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

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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

Abstract

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

Abstract

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.
Peranan Mikoriza VA, Rhizobium dan Asam Humat pada Pertumbuhan dan Kadar Hara Beberapa Spesies Legum Penutup Tanah M. Zulman Harja Utama; Sudirman Yahya
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 (731.237 KB) | DOI: 10.24831/jai.v31i3.1474

Abstract

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