Article Per Year (5 Year)
p-Index From 2019 - 2024
1.235
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Saintek Agrikultura Journal of Tropical Soils Jurnal Agro JURNAL PENGABDIAN KEPADA MASYARAKAT Kultivasi Jurnal Agrotek Indonesia Soil REns Journal of Tropical Mycorrhiza
Anne Nurbaity
Department Of Soil Science Faculty Of Agriculture Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
Serapan nitrogen dan fosfor serta hasil jagung yang dipengaruhi oleh aplikasi pupuk hayati dengan berbagai teknik dan dosis pada tanah Inceptisols Betty Natalie Fitriatin; Muhammad Iqbal Maulana Yusuf; Anne Nurbaity; Nadia Nuraniya Kamaluddin; Meddy Rachmady; Emma Trinurani Sofyan
Kultivasi Vol 20, No 3 (2021): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v20i3.34107

Abstract

Abstrak  Upaya meningkatkan unsur hara nitrogen (N) dan fosfor (P) tanah secara berkelanjutan adalah dengan memanfaatkan agen hayati bakteri penambat nitrogen dan bakteri pelarut fosfat. Percobaan pot dilakukan dengan tujuan untuk menentukan teknik aplikasi pupuk hayati dalam meningkatkan kandungan dan serapan hara N dan P  serta hasil tanaman jagung pada Inceptisols Jatinangor. Percobaan dilaksanakan di Lahan Percobaan milik Laboratorium Kesuburan Tanah dan Nutrisi Tanaman, Fakultas Pertanian Universitas Padjadjaran. Pupuk hayati yang digunakan merupakan konsorsium bakteri penambat N (Azotobacter chroococcum dan Azospirillum sp.) dan bakteri pelarut P (Pseudomonas malei dan Bacillus subtillis). Percobaan menggunakan Rancangan Acak Kelompok (RAK) dengan sembilan perlakuan dan tiga ulangan. Perlakuan terdiri dari tanpa aplikasi pupuk hayati (kontrol); aplikasi pupuk hayati menggunakan perlakuan benih dengan dosis 500 g dan 250 g/ha; aplikasi pupuk hayati ke dalam tanah dengan dosis 50 kg dan 25 kg/ha; dan kombinasi antara perlakuan benih dan aplikasi ke dalam tanah. Hasil percobaan menunjukkan bahwa teknik aplikasi pada benih, pada tanah, dan kombinasinya meningkatkan serapan N dan P serta hasil tanaman jagung. Perlakuan pupuk hayati pada benih 500 g/ha + aplikasi pada tanah 50 kg/ha merupakan perlakuan terbaik dalam meningkatkan serapan N sebesar 51% dan serapan P hingga 90% dibandingkan kontrol. Perlakuan pada benih 250 g/ha + aplikasi pada tanah 25 kg/ha merupakan perlakuan terbaik dalam meningkatkan hasil sebesar 56% dibandingkan kontrol. Teknik aplikasi pupuk hayati yang efisien dapat digunakan untuk meningkatkan produksi tanaman jagung.Kata kunci: Aplikasi tanah ∙ Keamanan pangan ∙ Pelarut fosfat ∙ Penambat nitrogen ∙ Perlakuan benih  Abstract. The application of biological agents such as nitrogen fixing bacteria and phosphate solubilizing bacteria  is an effort to increase soil nitrogen (N) and phosphorus (P) content. Pot experiment aimed to determine the best application technique of biofertilizer to increase N and P uptake and the yield of maize on Inceptisols. The experiment was carried out at the experimental field of the Laboratory of Soil Fertility and Plant Nutrition, Faculty of Agriculture, Universitas Padjadjaran. Biofertilizers contained of N-fixing bacteria  (Azotobacter chroococcum and Azospirillum sp.) and phosphate solubilizing bacteria  (Pseudomonas malei and Bacillus subtillis).  The experiment used a randomized block design with nine treatments and three replications. The treatments consisted of without biofertilizer application (control); biofertilizers application to seed (seed treatment) at a dose of 500 g ha-1 and 250 g ha-1; biofertilizers application to the soil (soil treatment) with a dose of 50 kg ha-1 and 25 kg ha-1; and the combinations between seed treatment and soil treatment. The results showed that the application of seed treatment, soil treatment, and their combination increased N and P uptake and yields of maize. The seed treatment at a dose of 500 g ha-1 + soil treatment at a dose of 50 kg ha-1 were the best treatment for increasing N uptake by 51% and P uptake by 90% compared to control. The seed treatment at a dose of 250 g ha-1 + soil treatment at a dose of 25 kg ha-1 increased yield of maize by 56% (213.40 g). Efficient biofertilizer application techniques could be used to increase maize production.Keywords: Soil application ∙ Food security ∙ Phosphate solubilizing ∙ Nitrogen fixing ∙ Seed treatment 
Aplikasi Pupuk Hayati dan Pupuk Organik terhadap C-organik dan Derajat Infeksi Akar Tanaman Buah Naga (Hylocereus costaricencis L.) pada Tanah Pasir Bekas Tambang Kiki Zakiah; Anni Yuniarti; Anne Nurbaity; Hidayat Salim
Soilrens Vol 12, No 1 (2014)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v12i1.29431

