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mariani br sembiring
university of sumatera utara
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Klasifikasi Tanah Pada Satuan Lahan Volkan Tua di Gunung Sipiso-piso dan Gunung Simbolon Sumatera Utara Dea Walucky Saragih; Mukhlis Mukhlis; mariani br sembiring
Jurnal Agroekoteknologi Vol 5, No 4 (2017)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (292.453 KB) | DOI: 10.32734/jaet.v5i4.16439

Abstract

Penelitian survei bertujuan untuk mengklasifikasikan tanah pada satuan lahan volkan tua di Sumatera Utara menurut klasifikasi taksonomi tanah dan klasifikasi nasional. Penelitian dilakukan pada dua areal lahan, yaitu kaki lereng Gunung Sipiso-piso dan Gunung Simbolon. Pada masing-masing areal dibuat profil pewakil untuk diamati morfologinya kemudian diambil sampel tanah dari setiap horizon untuk dianalisis bulk densiti, tekstur tanah, C-organik, Retensi P,  Al dan Fe ekstrak oksalat di Laboratorium Riset dan Teknologi, Fakultas Pertanian, Universitas Sumatera Utara. Hasil penelitian menunjukkan bahwa tanah pada satuan lahan volkan tua yang berada di kaki lereng Gunung Sipiso-piso memiliki BD > 0.9 g/cm-3, retensi P > 85%, kadar Alo +1/2 Feo > 2%, sehingga diklasifikasikan menurut taksonomi tanah (Ultic Hapludand) dan klasifikasi nasional (Andosol Distrik). Sedangkan tanah pada lahan volkan tua yang terdapat di kaki lereng Gunung Simbolon memiliki  BD > 0.9 g/cm-3, retensi P < 85%, kadar Alo +1/2 Feo < 2%, sehingga diklasifikasikan berdasarkan taksonomi tanah (Andic Dystrudept) dan klasifikasi nasional (Kambisol Kromik).
Evaluasi Kesesuaian Lahan Tanaman Padi Sawah (Oryza sativa L.) Di Desa Sukorejo Kecamatan Sei Balai Kabupaten Batubara deyu zahraini putri; purba marpaung; mariani br sembiring
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (638.29 KB) | DOI: 10.32734/jaet.v6i2, April.17992

Abstract

Land evaluation is estimation process of the potensial land for a variety of alternative uses optimally by considering physical and socioeconomic factors as well as conservation of environmental resources for sustainable use. This study aimed to evaluate the suitability of  rice paddy (Oryza sativa L.) in Village Sukorejo Subdistric Sei Balai Distric Batubara. It can be obtained 2 (two) Land Mapping Unit (SPL) which is determined base on the overlay result from the map of topography, map of soil types and map of land use with scale of 1 : 20.000 that is Sawah Ultisol SPL 1A and 1B and Sawah Inceptisol SPL 2A and 2B. This study used survey method and the class assessment of land suitability was done by matching based on criteria astablished by Peraturan Mentri Pertanian No.79 (2013). The results showed that the land suitability classes of actual rice paddy (Oryza sativa L.) in SPL 1A, 1B and 2A is Marginally Suitable/ S3nrxs by a nutrient retention and sulfidic material barrier factor while in SPL 2B is Marginally Suitable/S3nr by a nutrient retention barrier factor. The land suitability calasses potential rice paddy (Oryza sativa L.) for l SPL (1A, 1B dan 2A) is suitable/ S2nrxs by a nutrient retention and sulfidic material barrier factor while in SPL 2B is suitable/ S2nr by a nutrient retention barrier factor. Keywords : Land suitability, Lowland rice, Rice paddy
Co-Authors Dea Walucky Saragih deyu zahraini putri Mukhlis Mukhlis Purba Marpaung