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IMPACT OF BRACHIARIA, ARBUSCULAR MYCORRHIZA, AND POTASSIUM ENRICHED RICE STRAW COMPOST ON ALUMINIUM, POTASSIUM AND STABILITY OF ACID SOIL AGGREGATES Hafifa, Bariot; Sabiham, Supiandi; Anas, Iswandi; Sutandi, Atang Sutandi; Suyamto, Suyamto
Indonesian Journal of Agricultural Science Vol 13, No 1 (2012): April 2012
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

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Acid soil is commonly grown with cassava, which in general, tolerate low soilÂ fertility and aluminum (Al) toxicity. However, without any improvement efforts such soil will become worse. Intercropping cassava with Brachiaria decumbens (BD) which adapts to acid soil and tolerates low fertility soils as well as application of arbuscular mycorrhiza (AM) and organic matters are among the important efforts to rehabilitate this soil. The experiment was conducted toÂ examine the impact of BD, AM, and potassium (K) enriched rice straw compost on exchangeable Al, available K, and stability of soil aggregates. Experiment was arranged in a completely randomized design with three factors and three replications. The first factor was BD as cassava intercropping, the second factor was AM, and the third factor was 2 t ha-1 rice straw compost enriched with 0 kg, 50 kg, 100 kg, and 200 kg KCl ha-1. Brick pots (1 m length x 1 m width x 0.45 m depth) filled with Kanhapludult soil was used for growing cassava in which row of BD was planted at 60 cm from cassava stem. K-enriched rice straw compost and AM (10 g per stem) were applied around cassava stem at 2 and 12 days after planting, respectively. BD was cut every 30 days and the cutting was returned to the soil. Soil exchangeable Al was analyzed at 0, 3, 6 and 9 months after planting (MAP), while Al and K contents as well as aggregate stability were measured at 6 MAP. The results showed that planting BD decreased 33% exchangeable Al, which means that the root exudates of this grass was effective in detoxifying Al3+. Treatment of BD and/or in combination with AM was effective in preserving K added to the soil, increasing total polysaccharides, and improving soil aggregate stability. This indicated that planting BD and applying AM and Kenriched rice straw compost improved acid soil fertility, and therefore can be recommended in cassava cultivation.

GENETIC VARIABILITY, HERITABILITY AND EXPECTED GENETIC ADVANCES OF QUANTITATIVE CHARACTERS IN F2 PROGENIES OF SOYBEAN CROSSES Hakim, Lukman; Suyamto, Suyamto; Paturohman, Eman
Indonesian Journal of Agricultural Science Vol 15, No 1 (2014): April 2014
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

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The F2 progenies of crosses among three soybean varieties were evaluated with their parents at Ngale Experimental Farm, Ngawi, East Java during the dry season of 2011. The experi-ment was conducted in a randomized block design with three replications. The seeds of each F2 progenies and parents were planted in two rows of 4.5 m long. Plant spacing was 40 cm x 15 cm and each hill contained one plant. Among the characters studied, seed weight per plant, number of pods per plant and days to maturity had the highest coefficient of variability with the means of 52.6%, 48.2% and 41.9%, respectively. Whereas seed size, plant height and number of reproductive nodes had moderate values of 36.9%, 35.5% and 37.4%, respectively. Number of branches and days to flowering had the lowest variability of 11.7% and 15.3%, respectively. Number of pods per plant, days to maturity, plant height and seed size had high mean estimates of heritability coupled with high genetic advance. The genetic progress of these characters that would be obtained for one generation of selection was estimated 47.2%, 45.7%, 40.9% and 40.3%, respectively. Among the agronomic characters, plant height, number of pods per plant, seed size and days to maturity had the highest coefficient of variability associated with high heritability and genetic advance. Therefore, selection for high yielding with early maturity soybean genotypes based on plant height, number of pods per plant and seed size might be possible.

