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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  
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.
Uji Pertumbuhan dan Produksi beberapa Varietas Padi dengan System Rice of Intensification pada Titik Tanam Berbeda Utama, M. Zulman Harja; Misradelfita, Misradelfita; Ernita, Milda
Jurnal Embrio Vol 2 No 01 (2009): Jurnal embrio
Publisher : Fakultas Pertanian Universitas Tamansiswa Padang

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Abstract

Experiment was aimed to investigate the test growth and production of several rice variety with system rice of intensification on distance difference. Experiment was conducted in farmer land of Jorong Kampung Jambu Kenagarian Bayua, Tanjung Raya of Agam District, from April to August 2008. Experiment was conducted using random completed design of two factors. First factor was four applications of rice variety, mean while second factor was two distance difference. The results revealed that an addition of combination variety Cisadane with distance 10 cm give high success rate to growth and production, with yield 8.6 ton/ha
Respons Jagung Manis (Zea mays Saccharata Sturt) Terhadap Aplikasi Trichokompos Tandan Kosong Kelapa Sawit Pada Ultisol Haryoko, Widodo; Diyanti, Afri Rona; Zain, Harun; Sunadi, Sunadi; Thesiwati, Aslan Sari; Utama, M. Zulman Harja
Jurnal Sains Agro Vol 10, No 1 (2025): Jurnal Sains Agro
Publisher : Universitas Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36355/jsa.v10i1.1735

Abstract

Percobaan bertujuan mengetahui respon varietas jagung manis (Zea mays Saccharata Sturt.) terhadap Trichokompos tandan kosong kelapa sawit pada ultisol. Percobaan dilakukan di Lagan Hilir Punggasan, Kecamatan Linggo Sari Baganti, Kabupaten Pesisir Selatan dari 2024-2025.  Percobaan dilakukan menggunakan rancangan acak kelompok faktorial dengan faktor pertama adalah varietas jagung manis yakni varietas paragon, bonanza dan super sweet dan faktor kedua adalah Trichokompos tandan kosong kelapa sawit 4 dosis yakni 0, 5, 10 dan 15 ton ha-1.  Hasil percobaan menunjukan respon varietas jagung manis terhadap STrichokompos tandan kosong kelapa sawit. Respon jagung varietas Paragon, Bonanza, dan Super Sweet memperlihatkan keragaman pertumbuhan, keragaman komponen hasil dan hasil pada ultisol.  Dosis Trichokompos TKKS yang tepat terhadap varietas Paragon dan Bonanza adalah 5 ton ha-1, dan  dosis trichokompos TKKS terhadap varietas Super Sweet adalah 10 ton ha-1 pada ultisol.