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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences JURNAL TEKNOLOGI LINGKUNGAN AGROTEKBIS Jurnal Kelautan Tropis AGROLAND: The Agricultural Sciences Journal Jurnal Agrotech Journal of Tropical Crop Science Jurnal Penelitian Kehutanan Wallacea AGROTEKBIS: Jurnal Ilmu Pertanian AGROLAND: The Agricultural Sciences Journal
Aiyen Tjoa
Program Studi Agroteknologi Fakultas Pertanian Universitas Tadulako, Palu
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science

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Journal : AGROTEKBIS

 1 
UJI PENGGUNAAN BAHAN ORGANIK SUMBER BERBEDA TERHADAP PERTUMBUHAN BIBIT NANGKA (Artocarpus heteropyllus Lamk) Nainggolan, Desmariana; Noer, Abd Hamid; Tjoa, Aiyen
AGROTEKBIS Vol 1, No 4 (2013)
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Municipal garbage and seaweed are organic materials which can be soil ameliorant (additive) important to improve soil chemical and physics. Different organic material sources given to the soil will make plants growing on it respond differently except the seeds. This study aim at testing the response given by organic matter from the city garbage and seaweed on marginal soils (with low pH areas, clayey texture and low nutrient content) on the jackfruit seed growth. The research design used is random complete design with 6 treatments and 4 replications. The treatments tested were B0 = (control-without ameliorant), B1 = Soil + (100 mg N, 60 mg P, 100 mg K, 60 mg Mg, Ca 60 mg kg -1 soil)., B2 = Soil + (50 mg N, 30 mg P, 50 mg K, 30 mg Mg, 30 Ca mg kg -1 soil) + organic materials. Sea weed., B3 = Soil + organic materials. Seaweed., B4 = Soil + (50 mg N, 30 mg P, 50 mg K, 30 mg Mg, 30 mg Ca kg -1 soil) + organic materials. Municipal garbage., B5 = Soil + organic materials. municipal garbage. The results showed that the provision of municipal garbage organic and seaweed significantly affect the parameters of leaf width, however, sea weed organic materials has a more significant effect than  municipal garbage.
PENGARUH BAHAN ORGANIK PADA TAILING EMAS TERHADAP PERTUMBUHAN DAN TRANSLOKASI MERKURI (Hg) PADA SAWI (Brassica parachinensis L.) DAN TOMAT (Lycopersicum esculentum Mill.) Ainun, Nur; Tjoa, Aiyen; Samudin, Sakka
AGROTEKBIS Vol 1, No 5 (2013)
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Pertambangan emas yang menggunakan metode arsenik dan merkuri dalam proses pemurnian akan selalu menimbulkan dampak lingkungan. Sisa tanah hasil penambangan (tailing) akan dibuang atau didepositkan, dan akan menimbulkan masalah lingkungan dan juga mencemari pangan. Tanaman yang ditumbuhkan pada lahan terkontaminasi dapat bersifat adaptif terhadap kontaminan tetapi tidak mentranslokasikan, ataupun bersifat adaptif dan mentranslokasikan dengan dan tanpa translokasi kontaminan. Penelitian ini bertujuan untuk menguji sifat adaptif/toleran Sawi dan Tomat jika ditanam pada tanah tercemar merkuri dan juga kemampuan translokasi merkuri. Total 6 perlakuan dengan 3 kali pengulangan ditentukan untuk setiap jenis tanaman supaya dapat menarik kesimpulan penelitian, seperti perlakuan tanah tailing saja, tanah tailing campur pupuk (100 mg N, 50 mg P, dan 50 mg K),  tanah tailing dengan kotoran ayam, tanah tailing dengan campuran rumput laut, tanah tailing dengan dosis pupuk rendah (50 mg N, 25 mg P dan 25 mg K), dan tanah non tailing yang dicampur pupuk N,P,K dosis rendah. Untuk sawi dan tomat digunakan masing-masing 18 unit percobaan untuk tomat.  Dosis rumput laut maupun kotoran ayam adalah 5g kering angin kg-1 tanah. Statistik mengunakan analisa Anova 1 arah dengan uji lanjut BNJ. Sawi yang tumbuh pada tanah tailing terkontaminasi 85.700 ηg g-1 mentranslokasikan Hg hingga 17.477 ηg g-1 dan hanya 6.281 ηg g-1 pada tomat.  Efisiensi Sawi sangat tinggi untuk membersihkan kontaminan Hg, minimal 68 kali lebih efisien dari tomat. Pemberian N, P, K pada tanah tailing berkontribusi negatif pada pertumbuhan tanaman berbeda dengan pemberian bahan organik asal kotoran ayam yang memberikan kontribusi positif pada pertumbuhan sawi maupun tomat, juga menurunkan  penyerapan Hg.