KORELASI ANTAR-KARAKTER DAN SIDIK LINTAS ANTARA KOMPONEN HASIL DENGAN HASIL BIJI KACANG HIJAU (Vigna radiata (L) Wilczek) [Correlation Among Characters and Path Analyses Between Yield Components with Grain Yiled on Mungbean (Vigna radiata (L) Wilczek)] Hakim, Lukman; Suyamto, Suyamto
BERITA BIOLOGI Vol 11, No 3 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

A total of 10 mungbean (Vigna radiata (L.) Wilczek) genotipes including check variety (Vima) were evaluated on rainfed after rice at Ngale Experimental Farm, Ngawi, East Java during early dry season of 2010. The experiment was conducted in randomized complete block design with three replications. Plot size was 4 m x 5 m, plant spacing was 40 cm x 20 cm, each hill contained two plants. A correlated and path coefficient analyses were used in order to determine the association among characters and quantify the direct and indirect effects of agronomy traits on seed yield. The study has identified 2 promising lines, i.e. MMC342d-3-4 and MMC342d-kp-3-3 produced the highest yield of 2.2 t and 2.0 t/ha respectively and had good adaptation on rainfed. Two varieties (Kutilang and Kenari) having large seed size (>7.5g/100 seed). Therefore, these varieties can be used as source of parents on breeding program. Among the agronomic characters, number of pods per plant, number of seeds per pod and seed size were positively and significantly correlated with grain yield. The direct effect of number of pods per plant, number of seed per pod and seed size to grain yield as indicated by path coefficient were the highest, while other causal effects to grain yield were small or negative. Based on both analyses, mungbean genotipes with high grain yield should have high number of pods per plant, number of seeds per pod and large seed size. Therefore, number of pods per plant, number of seeds per pod and seed size can be suggested for selection criteria in selecting high yield mungbean genotipes on rainfed.

KEPUASAN KERJA, KOMITMEN ORGANISASI, MOTIVASI, DAN GAYA KEPEMIMPINAN TERHADAP KINERJA MANAJERIAL PEMERINTAH DAERAH Supartini, Supartini; Suyamto, Suyamto
Jurnal Analisis Bisnis Ekonomi Vol 13 No 2 (2015): Volume 13, Nomor 2, Oktober 2015
Publisher : Universitas Muhammadiyah Magelang

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Penelitian ini memiliki lima tujuan yakni: 1) menguji secara empiris pengaruh kepuasan kerja terhadap kinerja manajerial Pemda, 2) menguji secara empiris pengaruh komitmen organisasi terhadap kinerja manajerial Pemda, 3) menguji secara empiris pengaruh motivasi terhadap kinerja manajerial Pemda, 4) menguji secara empiris pengaruh gaya kepemimpinan terhadap kinerja manajerial Pemda, dan 5) menguji secara empiris pengaruh kepuasan kerja, komitmen organisasi, motivasi dan gaya kepemimpinan secara bersama-sama terhadap kinerja manajerial Pemda. Teknik pengambilan sampel dalam penelitian ini menggunakan random sampling. Data yang digunakan merupakan data primer, yang diperoleh dengan menyebarkan kuesioner pada pejabat eselon III dan eselon IV di pemerintah daerah Kabupaten Karanganyar. Pengujian hipotesis menggunakan Analisis Regresi Linier Ganda. Hasil penelitian menunjukkan kepuasan kerja, komitmen organisasi dan gaya kepemimpinan berpengaruh positif terhadap kinerja manajerial. Sedangkan motivasi berpengaruh negatif terhadap kinerja manajerial. Kepuasan kerja, komitmen organisasi, motivasi dan gaya kepemimpinan secara bersama-sama berpengaruh terhadap kinerja manajerial pemerintah daerah kabupaten Karanganyar.

