• Uji Korelasi Antara Debit Aliran Sungai dan Konsentrasi Sedimen Melayang pada Muara Sub DAS Padang di Kota Tebing Tinggi 

  Maulana, Rian Asnul; Lubis, Kemala Sari; Marbun, Posma Mangasi Pintaria (Jurnal Online Agroekoteknologi, 2014)

  Knowing about the problem of Watershed is very important to manage the river environment. One of the indicator to know the watershed problem is concentration of suspend load sediment.This research conduct to observe about ...

• Pertanian Terpadu Sistem Integrasi Ladang, Sawah dan Ternak Itik untuk Mendukung Pertanian Organik 

  Bintang, Bintang; Tobing, M. Cyccu; Marbun, Posma Mangasi Pintaria; Yunilas, Yunilas (Abdimas Talenta, 2016)

  Pengabdian Masyarakat ini telah dilaksanakan bulan Agustus hingga Desember 2016 dengan pembiayaan Bantuan Operasional PTN Non PNBP USU Tahun 2016. Tim Pengabdian USU mempunyai dua mitra, yakni Kelompok Tani Kasih Bersaudara ...

• Penggunaan Beberapa Sumber dan Dosis Aktivator Organik untuk Meningkatkan Laju Dekomposisi Kompos Tandan Kosong Kelapa Sawit 

  Harahap, Rapika Tanti; Sabrina, T.; Marbun, Posma Mangasi Pintaria (Jurnal Online Agroekoteknologi, 2015)

  This research aim to determine the effect of several source and dosage of organic activators on decomposition rate of empty fruit bunch. This study used a factorial randomized block design (RBD) consist of two factors ...

• Pengaruh Varietas dan Bahan Organik yang Berbeda terhadap Bobot 1000 Butir dan Biomassa Padi Sawah IP 400 pada Musim Tanam I 

  Siregar, Daniel; Marbun, Posma Mangasi Pintaria; Marpaung, Purba (Jurnal Online Agroekoteknologi, 2013)

  The objective of this study is to determine the effect of rice varieties and different organic matter of rice fields in one growing season to the 1000 grain weight and paddy rice biomass IP 400. The research was conducted ...

• Pengaruh Varietas dan Bahan Organik terhadap Jumlah Anakan dan Produksi Padi Sawah IP 400 Fase Vegetatif Musim Tanam I 

  Simbolon, Timbul; Marbun, Posma Mangasi Pintaria; Fauzi, Fauzi (Jurnal Online Agroekoteknologi, 2013)

  This research was aimed to determine whether composting organic materials and varieties of rice plants of different IP 400 can reduce the rate of air temperature in rice vegetative phase and also to know which varieties ...

• Pengaruh Pemberian Pupuk Kandang Kambing dan Pupuk ZA terhadap Sifat Kimia Lahan Bekas Sawah dan Produksi Bawang Merah (Allium ascalonicum L.) 

  Sinaga, Andriau Matius; Marbun, Posma Mangasi Pintaria; Lubis, Alida (Jurnal Agroekoteknologi FP USU, 2019)

  The effect of giving goat manure and ZA fertilizer on the chemical properties of paddy soil and red onion production (Allium ascalonicum L.). The purpose was to determine the effect of goat manure and ZA fertilizer on the ...

• Pengaruh Pemberian Limbah Cair Industri Tempe dan Mikoriza terhadap Ketersediaan Hara N dan P Serta Produksi Jagung (Zea mays L.) pada Tanah Inceptisol 

  Hapiza, Muhammad Riza; Sabrina, T.; Marbun, Posma Mangasi Pintaria (Jurnal Online Agroekoteknologi, 2014)

  Tempe industry liquid waste contains several nutrients that can be absorbed by plant roots. Application of mycorrhiza with tempe industry liquid waste to maize simultaneously planted on Inceptisol is expected to increase ...

• Pengaruh Pemberian Kompos Sampah Kota dengan Beberapa Komposisi sebagai Media Tanam terhadap Kadar Logam Pb Tanah dan Tanaman Sawi 

  Ariandy, Fachrul Rozy; Sarifuddin, Sarifuddin; Marbun, Posma Mangasi Pintaria (Jurnal Agroekoteknologi FP USU, 2018)

  The research was aimed to know that accumulation of lead in soil and mustard due to urban waste compost application. The researh was held in gauze house and analyzed in Balai Pengkajian Teknologi Pertanian (BPTP) Laboratory, ...

• Pengaruh Pemberian Kompos Kulit Durian dan Kompos Kulit Kakao pada Ultisol terhadap Beberapa Aspek Kimia Kesuburan Tanah 

  Damanik, Volmer; Musa, Lahuddin; Marbun, Posma Mangasi Pintaria (Jurnal Online Agroekoteknologi, 2013)

  Ultisol is a quite large of soil and have many constraints to be used as agricultural soil. Some of the constraints are: Low level of the organic content, soil acidity, high level of Al saturation and low CEC so that this ...

• Pengaruh Pemberian Bahan Organik Kirinyuh (Eupathorium Odoratum) dan Titonia (Tithonia Diversifolia) Terhadap Sifat Kimia Tanah Ultisol dan Produksi Tanaman Jagung (Zea Mays L.) 

  Napitupulu, Andreas; Marbun, Posma Mangasi Pintaria; Supriadi, Supriadi (Jurnal Agroekoteknologi FP USU, 2018)

  The study was performed in order to investigate the influence of organic matter of kirinyuh (Eupathorium odoratum) and that of organic matter of titonia (Tithonia diversifolia) on some soil chemical properties and maize ...