PENGARUH PUPUK ORGANIK MIKROBA RUMPUN BAMBU TERHADAP PERTUMBUHAN TANAMAN CABAI (Capsicum annuum L.) Ferawati, Chotimah Fajar; Barus, Henry N.; Tjoa, Aiyen
AGROTEKBIS Vol 2, No 3 (2014)
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Penelitian ini bertujuan untuk mengetahui pengaruh berbagai dosis pupuk organik mikroba rumpun bambu terhadap pertumbuhan tanaman cabai kriting(Capsicum annuum). Penelitian dilaksanakan disekitar area kampusUntad, Palu. Sulawesi Tengah dan dilaksanakan di Laboratorium Hama dan Penyakit Tumbuhan, dari bulan April - Juli 2013, Penelitian dilaksanakan dalam bentuk percobaan yang disusun berdasarkan rancangan acak kelompok (RAK) yang terdiri dari enam perlakuan dengan dosis pemberian pupuk organik mikroba rumpun bambu yang berbeda  kedalam 5 kg  tanah per poliybag yaitu:0 g  (Kontrol),25 g,  50 g, 75 g, 100 g dan 125 g.  Berdasarkan jumlah perlakuan yang dicobakan diatas maka terdapat 6 perlakuan dan diulang sebanyak 5 kali sehingga terdapat 30 unit percobaan. Hasil penelitian menunjukkan bahwa pemberian berbagai dosis pupuk organic mikroba rumpun bamboo dapat memberikan pengaruh yang positif terhadap pertumbuhan tanaman cabai. Pada setiap perlakuan yang diberikan ternyata dosis  75 g  menghasilkan tinggi tanaman, jumlah daun, jumlah cabang, berat segar dan berat kering tajuk lebih baik dibandingkan dengan perlakuan dosis yang lain.
RESPON VARIETAS TANAMAN SAWI (Brassica juncea L.) TERHADAP LARUTAN HARA (AB MIX) PADA SISTEM HIDROPONIK Istiqamah, Annisa; Rauf, Abdul; Aiyen, Aiyen
AGROTEKBIS Vol 4, No 4 (2016)
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The research aimed to discover the response of growth and production of two mustard varieties on substrate hydroponic system and the concentration of AB Mix solution on each variety. The research was conducted in January to March 2016, in Green House, Faculty of Agriculture, Tadulako University by using Split Plot Design. The main plot was Tosakan and Shinta varieties, while the subplot was concentration of AB Mix nutrient solution, such as 4 ml/L of water, 5 ml/L of water, 6 ml/L of water and 7 ml/L of water. The research shows that nutrient solution is very good generally to support the production of mustard on a hydroponic substrate. Tosakan variety has better response than Shinta variety. Varieties and concentration of nutrion solution have interaction, the concentration of nutrient solution that was good for Tosakan variety is 6 ml/L, it was represented  by the leafs number were more in all plants age, the its leafs were wider, canopy and root (fresh and dry)  were heavier, while Shinta variety of the concentration of nutrient solution 4-7 ml / L resulted the production were not significantly different. Key Words: Mustard, nutrient solution, substrate hydroponic.
KONSENTRASI FOSFOR PADA BERBAGAI UMUR FISIOLOGI DAUN KAKAO (Theobroma cacao L.) KEBUN RAKYAT Priyanto, Iklan; Tjoa, Aiyen; Kadekoh, Indrianto
AGROTEKBIS Vol 6, No 5 (2018)
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This study aimed to determine P concentration at various leaf physiological age and the availability of soil P on smallholder cocoa plantations. Cacao leaf samples were taken by purposive sampling at two villages namely Bobo and Maku. The soil samples were taken at 0-30 cm layer from the cacao crown area of similar trees where the leaves were taken. The data obtained was analyzed using regression test and T test. This study indicated that the soil P concentration in the Bobo and Maku villagesis positively correlated to the P concentration at various leaf physiological age. P concentration of young leaves, adult leaves and senesens leaves in Bobo Village and Maku Village had significantly different values,where the P concentration of young leaves is higher than the adult and senesensleaves. The average P concentration of the cocoa leaf and P available in Bobo and Maku Village had significant differences where the highest leaf P concentration was found in Bobo Village while the highest available P concentration in soil was found in Maku village.