Abstract

Sand-mining can damage to physical, chemical and biological soil properties. Land reclamation is one of method that can be use to solved that problem. Adding soil ameliorant and revegatation are known can improve soil productivity. The objective of this study was to determine the effect of soil ameliorant, which is organic fertilizer and biofertilizer in improving soil organic-C and root infection of dragon fruit (Hylocereus costaricencis L.) by AMF on soil originated from Sand Mining, Sumedang, Indonesia. Greenhouse experiment was conducted at Faculty of Agriculture, Universitas Padjadjaran from December until June 2013. The experiment used was Factorial Randomized Block Design consist of two factors and three replications. The first factor was biofertilizer which consist of: without biofertilizer, AMF and AMF + MHB (Mychorriza Helper Bacteria). The second factor was organic fertilizer that consist of: without organic fertilizer, chicken manure, goat manure, cow manure, rabbit manure, cocopeat and Organic Granule Fertilizer (each 5 kg / pot). Results of experiment showed that there was interaction effect between organic fertilizer and biofertilizer in improving soil organic-C. There was no interaction effect between organic fertilizer and biofertilizer to root infection.
Respons Beberapa Tanaman Sayuran Bermikoriza terhadap Dosis P pada Sistem Hidroponik Model Ebb Flow Derisfha Anggraeni; Anne Nurbaity; Emma Trinurani Sofyan
Soilrens Vol 17, No 2 (2019)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/soilrens.v17i2.26362

Abstract

Hydroponics is one of the urban farming techniques that can be used to improve crop yield. Nowadays, the supply of all nutriens in hydroponics, particulary phosphate only derived from inorganic fertilizers. Application of arbuscular mycorhiza fungi (AMF) as bioagent may help plants to fill its nutrient need, especially phosphate. This study aimed to find out the best concentration of phosphate fertilizer to be applied to the hydroponic Ebb-flow system model. The stage was to test several vegetable plants with various concentrations of phosphorus (0, 20, 40, 80 ppm) on the Ebb-flow hydroponic system. Vegetables used were romaine lettuce, red lettuce, and kale. Interaction was found between vegetables and the variety of phosphate concentrations and the root colonization by AMF, and phosphate uptake. The AMF applications on the hydroponic Ebb-Flow system model reduced phosphate fertilizer need by 40 ppm (50%), on red lettuce 0 ppm (100%), and on kale 20 ppm (25%). Besides lowered phosphate doses, such applications also increased the plant yield.
Role of Nitrogen Fertilizer on Cadmium Uptake by Ramie (Boehmeria nivea (L.) Gaudich) Grown on Cadmium Contaminated Soil Reginawanti Hindersah; Anne Nurbaity; Dedi Nursyamsi
Agrikultura Vol 26, No 1 (2015): April, 2015
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.23 KB) | DOI: 10.24198/agrikultura.v26i1.8460

