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Journal : AGROTEKBIS

PENGARUH POLA JARAK TANAM DAN BERBAGAI DOSIS PUPUK NPK TERHADAP PERTUMBUHAN DAN HASIL TANAMAN PADI (Oryza sativa L) suartana, I Ketut; Monde, Anthon; Hasanah, Uswah; Prahastuti, Sri Wahida
AGROTEKBIS Vol 6, No 5 (2018)
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Abstract

This study aimed to determine the effect of plant spacing and various amounts/ratios of NPK fertilizerson the growth and nitrogen uptake of wetland rice (Oryza sativa L.) varieties IR 64. The experimental design was a two-factorial Split Plot in a Randomized Block design. Two plant spacing types as the main plots i.e. symmetrical (s1) and Legowo (s2) were applied.  The various ratiosof NPK fertilzers as the sub plots consisted of 200 kg :75 kg : 50 kg per ha (p1), 250 kg : 100 kg :75 kg per ha (p2), 300 kg :125 kg :100 kg per ha (p3), and 350 kg :150 kg : 125 kg per ha (p4). There were eight combination treatments and each had three replicates.The results showed that the interaction between the plant spacing and the NPK fertilizer significantly affect tiller number, panicles per clump and nitrogen uptake.  Highest tiller number, panicles per clump and nitrogen uptake were found in the s2p4 treatment which were  67.50, 30.50 and 125.60 kg, respectively, whereas lowest ones were in the s1p1 which were 26.50, 13.52 and 51.66 kg, respectively. 
PREDIKSI LAJU EROSI DENGAN METODE UNIVERSAL SOIL LOSS EQUATION (USLE) DI KECAMATAN BANAWA SELATAN Halim, Suhasrianto S; Monde, Anthon; Hasanah, Uswah
AGROTEKBIS Vol 7, No 1 (2019)
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Study has been conducted to determine erosion hazard occurring in South Banawa District. This research was conducted in September - November 2017. This study conducted by field observations and was supported by results of laboratory analysis data.  The rate of erosion was determinad by using the USLE (Universal Soil Loss Equation) method developed by Wischmeier and Smith in 1965. The results showed that the erosion hazard occurring in South Banawa Sub-District is very high with the average erosion per year reaches 1,785 ton ha-1 year-1 (medium). Conservation practices are required for reducing the rate of erosion hazard by the estaldishmeat of terraces, contour planting and replanting at lands with a slope above 15%.
PENGARUH PEMBERIAN PUPUK ORGANIK TERHADAP SIFAT FISIKA TANAH DAN HASILTANAMAN TOMAT (Lycopersicum esculentum Mill.)DI DESA BULUPOUNTU KECAMATAN SIGI BIROMARU KABUPATEN SIGI Uswah Hasanah, Danang Widjajanto, Fira Fermila Lawenga
AGROTEKBIS Vol 3, No 5 (2015)
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This researchaimed to determinethe effect of cow manureaddition to soil physicalpropertiessoil and tomatoplant yield. The research was conducted during September toDecember 2014in BulupountuVillage, Sigi Biromaru Sub District, Sigi Regency, Central Sulawesi Province.This research used a Randomized Block Design (RBD) with cow manurerates as the experimental treatments. The rates included without fertilizer (control), 15Mg ha-1, 30Mg ha-1 and45 Mg ha-1.Eachtreatment was replicated3timesso thatthere were 12experimental plots.Rising the cow manure rate significanltly increased plant height. Similar results also indicated by the number of tomato fruits except at 45 Mg ha-1the fruit number decreased. Applying 30 Mg ha-1 resulted in highest number of tomato fruit. The addition of cow manure significantly improvedsoilphysical properties. Soil bulk density, porosity and permeability declined significantly to only 1,56 g cm-3, 35.45 % and 2,18 cm jam-1 when the rate of cow manure increased to 45 Mg ha-1.
ANALISIS SIFAT FISIK TANAH PADA BEBERAPA PENGGUNAN LAHAN DI DAERAH ALIRAN SUNGAI TAWAELI Haryati, Siti; Hasanah, Uswah; Pagiu, Salapu
AGROTEKBIS Vol 7, No 3 (2019)
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Abstract

This  research cal to determine soil physical properties on some land uses in the watershed (DAS) Tawaeli Palu City. Research carried out in watersheds the Tawaeli 8 units of dryland farming, shrubs, primary forestwith three classes of slopes included0-8%, 8-15% and 15-25%.     soil analysis is done in soil science laboratory, Faculty of Agriculture, tadulako university.         This research was conducted in December 2017 until April 2018. Determination of soil sample Location taken for analyse laboratory determined in the Purposive Sampling as much 8 sample poin. Research results show the physical properties DAS Tawaeli units of dryland farming, shrubs, primary forestwith each slope different, have diverse soil physical properties found in some of     the land uses studied in DAS tawaeli. The soil fraction is dominated by sand and dust with clay texture class, dusty clay and sand clay. have low to very high organic materials, hydraulic conductivitymoderate to moderately fast, weight volume medium to heavy, porosity is very          bad     to bad, field capacity and low to high saturated water content, limits of liquid and medium    to high plastic.
CADANGAN KARBON PADA TIGA MACAM PENGGUNAAN LAHAN DI DESA TUDUA KECAMATAN BUNGKU TENGAH KABUPATEN MOROWALI Latae, Anas; Monde, Anthon; Hasanah, Uswah
AGROTEKBIS Vol 7, No 3 (2019)
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Abstract