Khelatisasi Ion Aluminium oleh Asam Organik Eksudat Akar Brachiaria Hafif, B.; Sabiham, S.; Iswandi, A.; Sutandi, A.; Suyamto, Suyamto
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 3 (2010): October 2010
Publisher : Universitas Atma Jaya Yogyakarta

Aluminum toxicity is one of the major factors inhibiting plant growth in acid soils. Brachiaria grass adapt to high Al concentration. This experiment was conducted to study exudation of low molecular weight organic acids (LMWOA) activated by Al, from Brachiaria roots and its potential in chelating Al. Three Brachiaria species, i.e. B. decumbens, B. ruziziensis and B. brizantha, planted in sterile sand culture and were treated with 5 Al concentrations (0, 100, 200, 300 and 400 Î¼M). After two-month experiment, three kinds of LMWOA, i.e, malic, citric, and oxalic acids, produced by the three Brachiaria-root exudates were measured in the sand culture. The production of malic acid was higher than that of citric and oxalic acid. Those organic acids were influenced by Al concentration; the higher Al concentration the higher organic acid content would be. The organic acids were also proved to form Al-organic compounds effectively of which B. decumbens and B. brizantha were more effective in chelating Al at relatively low Al (100 Î¼M) and at relatively high Al concentration (300 Î¼M and 400 Î¼M), respectively.

KEPUASAN KERJA, KOMITMEN ORGANISASI, MOTIVASI, DAN GAYA KEPEMIMPINAN TERHADAP KINERJA MANAJERIAL PEMERINTAH DAERAH Supartini, Supartini; Suyamto, Suyamto
Jurnal Analisis Bisnis Ekonomi Vol 13 No 2 (2015): Volume 13, Nomor 2, Oktober 2015
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (162.989 KB)

Penelitian ini memiliki lima tujuan yakni: 1) menguji secara empiris pengaruh kepuasan kerja terhadap kinerja manajerial Pemda, 2) menguji secara empiris pengaruh komitmen organisasi terhadap kinerja manajerial Pemda, 3) menguji secara empiris pengaruh motivasi terhadap kinerja manajerial Pemda, 4) menguji secara empiris pengaruh gaya kepemimpinan terhadap kinerja manajerial Pemda, dan 5) menguji secara empiris pengaruh kepuasan kerja, komitmen organisasi, motivasi dan gaya kepemimpinan secara bersama-sama terhadap kinerja manajerial Pemda. Teknik pengambilan sampel dalam penelitian ini menggunakan random sampling. Data yang digunakan merupakan data primer, yang diperoleh dengan menyebarkan kuesioner pada pejabat eselon III dan eselon IV di pemerintah daerah Kabupaten Karanganyar. Pengujian hipotesis menggunakan Analisis Regresi Linier Ganda. Hasil penelitian menunjukkan kepuasan kerja, komitmen organisasi dan gaya kepemimpinan berpengaruh positif terhadap kinerja manajerial. Sedangkan motivasi berpengaruh negatif terhadap kinerja manajerial. Kepuasan kerja, komitmen organisasi, motivasi dan gaya kepemimpinan secara bersama-sama berpengaruh terhadap kinerja manajerial pemerintah daerah kabupaten Karanganyar.

Digital Transformation in the Hospitality Industry: Improving Efficiency and Guest Experience Amirulloh Anwar, Fahmi; Deliana, Dian; Suyamto, Suyamto
International Journal of Management Science and Information Technology Vol. 4 No. 2 (2024): July - December 2024
Publisher : Lembaga Otonom Lembaga Informasi dan Riset Indonesia (KITA INFO dan RISET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijmsit.v4i2.3201

Digital transformation in the hospitality industry has become critical in improving operational efficiency and guest experience. This study aims to analyze the impact of implementing digital technologies, such as Artificial Intelligence (AI), the Internet of Things (IoT), and big data analytics, on operational performance and guest satisfaction in star-rated hotels in Indonesia. Using a qualitative descriptive approach, this study was conducted through in-depth interviews with operational and IT managers from five-star-rated hotels in Jakarta and Bali, which have adopted digital technologies in their operational activities. The results showed that implementing a cloud-based property management system can increase operational efficiency by up to 30%. In comparison, using AI, such as chatbots, can reduce staff workload by up to 70%. The use of big data analytics also allows hotels to provide more personalized services, increasing guest satisfaction by up to 15%. The study also found that contactless digital technologies, which have become increasingly important during the COVID-19 pandemic, improve guests’ perceptions of safety and comfort. However, system integration, staff training, and initial investment costs are the main challenges faced. The study concluded that digital transformation significantly improves hotel efficiency, guest satisfaction, and competitiveness in an increasingly competitive market. Continuous adoption of digital technologies is highly recommended to maintain the relevance of the hospitality industry in the future.

