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All Journal Journal of Tropical Soils JURNAL AGROHITA Jurnal Hilirisasi IPTEKS (JHI) Journal of Applied Agricultural Science and Technology
Armansyah Armansyah
Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Public Health Veterinary Other

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Effect of Land Use Change on Soil Physico-chemical Characteristics in Sungai Batang, east part of Maninjau Caldera Yulnafatmawita Yulnafatmawita; Refdinal Refdinal; Armansyah Armansyah; Zainal Abdul Haris
JOURNAL OF TROPICAL SOILS Vol 27, No 2: May 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i2.79-87

Abstract

Land-use change from the forest to others will affect the soil’s physicochemical properties. The research was conducted to identify soil physicochemical properties affected by land-use change in Sungai Batang, the east-south part of Maninjau caldera. The research used a survey method from which soil was sampled at four different types of land use (forest, bushland, mixed garden, and paddy soil) at 0-30 cm depth with three replicates. The results show that the soil in Sungai Batang was still developing. It was indicated by coarse soil texture (clay loam to sandy clay loam). Land-use change from the forest to other uses has altered some soil physicochemical properties. It increased soil bulk density and decreased total soil porosity, permeability rate, SOM content, and  total-N. However, there was an increase in  soil characteristics, especially soil P-availability, CEC, Ca-  and Na-exchangeable . While the soil pH  (H2O), K-and Mg-exchangeable stayed the same. In general, land use changed from forest to other use, mostly farming land degraded physicochemical characteristics of the soil derived from volcanic materials in Sungai Batang. That was mainly due to the decrease in SOM content.
TEKNOLOGI PENGOLAHAN PUPUK ORGANIK PADA KELOMPOK TANI SUNGKAI PERMAI DI KELURAHAN LAMBUNG BUKIK KOTA PADANG Benni Satria; Syahyan Raesi; Afrima Sari; Armansyah Armansyah; Indra Dwipa; Aprisal Aprisal; Ferry Lismanto Syaiful; Ardi Ardi
Jurnal Hilirisasi IPTEKS Vol 3 No 3 (2020)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v3i3.438

Abstract

The people of Lambung Bukik Village, Pauh Subdistrict, Padang City, mostly work on horticultural crops, secondary crops, raising cattle, and chickens. Agriculture in this area uses mostly inorganic fertilizers and organic fertilizers. This results in the high need for farmers for inorganic fertilizers. The activity's objectives are 1. to obtain an organic production module by utilizing horticultural agricultural waste, secondary crops, and cow dung, 2. analyzing the organic fertilizer content, 3). obtain organic fertilizer containing high nutrient elements and 4. obtain organic fertilizer derived from organic fertilized waste material with EM4, MOL, and Trichoderma sp. Activities were carried out in the UPPO Sungkai Permai farming community through organic fertilizer processing technology. Participants in this activity are members of farmer groups, community leaders, and accompanied by Andalas University students. The activity methods applied are 1. training and demonstration on the manufacture of organic fertilizers from agricultural waste and cow dung using EM-4, Mol, Trichoderma sp, 2. demonstration of making local microorganisms (MOL), 3. analyzing nutrient elements of organic fertilizers, and 4. a demonstration plot of organic spinach and water spinach using organic fertilizers from three different organizer depupuk, namely: EM4, fruit mole, and a mixture of both. The results achieved were: organic fertilizer processing methods, and quality organic fertilizers with the highest average nutrient content of fruit mole samples (N = 1,823%, P = 1,717%, K = 0.757%, Mg = 0.742, C. organic 27,400 , Organic matter = 47.237, and the highest C / N = 39.645%. The demonstration plot of organic fertilizer from three organic fertilizer samples obtained that the use of fruit moles as organizer depupuk resulted in the best growth and yield of spinach and kale wet weight.
PENGARUH PEMBERIAN PUPUK MAGNESIUM DAN FUNGI MIKORIZA ARBUSKULA (FMA) TERHADAP FASE VEGETATIF TANAMAN JAGUNG MANIS (Zea Mayz Saccharata Sturt) PADA TANAH ULTISOL Arif Amrizal; Warnita Warnita; Armansyah Armansyah
Jurnal AGROHITA: Jurnal Agroteknologi Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan Vol 6, No 1 (2021): Jurnal AGROHITA
Publisher : Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jap.v6i1.3245

