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Journal : Jurnal Floratek

Status fungi mikoriza arbuskula pada berbagai sistem pengelolaan dan umur tanaman kelapa sawit Rossy A. Arman; Fikrinda Fikrinda; Muyassir Muyassir; Ashabul Anhar; N. F. Mardatin; Teti Arabia
Jurnal Floratek Vol 10, No 2 (2015): Oktober 2015
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Status of Arbuscular Mycorrhizal Fungi in Different Farming Systems and Age of Oil PalmABSTRACT. A survey was conducted to determine the Arbuscular Mycorrhiza Fungi (AMF) spore population in rhizosphere soils and its root colonization of oil palm belonging to four age class (2-3months, 2 years, 7 years, and 10 years) at PTPN I Estate plantation and smallholder farmer plantation in Cot Girek Aceh Utara. The methods used were direct isolation. The result showed that there were 14 species of AMF belongs to genus Glomus identified according to spore morphology, eight species at PTPN I and six species at smallholder oil palm plantation. AMF spore density at PTPN I and smallholder oil palm was 17.35 and 17.80 spore per 50g soil, respectively. Oil palm at 7 years old resulted in better AMF population, i.e. 53,7 spore per 50 g Soil. AMF colonization at oil palm rhizospere in both farming systems were low, i.e. 5.4% (PTPN I) and 2.9% (smallholder). Farming system and age of oil palm influenced the AMF population and root colonization, Spore density did not positively correlate with root colonization at different farming systems and age of oil palm.
Karakteristik Tanah Inceptisol yang Disawahkan di Kecamatan Indrapuri Kabupaten Aceh Besar Teti Arabia; Manfarizah Manfarizah; Syakur Syakur; Bambang Irawan
Jurnal Floratek Vol 13, No 1 (2018): April 2018
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

ABSTRACT This study aims to determine the soil characteristics of the Inceptisols which has been converted to paddy soils in Indrapuri Subdistrict, Aceh Besar District, using quantitative descriptive survey method. The results showed the morphological properties of rainfed rice fields and irrigated rice fields characterized by mottles Fe and Mn, in pedon BI1 found in all horizons (Ap, Bdg, Bg, Cg), in BI2 found in the horizon of Bdg, Bg, and BCg, while in the mixed garden (BI3) mottles is found only on the BCx horizon. In the plow pan layer (Bdg) rainfed rice fields and irrigated rice fields have a firm moist consistency, the wet is very sticky, while in the mixed garden is loose and rather sticky. The physical properties of soil at BI1, BI2 are characterized by the highest bulk density in the plow pan layer/Bdg (1.34 and 1.24 g.cm-3), slow and rather slow permeability (0.40 and 1.02 cm.jam-1), with lower porosity (38.01 and 42.15%) than BI3 horizon Bw1 (52.22%). Whereas at BI3 in the Bw1 horizon the lowest bulk density (1.18 g.cm-3), with moderate permeability (4.17 cm.hour-1). Soil chemical properties in BI1, BI2, and BI3 are classified as fertile with pH on Ap horizon 6.33 - 6.89 rather acid - neutral), Al dd is not measurable (very low), and CEC 24 - 36 cmol (+) kg-1 (medium - high). Keywords: soil characteristics, Inceptisols, irrigated paddy soils, paddy soils, mixed garden
PEMBERIAN KALIUM PADA TANAH GAMBUT TERHADAP PRODUKSI, VIABILITAS, DAN VIGOR BENIH BEBERAPA VARIETAS KACANG TANAH T. Sarwanidas; Syamsuddin Syamsuddin; Teti Arabia
Jurnal Floratek Vol 9, No 2 (2014): Oktober 2014
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

The research was aimed at finding out the relationship between potassium dosages on peats soil, yield, seedvigor, and viability of peanut. The experiment was arranged ina completely randomized design (CRD), factorial 5 x 4 with 3 replications. Potassium application was consisted of 5 levels: 0 kg ha-1, 25 kg ha-1, 50 kg ha-1,  75 kg ha-1, and 100 kg ha-1. Variety was consisted of  4 levels :  Naga Umbang, Jerapah, Gajah  and  Bison. Variables observed were yield, seed vigor, and seed viability. Results showed that potassium did not exert significant effects on all variables observed, except  on seed vigor and viability.  Varieties significantly affected yield, where Bison provided the best dried pod weight and Jerapah gave the best seed vigor and viability. No significant interaction existed between varieties and dosage of K fertilizer on the peanut yield, seed vigor, and seed viability.