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REKLAMASI TANAH SALIN MENGGUNAKAN BAHAN ORGANIK DAN PENCUCIAN DI DESA SIDONDO I, KECAMATAN SIGI BIROMARU, KABUPATEN SIGI Hangga Parnianto; Uswah Hasanah; Danang Widjajanto
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 10 No 1 (2022): Februari
Publisher : Fakultas Pertanian, Universitas Tadulako

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Penelitian ini dilakukan pada bulan Desember sampai April 2020 di Laboratorium Unit Ilmu Tanah Fakultas Pertanian Universitas Tadulako. Penelitian ini bertujuan untuk menilai potensi pupuk organik dan pencucian guna memperbaiki salinitas tanah pada penggunaan lahan di Desa Sidondo I, Kecamatan Sigi Biromaru, Kabupaten Sigi. Prinsip dasar pengelolaan salinitas tanah adalah untuk menurunkan kadar garam dan nilai derajat salinitas (pH) dengan menggunakan penambahan bahan organik dengan beberapa dosis (tanpa bahan organik, 30 ton/ha, dan 90 ton/ha) dan pencucian dengan 3 kali ulangan. Hasil penelitian menunjukan bahwa bahan organik 30 ton/ha dan 90 ton/ha dengan 3 kali pencucian dapat menurunkan pH larutan dari 10 ke 8. Kadar Ca larutan menurun dengan meningkatnya bahan organik demikian pada tanah dengan kadar Na. Hasil analisis pH hasil pencucian cenderung menurun dari tertinggi 10,20 menjadi 9,78. Hasil penelitian ini menunjukan bahan organik dan pencucian belum mampu menurunkan pH tanah ke nilai yang optimal bagi pertumbuhan tanaman terutama tanaman-tanaman yang tidak toleran terhadap kadar garam tinggi.
LAJU INFILTRASI DAN BEBERAPA SIFAT TANAH PADA BERBAGAI PENGGUNAAN LAHAN DI DESA DADAKITAN KECAMATAN BAOLAN KABUPATEN TOLI-TOLI Andi Idham M; Uswah Hasanah; syamsul Syukur
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 10 No 6 (2022): Desember
Publisher : Fakultas Pertanian, Universitas Tadulako

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The present study was designed to investigate the infiltration rate and various soil properties of different land uses in Dakitan village, Baolan sub district, Toli-Toli district. The study was carried out over a period of fifteen months, starting from March 2020 and ending in June 2021. The research involved the determination of infiltration rate, soil texture, soil bulk density, soil porosity, field capacity water content, organic matter, and aggregate stability in four types of land use, namely mixed plantations, a clove plantation, and a secondary forest, all of which had varying slope angles. The results of the study indicate that the constant infiltration rate across several land uses was ranging from 15.59-180.62 mm h-1, which were classified as slow to fast. The soil texture was predominantly sandy clay, while the organic matter was classified as high to very high (4.03-6.02%). The soil bulk density was found to be heavy (1.24 –1.65 g cm-1), and the porosity ranged from 26.37-42.98%. The field capacity water content was found to range from 21.93-43.16%, and the aggregate stability was predominantly unstable.
PENGARUH PEMBERIAN PUPUK ORGANIK TERHADAP SIFAT FISIKA TANAH DAN HASILTANAMAN TOMAT (Lycopersicum esculentum Mill.)DI DESA BULUPOUNTU KECAMATAN SIGI BIROMARU KABUPATEN SIGI Fira Fermila Lawenga; Uswah Hasanah; Danang Widjajanto
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 3 No 5 (2015): Oktober
Publisher : Fakultas Pertanian, Universitas Tadulako