Abstract

Tanah ultisol merupakan tanah yang miskin unsur hara luasannya mencapai 25% dari luasan daratan indonesia, magnesium termasuk salah satu unsur hara makro yang ketersediaan bagi tanaman relatif susah. Fungi Mikoriza Arbuskula (FMA) merupakan organisme yang mampu hidup ditanah marginal dan mampu bersimbiosis dengan baik dengan berbagai jenis akar tanaman salah satunya jagung manis, aplikasi magnesium dan FMA diharapkan jadi solusi untuk pengoptimalan fungsi lahan budidaya jagung manis pada tanah ultisol. Tujuan penelitian untuk melihat respon tanaman jagung manis terhadap pemberian pupuk magnesium dengan FMA, melihat interaksi pupuk magnesium dengan FMA pada fase vegetative tanaman jagung manis. Rancangan percobaan menggunakan Rancangan Acak Lengkap (RAL) faktorial, yang terdiri dari Faktor pertama (A) pemberian pupuk magnesium dan faktor kedua (M) pemberian  mikoriza, didapat 8 kombinasi percobaan dengan 3 ulangan sehingga didapat 24 satuan percobaan. Faktor pertama (A) pemberian pupuk Magnesium dengan 4 taraf perlakuan (A1) 2 0 kg/ha, (A2) 30 kg/ha, (A3) 40 kg/ha, dan (A4) 50 kg/ha. Faktor kedua (M) pemberian mikoriza dengan 2 taraf perlakuan. Tanpa mikoriza (M₀) dan Pemberian micoriza (M1). Pengamatan Tinggi tanaman, Diameter batang, Luas Daun, Laju Asimilasi Bersih  (LAB), Laju Tumbuh Relatif  (LTR), Umur keluar bunga jantan dan umur keluar bunga betina, Pengamatan FMA. Hasil penelitian pada fase vegetatif tanaman jagung manis seperti tinggi tanaman, luas daun dan LAB tanaman tidak memberikan pengaruh pada tanaman, sedangkan diameter batang, LTR dan infeksi akar menunjukkan perbedaan pada pemberian FMA, pemberian pupuk Mg tidak berbeda nyata. Umur muncul bunga pemberian FMA tidak berbeda nyata sedangkan pemberian pupuk Mg ada perbedaan.
Identification of the Diversity of Indigenous Arbuscular Mycorriza Fungi in the Rhizosphere of Coffee (Coffea Sp) Arabica Solok Radjo West Sumatera Armansyah Armansyah; Eti Farda Husin; Indra Dwipa; Faly Sandika; Reski Marbeni Putra
Journal of Applied Agricultural Science and Technology Vol. 6 No. 2 (2022): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.19 KB) | DOI: 10.55043/jaast.v6i2.39

Abstract

Arbuscular mycorrhizal fungi are a group of fungi that can be symbiotic with many types of plants. Soil factors and plant species, affect the diversity of arbuscular mycorrhizal fungi. Likewise, differences in location and rhizosphere cause differences in the diversity of species and populations of AMF. In addition, not all AMF have the same morphological and physiological characteristics, therefore it is very important to know their identity. Coffee is a plant that has economic value and the potential for symbiosis with AMF. This study aimed to identify AMF in the rhizosphere of four varieties of Solok Radjo coffee plants in the Aia Cold area of ​​the Gumanti Valley, Solok, West Sumatra. Meanwhile, the stages of this research include: collecting and collecting data in the field, determining the location of the soil sample, analyzing soil properties in the laboratory, isolating AMF spores, and identifying AMF spores morphologically. The results showed that the diversity of AMF spores was found in 3 genera, namely Glomus sp., Acaulospora sp., and Gigaspora sp. The Kartika coffee variety has a higher AMF spore population than Sigararutang, Andongsari and Gayo.
Co-Authors Afrima Sari Aprisal Aprisal, Aprisal Ardi Ardi Arif Amrizal Benni Satria Eti Farda Husin Faly Sandika Ferry Lismanto Syaiful Indra Dwipa Refdinal Refdinal Reski Marbeni Putra Syahyan Raesi Warnita Warnita Yulnafatmawita Yulnafatmawita Zainal Abdul Haris