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Al Ikhsan Amri
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Agriculture, Biological Sciences & Forestry

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Journal : Jurnal Agro Teknologi Tropika

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Pemberian Kompos Tandan Kosong Kelapa Sawit dan Zat Pengatur Tumbuh Alami terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guinensis Jacq.) di Pembibitan Utama Menggunakan Medium Subsoil Ultisol Amri, Al Ikhsan
Jurnal Agro Teknologi Tropika Vol 3, No 2 (2014)
Publisher : Jurnal Agro Teknologi Tropika

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This research aim was to study the effects of applying oil palm empty fruit bunches compost and natural growthregulator substances on growth palm oil ( Elaeis guineensis Jacq.). This research was conducted in screen house ofAgricultural Faculty, University of Riau, from December 2012-April 2013. Subsoil ultisol was taken from Kulim RegionPekanbaru. Soil chemical properties of ultisol material was analyzed at Soil Laboratory of Soil Research Bogor. Thisresearch used a split plot design as the main plot was natural growth regulator substances and subplot was oil palmempty fruit bunches compost consists of 3 treatments in the main plot and 4 in the subplot. The treatments in the mainplot: Z0 = without natural growth regulator, Z1 = natural growth regulator substances using banana corm, Z2 =natural growth regulator subtances using bamboo shoots. The treatments in subplot: T0 = without oil palm empty fruitbunches compost, T1 = 20 tons per ha of oil palm empty fruit bunches of compos, T2 = 30 tons per ha of oil palm emptyfruit bunches of compos, T3 = 40 ton per ha of oil palm empty fruit bunches of compos. The result showed that applicationof oil palm empty fruit bunches compost 20 tons per ha, without or with natural growth regulator subtances increasedplant height, number of leaves and diameter hump.
Pengaruh Perubahan Penggunaan Lahan Hutan Alam Menjadi Hutan Tanaman Industri (HTI) Acacia crassicarpa terhadap Beberapa Sifat Fisika dan Sifat Kimia Tanah Gambut Amri, Al Ikhsan; Nelvia, Nelvia; Wardati, Wardati; Khotimah, Khusnul; Noviria, Ade
Jurnal Agro Teknologi Tropika Vol 4, No 1 (2015)
Publisher : Jurnal Agro Teknologi Tropika

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The purpose of this research was determine how the effect of lands use change from natural forest to plantationforest Acacia crassicarpa on some physical properties and chemical properties of peat soil. The research conducted inthe PT. BBHA, Bukit Batu Subdistrict, Bengkalis Regency, and Laboratory of Soil Science Agriculture Faculty, RiauUniversity. The research was conducted by survey method, with purposive sampling. Data was analysed by descriptiveand graphics model. The parameters were particle size distribution, bulk density, particle density, porosity, pH, organiccarbon, total nitrogen, total phosphor and base cations (K, Ca, Mg and Na). The result of research show that land usechange from natural forest to plantation forest Acacia crassicarpa was increasing total of smalles particle, bulk density,and particle density, while the porosity decreases. Then the increasing were pH, total nitrogen, total phosphor, and basecations K, Ca, Mg, Na is fluctuative, whereas for organic carbon was linierly. The longer time of land use change wasincreasing the decomposition of peat soil, which improves the physical properties and chemical properties of peat soil.
Co-Authors ', Ardian ', Armaini ', Wardati ', wawan Adven Mario Sihombing Alfian Alfian Anas, Anwar Ardianta Ginting Ardianto, Kiki Armain Armain Arnis En Yulia Dedi Hayadi Eka Safitri1 Erlida Ariani Erwin Febriyandra Irawan Dede Saputra, Irawan Dede Jamili, M Joehari Juniadi Naibaho Jurnawaty sjofjan Khairul Sholeh, Khairul khusnul khotimah M. Amrul Khoiri Mardani Pradipta Mazmur Rahmat Amindo Purba, Mazmur Rahmat Amindo Muhamad Tahrun Murniati Murniati Nanda Dwi Pramana, Nanda Dwi Nelvia ' Nelvia Nelvia Novendra, Gilang Noviria, Ade Pernando Nababan Rachmad Ryadi Reza Rizki Sampoerno ' Sarigiar Tono Sutri Handayani Syafrinal Syafrinal Wardati, Wardati Wawan ' Wawan2 ' Yulistia Septari Zulham Zulham