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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Jurnal Sains Agro

M. Zulman Harja Utama

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Author-ID : 408488

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Economics, Econometrics & Finance

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Articles

PENGARUH LUMPUR SUNGAI TERHADAP PERTUMBUHAN DAN HASIL PADI TOLERAN ASAM-ASAM ORGANIK MERACUN GOLONGAN FENOLAT PADA SAWAH GAMBUT Widodo Haryoko; M. Zulman Harja Utama
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 18 No 2 (2020): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v18i2.1390

Experiments on the effect of river sludge on the growth and production of rice tolerant of organic acids poisoning phenolics in peat rice fields were carried out in Kenagarian Ketaping, sub-district Lembah Anai, district Padang Pariaman from October 2015 to January 2016 with the aim of knowing the interaction of river mud and acid-tolerant rice varieties organic acids phenolics in peat soil. The experiment was carried out in a randomized block design with the first factor being 3 river mud that were different locations, namely River Mud located 0.5 km from the estuary, river mud affected by sea water 2.0 km from the estuary, and river mud unaffected by eea water 4 km from the estuary, while the second factor is 3 rice varieties tolerant to organic acids tolerance toxic phenolics and 4 replicatons. The experimental results show that river mud can increase the growth and production of rice tolerant of organic acids to poison phenolics in peat rice fields with the highest production obtained in the Sunting Bungo Durian variety followed by Randah Kuning and then Cisokan Kuning varieties.

RESPON VARIETAS KACANG TANAH (Arachis hypogaea L) TERHADAP PUPUK CAIR LIMBAH INDUSTRI TAHU Haryoko, Widodo; Zahanis, Zahanis; Mutia, Yopa Dwi; Utama, M. Zulman Harja; Nurhafizah, Nurhafizah
Jurnal Sains Agro Vol 7, No 2 (2022): Jurnal Sains Agro
Publisher : Universitas Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36355/jsa.v7i2.893

Penelitian bertujuan untuk mengetahui respon varietas kacang tanah (Arachis hypogaea L) terhadap pupuk cair limbah industri tahu. Percobaan ini telah dilakukan di Kelurahan Kalumbuk, Kecamatan Kuranji Kota Padang, Sumatra Barat dari Maret sampai Juni 2022. Percobaan menggunakan Rancangan Acak Kelompok dengan 2 faktor. Faktor pertama terdiri dari 4 varietas kacang tanah yakni garuda, takar 2, tigo ampek, dan duo. Faktor kedua adalah konsentrasi pupuk cair limbah industri tahu terdiri dari 3 taraf yakni 0, 400 dan 800 ml L-1. Data hasil pengamatan disidik ragam dan diuji F taraf 0,05. Apabila terdapat pengaruh nyata dilanjutkan dengan uji DNMRT. Hasil percobaan menunjukkan bahwa terjadi respon varietas kacang tanah yakni (1) interaksi varietas kacang tanah dan konsentrasi POC limbah tahu berpengaruh nyata terhadap bobot polong kering per plot yaitu 505,33 g dan bobot polong kering per hektar yaitu 3,37 ton, (2) varietas kacang tanah dengan produksi tertinggi didapat pada varietas Takar 2, (3) POC limbah tahu dapat meningkatkan pertumbuhan dan hasil tanaman kacang tanah dengan dosis terbaik 400 ml/L.