The Effect of Use of Local Organic Microorganism Fertilizers on Rice Media, Banana Sticks, And Tongol Fish on The Growth of Arabika Coffee Plants (Coffea arabica L.) in The Gunung Karang Garden, Pandeglang District Suyamto, Suyamto; Hujaji, M.; Susilo, Hadi; Oktavia, Swastika; Mu'jijah, Mu'jijah
Biology, Medicine, & Natural Product Chemistry Vol 13, No 1 (2024)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2024.131.251-258

Arabica coffee plants (Coffea arabica L.) are plantation commodities with high economic value. Efforts that can be made in farming without using chemicals that will damage the environment is by utilizing local microorganisms (MOL). For farmers who demand the use of cheap and practical fertilizers, they can be directed to use local microorganism organic fertilizers made from rice, banana stems, and tuna. This study aims to determine the effect of using local microorganism organic fertilizers made from rice, banana stems, and tuna on the growth of C. arabica plants. The type of research to be carried out is experimental research. This research method uses a Completely Randomized Factorial Design (CRFD) consisting of 2 factors and 3 replications. The first factor is the source material consisting of 3 levels, namely: M1 = stale rice, M2 = banana stem, and M3 = tuna. The second factor is the fermentation period consisting of: H1 = 2 weeks fermentation and H2 = 4 weeks fermentation. The measured parameters of C. arabica plants are height, number of leaves, and stem diameter. The results showed that rice, banana stem, and tuna can be made into MOL fertilizers. The use of MOL organic fertilizers (stale rice, banana stem, and tuna) affects the growth of C. arabica, which can be seen from the parameters of plant height, number of leaves, and stem diameter. M3H2 MOL organic fertilizer (tuna fermented for 4 weeks) provides optimal growth of C. arabica in terms of plant height, number of leaves, and stem diameter.

MULTIPLIKASI TUNAS DAN INDUKSI PERAKARAN TANAMAN NILAM Rezaldi, Firman; Abdilah, Nurullah Asep; Mu’jijah, Mu’jijah; Susilo, Hadi; Suyamto, Suyamto; Setiawan, Usman; Oktavia, Swastika
Jurnal Ilmu Pertanian dan Perkebunan Vol 4 No 1 (2022): Januari : Jurnal Ilmu Pertanian dan Perkebunan
Publisher : Universitas Gajah Putih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55542/jipp.v4i1.157

Penelitian mengenai multiplikasi tunas dan induksi perakaran tanaman nilam (Pogestemon cablin Benth) secara in vitro pada medium MS telah dilakukan pada bulan Juni sampai Desember 2013. Tujuan penelitian ini adalah untuk mendapatkan kombinasi konsentrasi NAA dan BAP terbaik dalam multiplikasi tunas nilam dan konsentrasi NAA terbaik dalam induksi perakaran nilam. Penelitian ini dilakukan secara eksperimental dengan menggunakan Rancangan Acak Kelompok (RAK). Pada tahap multiplikasi tunas digunakan pola faktorial yang terdiri dari dua faktor. Faktor yang pertama adalah konsentrasi zat pengatur tumbuh (zpt) BAP yang terdiri dari 4 taraf konsentrasi yaitu 0 ppm, 0,5 ppm, 1,5 ppm, dan 2 ppm. Faktor yang kedua adalah konsentrasi zat pengatur tumbuh (zpt) NAA yang terdiri dari 3 taraf konsentrasi yaitu 0 ppm, 0,5 ppm, dan 1,5 ppm. Pada tahap multiplikasi tunas parameter yang diamati adalah jumlah tunas, dan tinggi tunas, sedangkan pada tahap induksi perakaran parameter yang diamati adalah jumlah akar, dan panjang akar. Hasil penelitian menunjukkan bahwa terdapat kombinasi konsentrasi NAA dan BAP yang terbaik dalam menghasilkan jumlah tunas nilam yaitu kombinasi, NAA 0 ppm + BAP 2 ppm, menghasilkan 11 tunas, untuk tinggi tunas terdapat kombinasi konsentrasi NAA dan BAP yang terbaik, yaitu konsentrasi NAA 0 ppm + BAP 0,5 ppm, menghasilkan tinggi tunas 3,13 cm. Konsentrasi NAA tunggal dengan konsentrasi 1,5 ppm merupakan konsentrasi NAA tunggal yang terbaik dalam menghasilkan jumlah akar dan mempengaruhi panjang akar. Pada konsentrasi 1,5 ppm menghasilkan jumlah akar sebanyak 7 buah, dan panjang akar 2,3 cm.

