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All Journal Jurnal Penelitian Saintek Agrikultura Journal of Degraded and Mining Lands Management Kultivasi Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Jurnal Agrotek Indonesia Soil REns Jurnal Agro Wiralodra Composite: Jurnal Ilmu Pertanian

Tualar Simarmata

Universitas Padjadjaran

Author-ID : 2382834

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Veterinary

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Preferensi petani terhadap keragaan padi (Oryza sativa) unggul untuk lahan sawah di wilayah Pangandaran dan Cilacap Muhamad Khais Prayoga; Neni Rostini; Mieke Rochimi Setiawati; Tualar Simarmata; Silke Stoeber; Kustiwa Adinata
Kultivasi Vol 17, No 1 (2018)
Publisher : Universitas Padjadjaran

Abstract The object that conducted in this study is farmer's preferences of rice plant charac-teristics. This study was taken in 3 villages which are village Ciganjeng, village Pamotan, and village Rawaapu. The method used in this study was quantitative design with descriptive analysis. The respondents were 64 rice plant farmers. Measuring instrument used was questionnaire and interview. The result of this study showed that farmers has its own preference for the character of rice plants. Conclution of this study is farmers preferred rice plants which has an average height of plants, wide leaves, leave's surface, leave's angle, and rice straw's type; rice straw that has many branches; strong braches; has a lot rice grains; maturity of rice plants; lenght and wide grains size; non-aromatic; and tender texture. The farmers thought that leave's surface isn't an important character of a rice plants; high of plants, leave's lenght and wide, leave's angle, rice straw's type, grain's lenght and wide, and rice's scent are quite important characteristics; branch's strenght, grain's quantity, and plant's maturity are an important characteristics; resistance to pests, disease resistance, drought resistance, resistance to inundation, salinity resistance, productivity, and rice texture are the most important characteristics. Keywords : preferences, farmer, superior varietiesObjek yang dikaji dalam penilitian ini adalah preferensi petani terhadap karakter tanaman padi. Tempat penelitian dilaksanakan di 3 desa (Desa Ciganjeng, Desa Pamotan dan Desa Rawaapu). Desain penelitian menggunakan desain kuantitatif dengan pendekatan analisis data secara deskriptif. Metode yang diperunakan adalah survey untuk mengumpulkan data dengan mengedarkan kuisioner dan melakukan wawancara. Jumlah petani yang diwawancarai yaitu 64 orang. Hasil dari penelitian ini adalah petani lebih menyukai tanaman padi yang memiliki tinggi tanaman, panjang daun, lebar daun, permukaan daun, sudut daun dan tioe malai yang sedang, cabang malai sekunder yang banyak, ketegaran batang yang kuat, jumlah anakan yang banyak, umur yang genjah, ukuran gabah yang panjang dan lebar, aroma yang tidak wangi, serta tekstur nasi yang pulen. Petani beranggapan bahwa karakter permukaan daun merupakan karakter yang tidak penting; karakter tinggi tanaman, panjang daun, lebar daun, sudut daun, tipe malai, panjnag gabah, lebar gabah, dan aroma tergolong karakter cukup penting; karakter ketegaran batang, jumlah anakan, dan umur tanaman merupakan karekter yang penting; karakter ketahanan terhadap hama, ketahanan terhadap penyakit, ketahanan terhadap kekeringan, ketahanan terhadap genangan, ketahanan terhadap salinitas, produktivitas, dan karakter tekstur nasi merupakan karakter yang sangat penting.Kata kunci : preferensi, petani, varietas unggul

Aplikasi Pupuk Urea, Pupuk Hayati Penambat Nitrogen Dan Amelioran Untuk Meningkatkan pH, C-Organik, Populasi Bakteri Penambat Nitrogen dan Hasil Jagung pada Inceptisols Mieke Rochimi Setiawati; Yudith Silfani; Nadia Nuraniya Kamaluddin; Tualar Simarmata
Soilrens Vol 18, No 2 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i2.32071