Abstract

ABSTRACTContinues phosphate fertilization as well as organic matter amendment can increase cadmium concentrationin soil and induce more cadmium uptake by plants. Pytoremediation using non edible plant such as ramie(Boehmeria nivea L. Goud) is cheap and effective method to extract Cd from Cd-contaminated soil. Since inplant tissue Cd is bound in phytochelatin peptide which contains nitrogen and sulphur, the objective of thisgreen house experiment was to assess the influence of nitrogen fertilizer in form of urea on cadmiumuptake, nitrogen and sulphur concentration in shoots as well as shoot dry weight of 60-day old ramiegrown in cadmium-contaminated soil. The experiment was set up in a Split Plot Design with two treatmentsand three replications. The main plot was cadmium levels (0, 10 and 15 mg kg-1) and subplot was urea level(0, 5.0 and 7.5 g pot-1). The result showed that the increase of cadmium concentration in soil enhanced itsconcentration in ramie shoot regardless of urea levels. However either cadmium or urea did not changesulphur concentration in ramie shoot. Urea of 7,5 g/pot increased shoot dry weight but adding CdCl2.H2O of15 mg/kg did not change shoot dry weight. This experiment demonstrated that ramie was able to grow inrelatively high level of soil cadmium, and higher cadmium uptake by ramie shoot was not followed by anincrease in nitrogen as well as sulphur uptake.Keywords: Cadmium, Urea, Nitrogen, Sulphur, Ramie.
Peningkatan Kualitas Tanah Bekas Tambang Pasir Melalui Penambahan Amelioran Biologis Anne Nurbaity; Anni Yuniarti; Sungkono Sungkono
Agrikultura Vol 28, No 1 (2017): April, 2017
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.885 KB) | DOI: 10.24198/agrikultura.v28i1.12295

Abstract

ABSTRACTImproving soil quality from sand mining area by application of biological ameliorantsSoil from disturbed mine sites render to be unfertile and have poor characteristics. One of the solutions to improve the soil and to rehabilitate the ecosystem is through application of biological amendments such as organic matter, soil microbes, and plant which known to be adaptive such as dragon fruit (Hylocereus costaricensis). This study was aimed at understanding the effects of arbuscular mycorrhizal (AM) fungi and organic matter on soil C-organic, soil N-total, soil C/N, and length of bud of dragon fruits grown on soil originated from sand mining, Sumedang, Indonesia under greenhouse condition. Different types of organic matter i.e. chicken manure, goat manure, cow manure and rabbit manure were applied. Results of experiment showed that application of manures and AMF was significantly improved soil C-organic content, N-total, and C/N, as well as length of bud of dragon fruit plants. Planting soil from sand mine sites with dragon fruit combined with organic matter and mycorrhiza has potential as restoration tools on ecosystem of sand-mining areas.Keywords: Sand-mine, Mycorrhiza, Manure, Dragon fruitABSTRAKTanah pada lahan bekas tambang galian pasir memiliki tingkat kesuburan yang rendah. Salah satu upaya untuk meningkatkan kualitas tanah dan ekosistem di wilayah penambangan pasir adalah melalui aplikasi amelioran biologis berupa bahan organik, mikroba tanah, dan tanaman yang dikenal adaptif terhadap lahan berpasir, seperti buah naga (Hylocereus costaricensis). Tujuan dari penelitian ini adalah untuk mengetahui efek pemberian berbagai jenis pupuk kandang (PK: berasal dari kotoran ayam, kambing, sapi, dan kelinci) dan fungi mikoriza arbuskula (FMA) terhadap kandungan C-organik, N-total, C/N tanah dan panjang tunas bibit buah naga super merah yang ditanam pada tanah bekas tambang pasir asal Sumedang, Indonesia pada kondisi rumah kaca. Hasil percobaan menunjukkan bahwa pemberikan pupuk kandang dan mikoriza meningkatkan kandungan C-organik, N-total, C/N tanah dan panjang tunas bibit buah naga super merah secara nyata. Kombinasi PK sapi dengan FMA atau PK kelinci tanpa FMA menghasilkan tunas bibit buah naga terbaik. Penanaman buah naga di lahan bekas tambang pasir yang dikombinasikan dengan pupuk kandang dan mikroba tanah seperti fungi mikoriza memiliki potensi sebagai sarana untuk restorasi ekosistem di wilayah penambangan pasir.Kata kunci: Tambang pasir galian C, Pupuk kandang, Mikoriza, Buah naga
Efek Sterilisasi dan Komposisi Media Produksi Inokulan Fungi Mikoriza Arbuskula terhadap Kolonisasi Akar, Panjang Akar dan Bobot Kering Akar Sorgum Tarra Martiana Dewi; Anne Nurbaity; Pujawati Suryatmana; Emma Trinurani Sofyan
Jurnal Agro Vol 4, No 1 (2017)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/1205