Budayakan Minum Obat Anti Hipertensi (Bumi Baper) pada Lansia Suyamto, Suyamto; Astuti, Athanasia Budi
Jurnal Peduli Masyarakat Vol 5 No 2 (2023): Jurnal Peduli Masyarakat: Juni 2023
Publisher : Global Health Science Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37287/jpm.v5i2.1670

Berdasarkan hasil pertemuan dengan kader kesehatan yang ada di wilayah rw.034 dan terdapat 45 lansia dengan berbagai masalah kesehatan banyak dihadapi oleh warga yaitu: hipertensi, diabetes militus, gangguan jiwa, merokok. Hipertesni merupakan masalah paling banyak terjadi pada lansia kususnya di wilayah tersebut. Hipertensi merupakan penyakit kardiovaskular yang sering ditemukan pada pasien di lanjut usia, dimana hipertensi ini memerlukan pengobatan dan perawatan dalam jangka panjang untuk mengontrol, mengendalikan tekanan darah serta untuk mencegah komplikasi sehingga diperlukan kepatuhan minum obat. Ketelatenan atau kepatuhan lansia untuk minum obat antihipertensi merupakan salah satu dari faktor yang menentukan dalam mengendalikan tekanan darah. Penyakit hipertensi bukan hanya beresiko tinggi pada penderita penyakit kardiovaskuler tetapi juga penyakit yang lain seperti saraf dan ginjal. Semakin tinggi peningkatan tekanan darah, semakin besar pula resiko komplikasinya. Adapun metode kegiatan ini dilakukan untuk mengatasi masalah yaitu dengan pendidikan kesehatan adapun rangkaian kegiatan penyuluhan sebagai berikut: Tahap Persiapan ini kita awali dengan kontrak kepada kader kesehatan untuk kegiatan yang akan dilakukan, membuat SAP, Media, dan persiapan lain seperti surat menyurat. Tahap pelaksanaan pendidikan kesehatan yaitu: kegiatan dilakukan pada tanggal 4 April 2023 pukul 09.30 s.d 12.30. pembukaan, pemberian materi, diskusi, pembagian reward bagi yang terlibat aktif. Tahap evaluasi bahwa pelaksanaan bisa berjalan dengan baik pasien dapat menerima, mengerti tentang hipertensi, gejala, faktor risiko, dan bagaimana pencegahan serta pentingnya pengobatan hipertensi. Tahap rencana tindak lanjut penyuluhan kesehatan tentang hipertensi pada lansia di Padukuhan Tawangsari RW 34 Mojosongo. Jebres, Surakarta tetap diadakan dan berkelanjutan sebagai upaya edukasi kepada masyarakat, agar dapat lebih memahami dan mengenali serta menerapkan budaya minum obat anti hipertensi agar terhindar komplikasi yang bisa muncul akibat hipertensi. Hasil Pengabdian Kepada Masyarakat tersebut pasien dapat menerima dan mengerti dengan baik mengenai hipertensi, gejala, faktor risiko, dan bagaimana pencegahan serta pentingnya minum obat anti hipertensi.

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