Inceptisols is known as one of the less-fertile dryland soil order that is widely used for corn cultivation. Proper type and dose of fertilizer can overcome the plant nutrition deficiency and increase corn yield in Inceptisols. This research aimed to examine whether the application of Urea with different doses, N-fixing biofertilizer and ameliorant can affect pH, Organic C, N-fixing bacteria population, and corn yield. The research was conducted at Balai Pengembangan Benih Hortikultura dan Aneka Tanaman Pasir Banteng, Jatinangor from January to June 2020. This research used Randomized Block Design with 16 treatments. The result showed that application of Urea with different doses, N-fixing biofertilizer and ameliorant significantly affected N-fixing bacteria population and corncob weight. 40% dose of Urea and 2 ton ha-1 ameliorant gave the best increase in corncob weight per plant of Bisi-2 by 345 g.

Efek Metoda Aplikasi dan Dosis Pupuk Hayati Penambat N terhadap Serapan N, Pertumbuhan dan Hasil Tanaman Padi pada Tanah Salin Toto Bustomi; Betty Natalie Fitriatin; Tualar Simarmata
Soilrens Vol 18, No 2 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i2.32072

Appropriate method and dosage of N-fixing biofertilizer are the keys to success in increasing N uptake, growth and yield of rice plants on saline soils. Research objectives: to obtain the application method and dosage of N-fixing biological fertilizers which gave the best effect on bacterial populations, N content, N uptake, growth (plant height and number of tillers), yield components (number of panicles per clump, number of grains per panicle, percentage of grain. content, and weight of 1000 grains) and rice yields on saline soils. The research was conducted in June-September 2018 at the BPP Cilamaya Wetan Experimental Garden, using a factorial randomized block design with 3 replications. The first factor is the method of applying N-fixing biofertilizers (300, 400, 700 g. ha-1) and the second factor doses of N-fixing fertilizer (500, 1000, 1500 g. ha-1). The results showed that the application of 1500 g.ha-1-fixing biological fertilizer had the best effect on bacterial populations, N levels, N uptake, plant height, number of tillers, number of panicles per clump, number of grains per panicle, percentage of filled grains, and 1000 grain weight, and increased rice yields on saline soil by 29.70%.

Keragaman Mikroflora, Mikrofauna, Kandungan C-organik, dan Total N Tanah Sawah Akibat Aplikasi Azolla dan Pupuk Hayati Mieke Rochimi Setiawati; Pujawati Suryatmana; Tualar Simarmata
Soilrens Vol 18, No 1 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i1.29041

This study was conducted to determine the effect of Azolla pinnata and biofertilizers (Azotobacter and Phosphate Solubilizing Bacteria) on the total microflora, microfauna, organic C, N-total soil, and C/N ratio of soil in lowland rice. The study was carried out in the SPLPP experimental field (Agricultural Research and Development Research Studio) of the Faculty of Agriculture, Padjadjaran University, Jelekong Village, Ciparay, Bandung Regency, West Java, with an altitude of 628 meters above the sea level. The experimental design used was factorial randomized block design consisted of two factors and repeated four times. The first factor was the provision of Azolla with two levels: without Azolla and 3 tons ha-1 of Azolla pinnata. The second factor was the provision of biofertilizer with three levels, without biofertilizer, 5 L ha-1 biofertilizer, and 10 L ha-1 biofertilizer. The results showed that there was an interaction between A. pinnata with biofertilizer on the increase in the total bacterial population. Total fungus, microfauna (nematodes), and soils N-total content did not increase with the addition of Azolla or biofertilizers. Independently A. pinnata increased soil C-organic matter while biofertilizer 10 L ha-1 increased the total population of actinomycetes.