• Pengaruh Jumlah Bibit dan Sistem Tanam Jajar Legowo yang Dimodifikasi terhadap Pertumbuhan dan Produksi Padi Sawah (Oryza sativa L.) di Kecamatan Medan Tuntungan 

  Tambunan, Stephanie; Marbun, Posma Mangasi Pintaria; Harahap, Erwin (Jurnal Agroekoteknologi FP USU, 2018)

  The research was conducted at rice field in Medan Tuntungan which about ± 25 metres above sea level, begun from March until June 2017 using completly randomized design with two factors, i.e: the number of seeds (1,2,3) and ...

• Pengaruh Berbagai Kadar Air Tanah pada Efektifitas Mikoriza Arbuskular terhadap Pertumbuhan dan Serapan Hara Bibit Karet (Hevea brassiliensis Muell. Arg.) di Rumah Kasa 

  Manurung, Yossi C.; Hanafiah, Asmarlaili S.; Marbun, Posma Mangasi Pintaria (Jurnal Online Agroekoteknologi, 2015)

  The aim of the research is to study the influence of VAM (vesicular arbuscular mycorrhiza) on the growth and nutrient uptake of rubber stump (Hevea brasiliensis Muell. Arg.) at various soil moisture conditions on nutrient ...

• Pendugaan Tingkatan Bahaya Erosi pada Tanaman Kopi (Coffea Sp.) di Beberapa Kecamatan di Kabupaten Dairi 

  Barus, Ledi Kiswanto; Guchi, Hardy; Marbun, Posma Mangasi Pintaria (Jurnal Online Agroekoteknologi, 2015)

  This study aims to determine the level of danger of erosion on land coffee plant ( Coffea Sp ) in some of the District Dairi . Coffee plants can grow in a variety of soil types and grows well at altitude 800 sd 2000 m ...

• Pendugaan Tingkat Bahaya Erosi pada Hutan dan Lahan Kopi Arabika (Coffea arabica) di Kecamatan Sibolangit 

  Situngkir, Devisna; Jamilah, Jamilah; Marbun, Posma Mangasi Pintaria (Jurnal Pertanian Tropik, 2018)

  Vegetation is one of the factors affecting the actual erosion of a land. The changes in forest land use patterns into coffee lands can increase the erosion hazard. The aim of this research was to get information about ...

• Pemetaan Status Kesuburan Tanah pada Lahan Kopi Arabika di Kecamatan Lumban Julu Kabupaten Toba Samosir 

  Sihombing, Joko Erikson; Marbun, Posma Mangasi Pintaria; Marpaung, Purba (Jurnal Agroekoteknologi FP USU, 2019)

  Lumban Julu subdistrict is one of the producer Arabica coffee in Toba Samosir District. To know the soil fertility status is very important to increase production Arabica coffee. This research aims to map the soil fertility ...

• Pemanfaatan Limbah Lumpur Padat (Sludge) Pabrik Pengolahan Kelapa Sawit sebagai Alternatif Penyediaan Unsur Hara di Tanah Ultisol 

  Pandapotan, Chrisman Daniel; Mukhlis, Mukhlis; Marbun, Posma Mangasi Pintaria (Jurnal Agroekoteknologi FP USU, 2017)

  Utilization of sludge palm oil mills as an alternative supply of nutrients in Ultisol has not optimal. Therefore it needs assessment to utilization of sludge palm oil mills. The experiments was conducted for four months ...

• Klasifikasi Tanah Gambut Topogen yang Dijadikan Sawah dan Dialihfungsikan Menjadi Pertanaman Kopi Arabika dan Hortikultura 

  Sihite, Linda Wati; Marbun, Posma Mangasi Pintaria; Mukhlis, Mukhlis (Jurnal Online Agroekoteknologi, 2013)

  This research is aimed to know the changes classification of topogenous peat soil that increased into paddy field and be converted into arabica coffee (Coffea arabica) and horticulture farm begin from Order class, Sub ...

• Classification, Physicochemical, Soil Fertility, and Relationship to Coffee robusta Yield in Soil Map Unit Selected 

  Marbun, Posma Mangasi Pintaria; Nasution, Zulkifli; Hanum, Hamidah; Karim, Abubakar (Coffee Science, 2020)

  The research was aimed to classify, characterize the physicochemical properties, determine the fertility of the soil, and to obtain the relationship of soil fertility on the character yield for Coffee robusta in the 10 ...

• Klasifikasi Inceptisol pada Ketinggian Tempat yang Berbeda di Kecamatan Lintong Nihuta Kabupaten Hasundutan 

  Ketaren, Samuel Evans; Marbun, Posma Mangasi Pintaria; Marpaung, Purba (Jurnal Online Agroekoteknologi, 2014)

  This research aims to classify inceptisol soil at sub-district of Lintong Ni Huta, Regency of Humbang Hasudutan on the various elevation. On the elevation of 1200-1300, 1300-1400, 1400- 1500, and >1500m on above sea ...

• Kandungan Logam Berat Pb pada Kol dan Tomat di Beberapa Kecamatan Kabupaten Karo 

  Pasaribu, Chyntia Arkesti; Sarifuddin, Sarifuddin; Marbun, Posma Mangasi Pintaria (Jurnal Agroekoteknologi FP USU, 2017)

  This research is aims to find out the content of heavy metals Pb on cabbage leaf and plum tomatoes in three districts of Karo Regency, those are Simpang empat, Kabanjahe and Tiga Panah district. The plant analysis have ...

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