Abstract

Quality of biofertilizer such as arbuscular myorrhizal fungi could be improved through the selection of appropriate sterilization and composition of the medium. The objective of the experiment was to determine the effect of sterilization and carrier composition on root colonisation, root length and weight of sorghum root. A green house experiment was conducted in randomized block design. The factors were: 1. methods of sterilization (ie. control; autoclave; NaOCl 10%; Co-60 gamma irradiation), and 2. composition of the carrier of mycorrhiza (100% zeolite; 75% zeolite + 25% rice charcoal;  50% zeolite + 50% rice charcoal). Results showed that there was no interaction effect of sterilization and composition of carrier on root colonisation, root length and weight of sorghum root. However, different technique of sterilisation gave differences on root colonisation, root length and weight of sorghum root. Sterilization using NaOCl 10% was not recommended. Gamma Co-60 irradiation sterilization did not have difference with control and autoclave, however there was  tendency  that irradiation technique gave better results to all parameters measured.
THE ROLE OF HYDROGEL AND INCUBATION TIME TOWADS PH, C-ORGANIK, AND N-TOTAL SOIL Atih Winingsih; Abraham Suriadikusumah; Oviyanti Mulyani; Anne Nurbaity; Emma Trinuranisofyan
Jurnal Penelitian Saintek Vol 24, No 1: April 2019
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (24.683 KB) | DOI: 10.21831/jps.v24i1.20868