Inokulan Rhizobakteri untuk Meningkatkan Kelimpahan Mikroba Tanah, Klorofil dan Pertumbuhan Bibit Kelapa Sawit pada Inceptisols Tualar Simarmata; Maria Eprina Kusumo Wardani; Eka Dwi Anggrainy
Soilrens Vol 18, No 2 (2020)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v18i2.32073

Inorganic fertilizers are used intensively as the main source of essential nutrients to boost oil palms productivity. However, it’s also to contribute to degradation of organic matter and soil health. The research aimed to investigate the effect of rhizobacteria inoculant to increase the beneficial soil microbes (RNF= rhizobacteria nitrogen fixer and rhizobacteria phosphate solubilizes = RPS) in rhizobiome and the growth oil palm seedling was conducted from January to May 2020 on Inceptisols. The experiment was arranged as randomized block design, consisted of 9 treatments (control, 3, 6, 9, 12 kg ha-1 of RNF, and its combination with RPS and provided with 3 replicans. Observed respond were total bacteria, RNF, the seedling growth and chlorophyll content. The experimental results revealed that rhizobacterial inoculation had a significant effect on RNF, RPS, total bacterial population, and the chlorophyll content of oil palm seedlings. The abundance of soils microbes during the trial were rellative high (>108 CFU g-1). Inoculation of 3 kg ha-1 of rhizobacteria (RNF and RPS) increased the population of RNF to 4.02 x 108 CFU g-1. The highest of chlorophyll content (56.96 CCI) was obtained by the application 12 kg ha-1 of RNF, followed by applying of 3 kg and 9 kg of inoculant consortia (RFN + RPS), but not different significantly with the control. Results finding confirms that the application rhizocateria inoculant (RNF and its combination with RPS) could use to enhance the abundance of microbes in rhizobiome for supporting the growth of oil palm seedling

Nitrogen-fixing bacteria and organic ameliorant for corn growth and yield increment in Inceptisols Reginawanti Hindersah; Nadia Nuraniya Kamaluddin; Shabrina Rahma Fauzia; Mieke Rochimi Setiawati; Tualar Simarmata
Journal of Degraded and Mining Lands Management Vol 9, No 3 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.093.3445

Since Inceptisols, in general, contain low soil organic matter and major plant nutrients, inorganic fertilizers are commonly added during corn cultivation. In order to maintain long-term soil health and fertility, bioferilizer and organic ameliorant application are suggested. The addition of nitrogen (N)-fixing bacteria (NFB) can benefit plant growth through the supply of available nitrogen for plant uptake. Organic ameliorants can enhance soil chemical and biological properties. A field trial had been performed to observe the effect of biofertilizer and organic ameliorant on corn growth, N status in soil and plant, and the yield and wasteof corn. The experiment was designed in a Completely Randomized Block Design that consisted of four treatments and six replications. The treatments were 1.2 kg/ha N-fixing mixed biofertilizer, 2 t/ha organic ameliorant, and mixtures of biofertilizer and ameliorant. Control plants received neither biofertilizer nor ameliorant. The experiment results found that N-fixing biofertilizer and ameliorant increased plant height, fully-developed leaves number, soil reaction and N uptake of corn compared to the control. The total-N content was slightly increased after NFB inoculation with and without amelioration over other treatments. Plots treated with biofertilizer and ameliorant produced a higher grain weight compared to the control treatment. Corn wastes such as empty corn cob and husk weight were increased in plants treated with biofertilizer, ameliorant and a combination of both. This study suggested that the combined application of biofertilizer and ameliorant produced 66% more grain yield and 84 % more cob and husk waste compared to untreated plants.

