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asmarlaili sahar hanafiah
university of sumatera utara
Agriculture, Biological Sciences & Forestry

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Response on Growth of Oil Palm Seedling (Elaeis guineensis Jacq.) by Adding Dolomite, Fertilizer and Sulphate Reduction Bacteria on Acid Sulphate Soils in Green House Muhammad Ramadhan; Asmarlaili Sahar Hanafiah; Hardy Guchi
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (314.889 KB) | DOI: 10.32734/jaet.v6i3, Juli.18085

Abstract

Soil fertility is an important aspect of increasing the growth of oil palm seedling. This research aimed to determine the effect of dolomite, fertilizer and sulphate reduction bacteria (SRB) on the growth of oil palm seedlings. This research was conducted at green house used acid sulphate soils. The research used Randomized Block Design with 3 treatments : Dolomite (without dolomite, dolomite 15,80 tonnes/ha, dolomite 31,60 tonnes/ha), fertilizers (without fertilizer, fertilizer 2,5 grams/seedling, fertilizer 5 grams/seedling) and sulphate reduction bacteria (without SRB and given SRB) with 3 replications. The results showed that the application of dolomite (15,8 and 31,6 tonnes/ha) increased soil pH (4.90 and 4.78) statistically significant. Application of sulphate reduction bacteria increased soil pH (4,59) statistically significant. Application of fertilizers (2,5 and 5 grams/seedling) increased the plant height (40,19 and 44,59 cm) and stem diameter (25,33 and 26,90 mm) statistically significant. Application of dolomite and sulphate reduction bacteria inoculum could increase the plant height and stem diameter of oil palm seedlings more than control. The application of dolomite, fertilizers and also sulphate reduction bacteria inoculum could increase the plant height and stem diameter of oil palm seedlings more than control. The best treatment was dolomite 31,60 tonnes/ha, fertilizer 5 grams/seedling and sulphate reduction bacteria inoculum. Application of dolomite could be replaced with sulphate reduction bacteria inoculum. Keywords :   Acid Sulphate Soil, Dolomite, Fertilizer, Soil Fertility, Sulphate Reduction Bacteria
Potential Test of Sulphate Reducing Bacteria (SRB) To Changes the Acidity of Sulphate Acid Soil and Corn Growth with Different Water Content in Green House yudi sudarno sihombing; Asmarlaili Sahar Hanafiah; Mariani Sembiring
Jurnal Agroekoteknologi Vol 6, No 3, Juli (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (328.759 KB) | DOI: 10.32734/jaet.v6i3, Juli.18099

Abstract

This study aimed to determine the potential for a superior sulphate reducing bacteria (SRB) from  tested on acid sulfate soil with different water content. The research activities carried out in the Laboratory of Soil Biology and Green House of Faculty Agriculture, University of North Sumatra. The research used Randomized Block Design with 2 treatments : SRB isolate (control, LK4, LK6, TSM4, TSM 3, AP4,  AP3, LK4+TSM3, LK4+AP4, LK4+AP3, LK6+TSM3, LK6+AP4, LK6+AP3, TSM4+TSM3, TSM4+AP4, TSM4+AP3) and water condition (100% field capacity and 110% field capacity). The results shown application of  isolate LK4+AP4 with water condition 110% field capacity decreased the soil sulphate content (27,38 ppm) significantly after week 6.  Application of  isolate LK4+AP3 with water condition 110% field capacity increase soil pH (5,58) significantly after week 6. Application of  isolate LK4 with water condition 110% field capacity increase the plant growth (140 cm; 25,74 g) significantly after week 6. The best treatment was application isolate LK4 with water condition 110% field capacity (RBS population 2,5x108; soil sulphate content  29,10ppm; soil acidity 4,78; plant height 140cm; plant weight 25,74gr).   Keywords       : pH, Soil Sulphate Content, Sulphate Reducing Bacteria, Water Condittion.
The Potential Test of Vascular Arbuskula Mychorryza (VAM) Type on The Growth of Corn Plant ( Zea mays L.) on Inceptisol Astri Hartaty Simanungkalit; Asmarlaili Sahar Hanafiah; Tengku Sabrina
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.179 KB) | DOI: 10.32734/jaet.v7i1,Jan.20236

Abstract

Vascular Arbuskula Mycorrhiza (VAM) is a fungus that symbiosis with plant roots. Mycorrhiza can be found in almost 80% of plant species. This research aimed to examine the potential of Vascular Arbuskula Mycorrhiza isolated from several plant rhizosphere on the growth of corn plant (Zea mays L.) and nutrient uptake.Mycorrhizal isolates was collected from roots of wild ginger, bangle, turmeric and oil palm crop planted on Spodosol. Experimental design used Randomized Block Design with 8 treatments, that were the various of mycorrhizal isolates and 3 replications.This research was conducted at green house and laboratory. Potency of mycorrhizal isolates was tested on corn plants on Inceptisol. The results showed that the application of mycorrhizal isolates from oil palm’s roots planted on Spodosol increased corn’s growth (plant height, stem diameter, number of leaves and root dry weight) higher than growth on control and on other mycorrhizal treatments. The best treatment increased the NPK nutrient uptake was mycorrhizal isolates from oil palm’s roots planted on Spodosol.  Keywords : corn,inceptisol,mycorrhiza inoculums,oil palm,spices Potency of mycorrhizal isolates was tested on corn plants on Inceptisol. The results showed that the application of mycorrhizal isolates from oil palm’s roots planted on Spodosol increased corn’s growth (plant height, stem diameter, number of leaves and root dry weight) higher than growth on control and on other mycorrhizal treatments. The best treatment increased the NPK nutrient uptake was mycorrhizal isolates from oil palm’s roots planted on Spodosol.
Co-Authors Astri Hartaty Simanungkalit Hamidah Hanum hardy guchi Mariani sembiring Muhammad Ramadhan Perdana Abdi poltak mangatur tua sirait Riandi Syahputra Tengku Sabrina yudi sudarno sihombing