Abstract

The study was aimed at determining the role of hydrogels and the incubation time on pH, organic C and N-total soil with indicators of sweet corn plants (Zea mays Saccharata Sturt) on Jatinangor inceptisols. The study was conducted from February 2018 to April 2018 at the Ciparanje Experimental Field, Faculty of Agriculture, Padjadjaran University. The study used a Randomized Block Design (RBD) with nine treatments and three replications, consisting of controls; mixed hydrogels and urea incubation and urea only incubation . The parameters observed were pH using the Potentiometric method, C-Organic using the Walkey and Black and N-Total using the Kjeldahl method. The data then were analyzed by variance. Significant testing was conducted to determine the effect of treatment using the Fisher Test at the level of 5%. The results show that there is an effect of hydrogels and the incubation time of hydrogels on pH, organic C and N-total soil. The control treatment shows the highest pH of 6.88. The urea treatment and incubation hydrogel of 20 days shows the highest organic C at 2.80% and the highest N-total is found in the treatment of urea and 40 day incubation hydrogel which is 0.34%.PERAN HIDROGEL DAN WAKTU INKUBASINYA TERHADAP pH, C-ORGANIK, DAN N-TOTAL TANAHPenelitian bertujuan untuk mengetahui peran hidrogel dan waktu inkubasinya terhadap pH, C-organik dan N-total tanah dengan indikator tanaman jagung manis (Zea mays Saccharata Sturt) pada inceptisols Jatinangor. Penelitian dilakukan mulai bulan Februari 2018 hingga April 2018 di Lahan Percobaan Ciparanje Fakultas Pertanian Universitas Padjadjaran. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan sembilan perlakuan dan tiga kali ulangan, yang terdiri atas kontrol; hidrogel dan urea inkubasi serta urea inkubasi. Parameter yang diamati adalah pH dengan menggunakan metode Potensiometri, C-Organik dengan menggunakan metode Walkey and Black dan N-Total dengan menggunakan metode Kjeldahl. Data hasil pengamatan pada penelitian akan dianalisis dengan sidik ragam. Pengujian signifikan untuk mengetahui pengaruh perlakuan digunakan Uji Fisher pada taraf 5%. Hasil penelitian menunjukkan terdapat pengaruh hidrogel dan waktu inkubasi hidrogel terhadap pH, C-organik dan N-total tanah. Perlakuan kontrol menunjukkan pH tertinggi yaitu 6,88. Perlakuan urea dan hidrogel inkubasi 20 hari menunjukkan C-organik tertinggi yaitu 2,80% dan N-total tertinggi yaitu perlakuan urea dan hidrogel inkubasi 40 hari yaitu 0,34%. 
PELATIHAN BUDIDAYA SAYURAN HIDROPONIK SECARA VIRTUAL PADA MASA PANDEMI DI KECAMATAN CIDADAP, BANDUNG, JAWA BARAT Anne Nurbaity
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 27, No 4 (2021): OKTOBER-DESEMBER
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v27i4.23694

Abstract

Situasi pandemi covid-19 saat ini mengharuskan masyarakat untuk membatasi kegiatan di luar rumah, termasuk dalam mendapatkan kebutuhan pangan sehari-hari seperti sayuran. Agar masyarakat dapat memproduksi sayuran di lingkungan rumahnya masing-masing serta tetap membatasi diri dalam melakukan kegiatan di luar rumah, dilakukan upaya pelatihan budidaya sayuran hidroponik. Kegiatan pengabdian kepada masyarakat (PKM) dilakukan pada bulan Januari 2021 secara blended virtual menggunakan aplikasi webinar, dengan melibatkan 40 orang mitra dan diikuti lebih dari 150 masyarakat umum yang tersebar di beberapa kota di Indonesia. Beberapa perwakilan warga dan instruktur berada di lokasi untuk melakukan demonstrasi budidaya sayuran hidroponik yang disiarkan secara langsung di kecamatan Cidadap, Bandung, Jawa Barat. Dari hasil survey yang dilakukan terhadap mitra PKM (32 orang mengisi kuesioner secara online dan 8 orang wawancara langsung), 46,9% menyatakan belum tahu dan belum pernah melakukan kegiatan hidroponik sebelumnya. Di akhir kegiatan, 96.9% peserta menyatakan kegiatan pelatihan hidroponik ini telah meningkatkan pemahaman tentang budidaya sayuran secara hidroponik dan menyatakan ingin melakukan kegiatan ini di masa mendatang. Perwakilan warga yang hadir di lokasi, diberi bantuan benih dan nutrisi hidroponik untuk kelanjutan kegiatan ini. Capaian dari kegiatan PKM ini secara umum adalah warga mendapatkan manfaat dan pengetahuan tentang budidaya tanaman sayuran secara hidroponik, sehingga meningkatkan produktivitas lahan pekarangan rumah untuk mendukung kesehatan dan ketahanan pangan keluarga. 
Mycorrhiza Enhanced Protein and Lipid Contents of Potatoes Grown on Inceptisol with Addition of Organic Matter Anne Nurbaity; Glenn Christopher Uratel; Jajang Sauman Hamdani
JOURNAL OF TROPICAL SOILS Vol 24, No 3: September 2019
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2019.v24i3.129-133

