, Aldi Pasaribu, Pesta Maria Hotnauli Polansky, Seken Putri, Prabawati Hyunita Rianto, Dwi Fajar Rizqullah, Ramadaniarto Roelly Ainul Yaqin Roudho, Zahrotur Rusdi, Achmad Sarjono, Arif Sarjono, Arif Seken Polansky Sholiha, Nabila Fairuz Simangunsong, Yosua Pratama Sinaga, Intan Lorenza Sintho Wahyuning Ardie Soekisman Tjitrosemito Sofyan Zaman Sudradjat Sugeng Sudiatso Sugiyanta Sujinah Sujinah Sukmawati, Riska Sulistiani, Ade Irma Supijatno Suryana Suwarto Suwarto Suwitono, Bayu Tri Sugiarto, Anto Trisnani Yuda Fitri Trisnani Yuda Fitri Vitria Puspitasari Rahadi Wahyu Utomo Wahyudi Wahyudi Yonny Koesmaryono Yosua Pratama Simangunsong Yursida Yursida Yursida Yursida Yusak, . Zarwazi, Lalu Muhamad