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Penelitian ini bertujuanuntuk menentukan pengaruh pemberian pupuk kandang sapi terhadap sifat fisika tanahdanpertumbuhantanaman tomat. Penelitian ini mulai pada bulan September sampai bulan Desember 2014di Desa Bulupountu, Kecamatan Sigi Biromaru,Kabupaten Sigi, Provinsi Sulawesi Tengah. Penelitian ini dilakukanmenggunakan Rancangan Acak Kelompok (RAK) dengan pemberian pupuk kandang sapi terdiri dari 3 taraf perlakuan, tanpa pupuk (kontrol)15 Mg ha-1,30 Mg ha-1 dan 45 Mg ha-1. Setiap perlakuan diulang sebanyak 3 kali sehingga terdapat 12 plot. Hasil penelitian menunjukkan bahwa pemberian berbagai dosis pupuk kandang sapi berpengaruh nyata terhadap variabel pengamatan tinggi dan jumlah buah tanaman tomat. Penambahan bahan organik dapat memperbaiki sifat fisika tanah terutama pada variabel pengamatan bobot isi tanah, porositas dan permeabilitas. Dosis pupuk kandang sapi yang baik digunakan untuk pertumbuhan dan hasil tanaman tomat ialah 30 Mg ha-1.Penggunaan pupuk kandang sapi secara berlebihan dapat menurunkan pertumbuhan dan hasil tanaman tomat.
Koalesen Agregat Tanah dalam Hubungannya dengan Laju Pembasahan dan Polivinil Alkohol Uswah Hasanah
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 17 No 3 (2010): Desember
Publisher : Universitas Tadulako

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Laju pembasahan dan tingkat pembasahan disamping bahan organik dipercaya mempengaruhi proses awal terjadinya koalesen agregat tanah yang dapat meningkatkan kekuatan tanah. Penelitian ini dirancang untuk memisahkan kedua pengaruh itu sehingga dapat dilakukan perbaikan pengelolaan yang dapat dievaluasi dalam rangka meningkatkan efisiensinya yaitu apakah pengelolaan harus berfokus pada perbaikan teknik irigasi atau meningkatkan bahan organik, atau keduanya. Polivinil alkohol (PVA) yang merupakan salah satu senyawa kimia yang dapat meningkatkan stabilitas agregat diberikan secara terkontrol dengan menggunakan sprayer terhadap agregat tanah berdiameter 0,5-2 mm. Sampel tanah bertekstur kasar dan halus ditempatkan dalam ring dan laju pembasahan air (1, 10 dan 100 mm/jam) menggunakan sistem tetesan yang dikontrol oleh pompa peristaltik. Sampel tanah kemudian dibasahi hingga mendekati jenuh atau hisapan 10 kPa selama 24 jam, kemudian didrainase dengan menggunakan plat tekanan pada hisapan 100 kPa. Pengukuran tahanan penetrometer diukur dengan menggunakan penetrometer kerucut berdiameter 2 mm, sedangkan kekuatan tarik diukur dengan alat uji tidak langsung Brazilian. Tahanan penetrometer lebih rendah pada sampel tanah yang mendapat perlakuan PVA sebelum pembasahan dan pada sampel tanah yang yang mendapat hisapan lebih tinggi (10 kPa) setelah pembasahan awal. Pengaruh tersebut semakin menonjol pada tanah bertekstur kasar. Pada kedua jenis tekstur tanah, kekuatan tarik meningkat dengan semakin tingginya laju pembasahan dan tingkat pembasahan (lebih besar pada kondisi hampir jenuh). Laju pembasahan cenderung lebih penting dalam mendorong proses terjadinya koalesen agregat dari pada tingkat pembasahan.
LAND RESOURCE MANAGEMENT STRATEGY FOR THE SUSTAINABILITY OF THE UPPER WATERSHED OF PALU (Case Study of Miu Sub Watershed in Sigi Regency) Danang Widjajanto; Uswah Hasanah
AGROLAND The Agricultural Sciences Journal (e-Journal) Vol 6 No 1 (2019): June
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agroland.v6i1.9