Abstract

Enhancement of productivity of potato plants grown on poor-P soil such as Inceptisols due to application of arbuscular mycorrhizal fungi (AMF) has been acknowledged. However, whether this AMF improved the quality of potato tubers is still need further investigation. This study was conducted to evaluate the effectiveness of AMF in enhancing potato quality and determine whether the addition of compost and biochar to soil can support the productivity of this biofertilizer in enhancing the nutrient content in the tubers of potato plant. Screen house experiment was set up in factorial design with treatments were organic matter types (compost and compost plus biochar), and application of arbuscular mycorrhiza (without and with AMF consisted of Glomus sp. and Gigaspora sp.). Results of experiment showed that there was no interaction effect between organic matter and AMF on quality of potato tubers, however, the individual treatment especially AMF  increased the content of protein and lipid of potato tubers. Biochar that added to soil with compost was also increased the lipid content of potato tubers. This finding showed that AMF application in potato production grown in poor P-soil was not only increased the yield of potato, but also increased the quality of potato tubers.
Pengaruh Jenis Amelioran Dalam Berbagai Taraf Pemberian Dosis Cd Terhadap Tanah Dan Tanaman Oviyanti Mulyani; Emma Trinurani Sofyan; Anne Nurbaity
Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech) Vol 3 No 1 (2018): Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech)
Publisher : Faculty of Agriculture University of Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (72.33 KB) | DOI: 10.33661/jai.v3i1.1163

Abstract

Kadmium (Cd) merupakan salah satu logam berat yang dihasilkan dari efek negatif sistem budidaya pertanian.Aplikasi pemupukan dan penggunaan pestisida berlebih dapat menyumbangkan kandungan Cd yang tinggi sehinggadapat menurunkan produktivitas tanah dan mutu hasil pertanian. Percobaan ini bertujuan untuk mengetahui pengaruhpengaruh macam amelioran dalam pemberian berbagai taraf dosis Cd terhadap C Organik, Cd total tanah, serapanCd serta hasil tanaman selada (Lactuca sativa L) pada Andisols asal Lembang. Rancangan yang dilakukan dalampenelitian ini adalah Rancangan Acak Kelompok (RAK), dengan dua puluh perlakuan dan dua kali ulangan, sehinggaseluruhnya berjumlah empat puluh perlakuan. Faktor pertama yaitu macam amelioran yang terdiri dari tanpaamelioran (kontrol), kompos serasah daun jagung, arang sekam, zeolit dan dolomit. Sedangkan faktor kedua yaituberbagai taraf dosis Cd, yang terdiri dari larutan Cd 0 ppm, larutan Cd 1 ppm, larutan Cd 2 ppm dan larutan Cd 3ppm. Hasil percobaan menunjukkan bahwa tidak terjadi interaksi antara macam amelioran dan taraf dosis Cdterhadap semua parameter akan tetapi memberikan pengaruh secara mandiri untuk Cd total, serapan Cd dan hasiltanaman selada. Pada perlakuan amelioran dolomit, dapat memberikan rata-rata hasil tanaman selada tertinggi yaitu41,58 gr.Kata Kunci : Amelioran, keberlanjutan, pencemaran tanah
Co-Authors Abraham Suriadikusumah Anne Nuraini Anni Yuniarti Atih Winingsih Baiq Azizah Haryantini Betty Natalie Fitriatin Dedi Nursyamsi Derisfha Anggraeni Eleonora Agustine Emma Trinurani Sofyan Glenn Christopher Uratel Gordon Pius Marihot Pius Marihot Hidayat Salim Jajang Sauman Hamdani Kiki Zakiah Meddy Rachmady Muhammad Aldino Rahman Muhammad Iqbal Maulana Yusuf Nadia Nuraniya Kamaluddin Oviyanti Mulyani Pujawati Suryatmana Reginawanti Hindersah Sungkono Sungkono Tarra Martiana Dewi Tualar Simarmata