BIOLOGICAL TEST AND CHARACTERIZATION OF PHOSPHATE RHIZOBACTERIAL ISOLATE USING CORN PLANT INDICATOR Tessa Novianty Putri Asova; Anggi Jingga; Mieke R. Setiawati; Tualar Simarmata
Jurnal Penelitian Saintek Vol 23, No 1 (2018): April 2018
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Phosphate rhizobacteria (PR) plays an important role in increasing solubility and availability of phosphate for plants. The experiment to investigate the capabilities of PR isolates was conducted from March to August 2017 in laboratories and greenhouse. Bioassay test using the Murphy media and maize as indicator was arranged as a randomized block design consist of six treatments (one control and five isolates PR) and provided with five replications. The plant height, root length, and dry weigth of plant were measured at 14 days. The dissolved P and enzyme phosphatase production were measured using Bray I and Eivzy Tabatai methods. The result shows that the PR isolates had relatively different ability to dissolve of P, produce of phosphatase and to increase the plant growth. J1M and J5H isolates has produced of phosphatase enzyme 63.25 μg pNP/g/h and 62.84 μg pNP/g/h, soluble phosphate 66.24 ppm and 75.42 ppm. J1M and J5H isolates were able to produce dry weights of plants 728 mg and 660 mg (about 60.3% and 45.3% higher than control).UJI HAYATI DAN KARAKTERISASI ISOLAT RHIZOBAKTERI FOSFAT DENGAN INDIKATOR TANAMAN JAGUNGRhizobakteri fosfat (RF) berperan penting dalam meningkatkan kelarutan dan ketersediaan fosfat bagi tanaman. Eksperimen untuk mengetahui kemampuan isolat RF dengan menggunakan tanaman jagung sebagai indikator telah dilakukan sejak bulan Maret sampai Agustus 2017 di laboratorium dan rumah kaca. Uji hayati (bioassay) menggunakan media Murphy dan tanaman jagung sebagai indikator dilakukan dengan memanfaatkan rancangan acak kelompok yang terdiri dari enam perlakuan (satu kontrol dan 5 isolat RF) dan diberi ulangan sebanyak lima kali. Panjang akar, tinggi tanaman, dan bobot kering tanaman diukur setelah 14 hari. Produksi enzim fosfatase dan P-terlarut diamati dengan menggunakan metoda Eivzy Tabatai dan Bray I. Hasil penelitian menunjukkan bahwa isolat RF memilki kemampuan yang relatif berbeda dalam melarutkan P, produksi fosfatase dan meningkatkan pertumbuhan tanaman. Isolat J1M dan J5H menghasilkan enzim fosfatase sebesar 63,25μg pNP/g/h dan 62,84 μg pNP/g/h dan P-terlarut sebesar 66,24 ppm dan 75,42 ppm. Isolat J1M dan J5H mampu menghasilkan bobot kering tanaman sekitar 728 mg dan 660 mg (sekitar 60,3% dan 45,3% lebih tinggi dibandingkan dengan kontrol).

ANALISIS KINERJA AGRIBISNIS PADI ORGANIK PETANI BINAAN JAMTANI DI KABUPATEN PANGANDARAN Mai Fernando Nainggolan; Iwan Setiawan; Trisna Insan Noor; Tualar Simarmata; Kustiwa Adinata; Silke Stoeber
Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Vol 8, No 1 (2022): Januari 2022
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ma.v8i1.5926

Although organic farming, one of which is organic rice, many benefits and positive effects have been mentioned, if we observe the development, it has not yet reached its maximum production. The purpose of this study was to describe the performance of the agribusiness subsystem in the development of organic rice agribusiness for farmers. This research was carried out in several farmer groups assisted by JAMTANI spread across the villages of Cimurutu, Paledah, and Padaherang who are organic rice farmers in the area. The sampling technique used in this research is using cluster random sampling technique with the number of respondents as many as 120 farmers who are fostered by JAMTANI. Performance was analyzed using descriptive statistics. Research results Based on the agribusiness system approach consisting of input supply subsystems, cultivation, harvest and postharvest handling, marketing and support, it shows that the performance of organic rice agribusiness on JAMTANI partner farmers in Pangandaran district obtained adequate performance. Changes in production when viewed from the number of farmers, as many as 120 people have experienced changes in the amount of production.

Efektivitas Pelatihan Analisis Sederhana Kesehatan Tanah Sawah Melalui Metode Sekolah Lapang Petani Muhamad Khais Prayoga; Diyan Herdiantoro; Roby I Syarifain; Mieke R Setiawati; Kustiwa Adinata; Silke Stoeber; Tualar Simarmata
Jurnal Agro Wiralodra Vol. 4 No. 2 (2021): Jurnal Agro Wiralodra
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/agrowiralodra.v4i2.69