Penapisan Varietas Padi Toleran Salinitas pada Lahan Rawa di Kabupaten Pesisir Selatan Utama, M. Zulman Harja; Haryoko, Widodo; Munir, Rafli; Sunadi, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The experiment was aimed to determine the most suitable method for selection of salt-tolerant, and to investigate the agronomic characteristics of salt-tolerant rice variety. Two experiments were conducted to study the tolerance of 18 varieties to salt: 1) in situ screening of salt-tolerant varieties using completely randomized design, and 2) screening of salt-tolerant varieties using factorial experiment (varieties and salinity) with completely randomized design. The experiment showed that screening of rice variety that tolerant and sensitive to salt stress can be determined by comparing root dry weights in salt stressed condition and in unstressed condition, and in term of agronomical aspect, salt stress-tolerant rice showed good growth when planted in the saline field. Key words: Screening, rice, swamp areas and salt stress

Peranan Mikoriza VA, Rhizobium dan Asam Humat pada Pertumbuhan dan Kadar Hara Beberapa Spesies Legum Penutup Tanah Utama, M. Zulman Harja; Yahya, Sudirman
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

The utilization of acid mineral soil often faces the problem of Al toxicity and low available P. The efforts to improve root function and neutralize the effect of high available Al are becoming important for increasing the growth of legumes, particularly as the cover crops at the plantation on acid soil. This research was aimed to find the effect of VA mycorrhyza inoculation, rhizobium, and humic acid on the growth and nutrient content of four different legume species. It was a three factor factorial experiment arranged in a completely randomized design with three replications. The first factor was four legume species: Calopogonium mucunoides, CaloPogonium ceurelieum, Centrosema pubescens and Puerari iavanica the second factor was four different inoculants: none (M0), MVA (M1), rhizobium (Mz), MVA + rhizobium (M3); the third factor was two rates of humic acid application: without (Ho) and with humic acid (H1) The results proved the positive effect of those three factors on the growth of shoot and roots. The responses of root growth on microorganism inoculations and humic acid were different among the legume cover crop species. The role of humic acid was significantly better if there was a synergism between MV A and rhizobium. Key words: Mycorrhyza, Rhizobium, Humic acid, Legume cover crop

The Screening of Aluminum Tolerant Upland Rice Varieties Utama, M. Zulman Harja
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 3 (2010): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The screening of aluminum (Al) tolerant upland rice variety was studied with the objectives were: (1) to determine the most suitable method for selection of aluminum-tolerant upland rice variety and 2) to investigate the agronomic characteristics and the physiological adaptation mechanisms of aluminum-tolerant upland rice variety. The experiment was undertaken in two steps: 1) Screening of upland rice varieties which tolerant to Al stress using completely randomized design, and 2) screening of aluminum-tolerant varieties through factorial experiment with complete randomized design. The experiment showed that 1) screening of upland rice variety that tolerant and sensitive to aluminum stress can be administered by comparing root dry weights in aluminum stressed condition and in unstressed condition, 2) in term of agronomical aspect, aluminum stress-tolerant upland rice shows good growth, and the higher level of aluminum tolerance seems to have emanated from efficient NO3-, NH4+, and Ca2+ metabolism. Upland rice varieties recommended for cultivation in upland mineral acid area include Pandak Putih, Mulut Harimau, Kuning, Rantau Mudiak Kelabu, Towuti, and Sedane Tinggi.Keywords: aluminum, Ca2+, NH4+, NO3-, uptake

Mekanisme Fisiologi Toleransi Cekaman Aluminium Spesies Legum Penutup Tanah terhadap Metabolisme Nitrat (NO3 - ), Amonium (NH4 + ), dan Nitrit (N02 - ) Utama, M. Zulman Harja
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 2 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The experiment was aimed to investigate the Al-tolerant mechanisms physiology of legume cover crops species related to metabolism NO3 - , NH4 + , and N02 - . The results revealed that an addition of Al had less effect on Al-tolerant species compared to Al-sensitive in term of reduction in NO3 - , NH4 + and N02 - uptake. The reduction in Nitrit of the Al-tolerant species under Al treatment was less than in Al-sensitive species. The results suggested that in tolerant legume cover crops species, the higher level of Al tolerance seems to have emanated from efficient NO3 - metabolism and the higher N02 - to NH4 + .

Co-Authors , Sunadi Mutia, Yopa Dwi Nurhafizah Nurhafizah Rafli Munir Sudirman Yahya Widodo Haryoko Zahanis Zahanis

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