Pseudomonas sp. STRAIN DSMZ 13134 DAN EFEKTIVITASNYA PADA PERTUMBUHAN TANAMAN TOMAT (Lycopersicum Esculentum Mill. ) SERTA SERAPAN P PADA TANAH MASAM . A,Aiyen, Johanis Panggeso, Sumarni
AGROTEKBIS Vol 3, No 3 (2015)
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A quite big amount of tomato for consumption in Indonesia is still from import. There are two strong challenges on tomato production namely low productivity and pest and diseases. The challenge to improve tomato production becomes stronger if it is planted on acid soil. Acid soil is well known to have low pH which influence on the macro nutrients availability such as N and P.  This experiment was aimed to investigate the effectiveness of Pseudomonas sp on tomato growth and P uptake on acid soil. There were 8 treatments tested namely control treatment non-sterilized soil; control sterilized soil;non-sterilized soil + Pseudomonas sp;sterilized soil +Pseudomonas sp;non-sterilized soil + Pseudomonas sp + N, P, K; sterilized soil +Pseudomonas sp + N, P,K; non-sterilized soil + N, P,K ; sterilized soil + N, P, K; and treatment was replicated 3 times. The data was then analyzed with One Way ANOVA and tested by Tukey HSD. Bacteria Pseudomonas sp amendment increased significantly Phosphor (P) concentration, uptake in the shoot of tomato, and triggered the flowering. Amendment of low concentration of N, P, K, together with Pseudomonas sp on acid soil improved significantly tomato growth (plant height, and shoot and root dry biomass), leaf chlorophyll concentration and soil bacteria total colony. The effectiveness of Pseudomonas sp on plant growth was strongly improved when the acid soil microbe diversity was maintained (non-sterilized soil).
PENGARUH PUPUK ORGANIK MIKROBA RUMPUN BAMBU TERHADAP PERTUMBUHAN TANAMAN CABAI (Capsicum annuum L.) Ferawati, Chotimah Fajar; Barus, Henry N.; Tjoa, Aiyen
AGROTEKBIS Vol 2, No 3 (2014)
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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh berbagai dosis pupuk organik mikroba rumpun bambu terhadap pertumbuhan tanaman cabai kriting(Capsicum annuum). Penelitian dilaksanakan disekitar area kampusUntad, Palu. Sulawesi Tengah dan dilaksanakan di Laboratorium Hama dan Penyakit Tumbuhan, dari bulan April - Juli 2013, Penelitian dilaksanakan dalam bentuk percobaan yang disusun berdasarkan rancangan acak kelompok (RAK) yang terdiri dari enam perlakuan dengan dosis pemberian pupuk organik mikroba rumpun bambu yang berbeda  kedalam 5 kg  tanah per poliybag yaitu:0 g  (Kontrol),25 g,  50 g, 75 g, 100 g dan 125 g.  Berdasarkan jumlah perlakuan yang dicobakan diatas maka terdapat 6 perlakuan dan diulang sebanyak 5 kali sehingga terdapat 30 unit percobaan. Hasil penelitian menunjukkan bahwa pemberian berbagai dosis pupuk organic mikroba rumpun bamboo dapat memberikan pengaruh yang positif terhadap pertumbuhan tanaman cabai. Pada setiap perlakuan yang diberikan ternyata dosis  75 g  menghasilkan tinggi tanaman, jumlah daun, jumlah cabang, berat segar dan berat kering tajuk lebih baik dibandingkan dengan perlakuan dosis yang lain.
Co-Authors Abd Hamid Noer Abdul Gani Akhmad Abdul Rauf Abdul Rauf ABDUL RAUF Abdul Rauf Ade Wachjar Agus Sabdono Agus Trianto Agus Trianto Andi Besse Poleuleng Andi Tanra Tellu Annisa Istiqamah Armeilia Ardiva Isabella Chotimah Fajar Ferawati Darren Mark Evans Delianis Pringgenies Desmariana Nainggolan Hartuti Purnaweni Henry Barus Henry N. Barus Herdhata Agusta Ian Singleton Ichwan Madauna Ichwan Madauna Imam Arwin Indrianto Kadeko Intan yana sakti Istiqamah, Annisa Johan Johan Karen Diele Leisa Reclina Christi Lisa Indriani Muhammad Anshar Pasiga Muhammad Anshar Pasigai Muhammad Basir Chio Muhammad Syaifudien Bahry Nur Ainun Nur Edy Nur Taufiq Syamsudin Putra Jaya Taufiq Syamsudin Putra Jaya Ocky Karna Radjasa Oka Yusuf Bahtiar Priyanto, Iklan Ramal Yusuf Rignolda Djamaludin Rignolda Djamaludin Saiful Darman Sakka Samudin Sindy Sella Rukmi Sindy Sella Rukmi Sindy Sella Rukmi Sri Lestari Galagi Sri Lestari Galagi Sri Lintang Artono Subagiyo Subagiyo Subagiyo Subagiyo Sudirman Yahya Thufailah Loulembah, Firyal Amirah Usman Made Wildani Pingkan S. Hamzens Zainuddin Basri