Abstract

Population growth and regional expansion has increased land needs for settlement, agriculture, and trade in the Palu watershed causing much pressure on the upper part of the watershed where Miu watershed is situated The general aim of the research was to generate strategy for sustainable land resources management in the Miu watershed as a buffer zone of the Lore-Lindu National Park. The objective of the research were 1) to predict soil erosion and sedimentation, 2) to analyze the feasibility of dominant farming systems, 3) to analyze rural development, and 4) to analyze community preference on land use priority. The erosion and sedimentation, and feasibility research was conducted through soil survey and socio-economic approach. The rural development index was determined using secondary data taken from related institution such as demography, regional structure and infra structure, and industrial-trade condition. The preferential analysis of land use priority for 10 years ahead was done using focus group discussion with farmer community leaders. The soil erosion rate was light - heavy whilst the soil erosion index was low - very high estimated by the USLE. The relationship between the river debit and suspended load at the upper and lower part of the watershed was found to follow the equation of Y= 0.001X1.366 (R2= 0.65), and Y = 0.001 X1.409 (R2 = 0.66), respectively. Three villages included Pakuli, Pandere, and Bolapapu had high index of rural development whereas low index was found in Lonca, Bangga and Tangkulowi. The high-low order of land use priority was agro forestry, cacao monoculture, fresh water fishery, wetland rice, ruminant grazing, mixed culture of rice, soy bean, cassava and maize, and poultry farming.
The Effect of Soil Water Content and Gamal Bokashi on Vegetative Growth of Sweet Corn (Zea Mays Saccarata) Nur Afifah Usman; Anthon Monde; Uswah Hasanah
AGROLAND The Agricultural Sciences Journal (e-Journal) Vol 4 No 2 (2017): December
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agroland.v4i2.294

Abstract

This research aimed to get the moisture content and dose of bokashi gamal accordance with the vegetative growth of the sweet corn plant (Zea mays saccarata) and the benefit of this study was to provide the information on the effects of agriculture on groundwater levels and bokashi gamal to plants. The research design using factorial completely randomized design. The first factor bokashi gliricidia with 3 levels of treatment was without bokashi gamal (B0), bokashi gamal 20 t.ha-1(B20), and bokashi gamal 40 t.ha-1 (B40). The second factor levels with 3 levels of water treatments, namely, water content 50% field capacity (K50), the water content of 75% field capacity (K75), and water content 100% of field capacity (K100). Treatment was repeated three times to obtain 27 experimental units. Data analyzed by analysis of variance according to the design used and conducted a further test using Honestly Significant Difference (HSD). The results showed the interaction between water content and Bokashi Gamal significantly affected the vegetative growth of the plants sweet corn. The water content of 50-75% and gamal bokashi 20-40 t.ha-1gave the best to plant vegetative growth of sweet corn.
The Effect of Soilaggregate Size and P Dosage On Amf Spores Number In Shorgum (Sorghum bicolor L.) Samsu Samsu; Henry N Barus; Uswah Hasanah
AGROLAND The Agricultural Sciences Journal (e-Journal) Vol 4 No 1 (2017): June
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agroland.v4i1.298

Abstract

Mycorrhiza is a biological agent to help fertility of soil and plants. Application of mycorrhiza on the land in the form of inoculum is often used in agricultural land in the name of quality of inoculum that also influenced by the content of existing spores. One of them is growing medium. This study aimed to study the effect of soil aggregate size and P dosage on the number of mycorrhizal spores in sorghum plants. The research design used was Randomized Block Design consisting of 2 factors. First factor was soil aggregate size(μm) which consisted of 4 treatments: U1 = < 2000, U2 = 500 - 1000, U3 = 200 - 500, U4 = < 200, and second factor was P dosage: 100 mg/kg and 300mg/kg. Each treatment combination was repeated 3 times so that there were 24 units of experimental unit. Observation parameters included the percentage of the infected root, number of spores, plant height and dry weight of the plant. The research was conducted in Greenhouse and Agronomy Laboratory of Agricultural Faculty of Tadulako University Palu. The various sizes of soil aggregates do not affect the amount of arbuscular mycorrhizal spores in sorghum plants. P 100 mg/kg or f P 300 mg/kg dosage used do not address the effect of the mycorrhizal spores. There is no interaction between soil aggregate size and P dosage to the amount of mycorrhizal spores in sorghum plants.
EFFECT OF COMPOST DOSES ON SOIL RESILIENCE IN PALU VALLEY Danang Widjajanto; Uswah Hasanah; Imam Wahyudi; St Sukmawati; Sufyan Sufyan
AGROLAND The Agricultural Sciences Journal (e-Journal) Vol 7 No 2 (2020): December
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agroland.v7i2.623