Climate change can be reduced by, among other things, suppressing the rate of soil carbon change, absorbing carbon and stored in the form of woody biomass, so the easiest way to increase carbon stocks is to maintain the integrity of natural forests and plant trees on agricultural lands to remain vegetated. This study aims to determine total soil organic matter, C-organic litter and grass on soil surface, species weight and carbon content of trees on three kinds of land use ie forest land, cocoa field and clove land in Tudua Village, Central Bungku District, Morowali District. Analysis of carbon stocks was carried out at the Soil Science Laboratory, Faculty of Agriculture, Tadulako University. This research was conducted in December 2016 until March 2017. The method used in this research is using quadrant method, which is one of the most common data retrieval method used in vegetation analysis. the results showed that the highest total soil organic matter found on forest land is 178,41 t ha-1and 108,76 t ha-1at a depth of 0-20 cm and 21-40 cm. Vegetation of trees on forest land is capable of producing the highest litter and grass with total dry weight 67,60 t ha-1so its carbon stock 31,09 t ha-1. The highest carbon content of tree vegetation is found in forest land 42,1490 t ha-1, while clove land amounts 36,215t ha-1and on a cocoa field of 8,9873 t ha-1.
Co-Authors A. Lanyala, Andi Aghir A.A. Ketut Agung Cahyawan W Abd. Rahim Thaha Abd. Rahman Abda Abda Abdul Rahman Abdul Rahman Ady, Syifa Salsabilla Frisca Amiruddin Amiruddin Anas Latae Andi Aghir A. Lanyala Andi Idham M Anthon Monde Anthon Monde Anthon Monde Anthon Monde Anthon Monde Ardiyansyah Ardiyansyah Ayip Rosidi Danang Widjajanto Danang Widjajanto Danang Widjajanto Danang Widjajanto Danang Widjajanto Danang Widjajanto Danang Widjajanto Danang Widjajanto Danang Widjajanto Darma Wijaya Dinda Puspita Tanjung Efry Kurnia Elijonnahdi Elijonnahdi Elni Elni Farah Aliyah Nafiza Sembiring Fathul Azis Fera Ferdian Suete Fikri Rizalsyah Harahap Fira Fermila Lawenga Fitriani Fitriani Frans Yunus Halim, Suhasrianto S Hangga Parnianto Harahap, Nur Rizky Ardianty Hasyim, Syafria Henry N Barus Henry N Barus I Ketut Suartana . Imam Wahyudi Imelda Saragih Isra Hayati Japar, Karmila Julia Rafika Jumarni Jumarni Jusman Jusman Kabeakan, Jesica Kasmawati Kasmawati Khaira Sitohang, Mutiah Khairatun Hisan Khaliq, Moh. Adnan Latae, Anas Leonidas Paarrang Lisa Lisa, Lisa M. Iqbal M. Iqbal Mengawa, Reni Gloria Mochammad Imron Awalludin Moh Akbar Muh. Subair G Baso Muhammad Anshar Muhammad Basir Muhammad Natsir Muhammad Nuzul Napitupulu Muhammad Rivai Mukmin Mukmin Munardi, Benny Muslimin Muslimin Mutiah Khaira Sihotang Nadlrah Naimi Naimi, Nadlrah Nasution, Ina Zainah Natasya Agustia Sari Novi Safriadi Nst, Salman Nur Afifah Usman Nur Afifah Usman Nur Sakinah Nur Sakinah Nuraisya Nuraisya Nurfadila Nurfadila, Nurfadila Nurfatimah Nurfatimah Pagiu, Salapu Pandji, Susiyadma Rizkia Prahastuti, Sri Wahida Prahastuti, Sri Wahidah Prahastuti, Sri Wahidah Putra, Nurul Pratama Putri Lestari, Putri Putri, Naila Rachmad Zainuddin Rachmat Zainuddin Rahmad Rahmad Rahmat Zainuddin Rahmat Zainuddin, Rahmat Ramlan Ramlan Ramlan, H. Rizky Andika Rois Rosmaniar Gailea Rully Akbar Saiful Darman Saiful Darman Saiful Darman Sakka Samudin Salabi, Adrianus Salapu Pagiu Samsu Samsu Samsu Samsu Sasmita, Maria SATRIYAS ILYAS Serli Jayanti Serli Jayanti, Serli Shahabuddin Saleh Siagian, Mahmud Khoil Shofa Sihotang, Mutiah Khaira Siti Haryati Siti Haryati, Siti Sri Wahidah Prahastuti St Sukmawati Suete, Ferdian Sufyan Sufyan Suhasrianto S Halim Susiyadma Rizkia Pandji Syafria Hasyim syamsul Syukur Syehnaz Sahin Shiddiqi Toana, Moh. Rizqi Chaldun Trisno Trisno Tursina Tursina Ulwan, Mishiyyah Nashih Yosep Soge Patadungan Yosep Soge Pata’dungan Yosep Soge Pata’dungan Yulianti, Hasnia Yunita, Dina Rizky Yuris Asbi Yusriadi Yusriadi Zainuddin Zainuddin Zainuddin, Rachmat Zaitun Zaitun