Intrusi air laut dan meluapnya sungai akibat curah hujan yang tinggi karena dampak perubahan iklim menyebakan menurunya tingkat kesehatan tanah sawah. Petani perlu dilatih untuk menganalisis kesehatan tanah sawah secara sederhana melalui sekolah lapang. Pelatihan analisis sederhana kesehatan tanah sawah melalui metode sekolah lapang petani perlu diuji untuk mengetahui efektivitasnya dalam meningkatkan kemampuan petani. Penelitian dilaksanakan terhadap 17 petani yang berasal dari Desa Paledah dan Desa Ciganjeng (Kecamatan Padaherang, Kabupaten Pangandaran, Provinsi Jawa Barat) serta dari Desa Rawaapu dan Desa Cimurutu (Kecamatan Patimuan Kabupaten Cilacap, Provinsi Jawa Tengah). Alat ukur dalam penelitian ini adalah kuisioner pretest dan post test. Analisis yang digunakan adalah analisis statistik non parametrik Chi-Square. Besar kecilnya peningkatan keilmuan petani berdasarkan nilai pretest dan posttest dianalisis menggunakan uji n-gain. Hasil penelitian ini menunjukkan bahwa terdapat perbedaan yang nyata antara nilai rata-rata postest (65,88) dengan nilai rata-rata pretest (54,12) dan terjadi peningkatan sebanyak 21,74%. Berdasarkan nilai gain faktor, peningkatan keilmuan petani tergolong sedang. Petani peserta pelatihan memberikan sikap yang positif terhadap kegiatan pelatihan dimana petani seluruhnya setuju dan sangat setuju bahwa materi sesuai dengan kebutuhan petani, pemateri menyampaikan materi dengan baik, materi yang diberikan mudah diterapkan, ketersediaan sarana dan prasarana sangat menunjang kegiatan, pelatihan berlangsung kondusif, pelatihan yang diberikan bermanfaat untuk petani, dan materi pelatihan akan coba diaplikasikan secara mandiri.

INOKULASI FUNGI MIKORIZA ARBUSKULA (FMA) MENINGKATKAN POPULASI BAKTERI PELARUT FOSFAT DAN SERAPAN HARA P TANAMAN CABAI (Capsicum Annuum L.) PADA INCEPTISOLS Muhammad Aldino Rahman; Anne Nurbaity; Tualar Simarmata; Baiq Azizah Haryantini
Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech) Vol 4 No 1 (2019): Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech)
Publisher : Faculty of Agriculture University of Singaperbangsa Karawang

Fungi mikoriza arbuskula (FMA) memegang peranan penting dalam produktivitas cabai melalui peningkatan kualitas tanah. Eksperimen untuk mengetahui pengaruh inokulan FMA populasi bakteri pelarut fosfat dan serapan P tanaman cabai pada Inceptisols dilaksanakan di rumah plastik dengan ketinggian ± 752 MDPL, Jatinangor. Percobaan menggunakan Rancangan Acak Kelompok yang terdiri atas empat perlakuan (kontrol, 100, 200, 300 spora FMA isolat dari tanah hutan alami). Hasil penelitian menunjukkan bahwa terdapat pengaruh nyata inokulan FMA terhadap populasi bakteri pelarut fosfat dan serapan P. Pemberian inokulan FMA isolat dengan kepadatan 100 spora/tanaman lebih efisien dalam meningkatkan populasi perlarut fosfat dan serapan P dibandingkan perlakuan lain

Co-Authors Anggi Jingga Anggi Jingga Anne Nurbaity Baiq Azizah Haryantini Betty Natalie Fitriatin Diyan Herdiantoro Diyan Herdiyantoro Eka Dwi Anggrainy Fiqriah Hanum Khumairah Ibnu Rizki Perdana Jihan Fitria Meilani Kustiwa Adinata Kustiwa Adinata Kustiwa Adinata Mai Fernando Nainggolan Maria Eprina Kusumo Wardani Mieke R Setiawati Mieke R. Setiawati Mieke Rochimi Setiawati Muhamad Khais Prayoga Muhamad Khais Prayoga Muhammad Aldino Rahman Nabila Syifa Ariani Nadia Nuraniya Kamaluddin Neni Rostini Pujawati Suryatmana Reginawanti Hindersah Roby I Syarifain SETIAWAN, IWAN Shabrina Rahma Fauzia Silke Stoeber Silke Stoeber Tessa Novianty Putri Asova Toto Bustomi Trisna Insan Noor Yudith Silfani

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