Abstract

Applying organic matter to the soil surface is an effective effort to increase soil resilience in the Palu valley, which is classified as low. This study aimed to determine: 1) the effect of several doses of compost on the physico-chemical properties of the soil, 2) the correlation between the percentage of organic carbon and total nitrogen in the soil to several physico-chemical properties of the soil. The research was based on a randomized block design in a greenhouse of the Faculty of Agriculture, Tadulako University, Palu. Compost uses raw materials for plantain stems (Musa textilia) and leaves of Gamal (Gliricidia sepium). The compost doses used in the experiment consisted of 0%, 1%, 2%, 3%, 4%, and 5% of the weight of air-dry soil, respectively. The treatment was repeated three times. The results showed that compost application significantly affected soil content weight, total porosity, saturated hydraulic conductivity, field capacity moisture content, percentage of organic carbon, total nitrogen, and cation exchange capacity. The correlation test results showed a powerful relationship between the percentage of organic carbon or total soil nitrogen to other soil physico-chemical properties observed in the experiment.
PREDIKSI EROSI DAERAH ALIRAN SUNGAI POBOYA Leonidas Paarrang; Uswah Hasanah; Anthon Monde
Mitra Sains Vol 4 No 1 (2016): Januari
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v4i1.164

Abstract

Land rehabilitation in Poboya Watershed should be done on the actual land erosion value in other to avoid intensive land degradation. This research has been conducted to determine and map erosion hazard level. The erosion hazard level was determinate by using USLE (Universal Soil Lost Equation) formula. The result of experiment showed that the low erosion hazard level in study area 371,2 Ha (5,5%), medium 3.483,4 ha (51,9%), high 11,8 ha (0,2%), and very high 2.848,8 ha (42,4%). In general, land with erosion hazard level of very high is located in middle watershed. The high value of erosion in Poboya Watershed area mainly due to the land cover factor and topography. Tolerable erosion in Poboya watershed 371,1 ha (5,51%) and intolerable 6.344 ha (94,4%). Land area Poboya Watershed 6.715,06 ha and total erosion 2.643.587,48 ton.yr-1 while tolerable erosion 73.259,97 ton.yr-1.
Pengaruh Bokashi Limbah Sayuran Pasar Terhadap Serapan N Dan Hasil Tanaman Buah Tomat Serli Jayanti; Saiful Darman; Uswah Hasanah
Mitra Sains Vol 7 No 1 (2019): Januari
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v7i1.225

Abstract

The results showed that there was an interaction between bokashi and vegetable waste fertilizer on N-soil parameters of 1.02%, plant height of 47.25 cm, number of fruits per plant by 4 pieces, fruit weight per plant of 84.04 g, and fruit diameter per plant is 19.96 mm. This study is an experimental study of Randomized Block Design (RBD) consisting of 6 repeated treatments. a = 0 g / polybag, b = 25 g / polybag (5 tons ha-1), c = 75 g / polybag (15 tons ha-1, d = 125 g / polybag (25 tons ha-1), e = 175 g / polybag (35 tons ha-1), f = 225 g / polybag (45 tons ha-1), g = 275 g / polybag (55 tons ha-1). The purpose of this study was to determine the effect of vegetable waste bokashi on fertilizer on N uptake and tomato fruit yield. The thinking framework is a decrease in tomato production. To overcome this we need balanced fertilization in both organic and inorganic fertilizers. This research was conducted in Donggala Kodi Village. Then it did not significantly affect the parameters of N Absorption plant, wet weight and dry weight of plants.
Co-Authors A. Lanyala, Andi Aghir A.A. Ketut Agung Cahyawan W Abd. Rahim Thaha Abd. Rahman 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