1,720,968 research outputs found
Longhorn beetle (Coleoptera: Cerambycidae) in Enclave Area, Lore Lindu National Park, Central Sulawesi
Telah dilakukan penelitian mengenai kumbang antena panjang di area Enclave Taman Nasional Lore Lindu pada bulan Desember 2013 sampai Mei 2014. Penelitian ini bertujuan untuk mengetahui jenis-jenis kumbang antena panjang di perkebunan kakao dan kopi, area Enclave Taman Nasional Lore Lindu, serta distribusi, tambuhan inang dan habitatnya. Koleksi kumbang antena panjang menggunakan perangkap Artocarpus trap. Terdapat 6 species kumbang antena panjang yang ditemukan di perkebunan kakao dan kopi, yaitu Gnoma pulverea, Acalolepta celebensis, A. fasciata, A. montana, A. rusticatrix, and Epepeotes plorator celebensi
Growth and yield of rice fields with posbidik compost and jajar legowo planting system
Posbidik compost is an innovative product that is expected to solve the scarcity of subsidized fertilizers for farmers. The principle of the jajar legowo planting system is to increase plant population and lowland rice production. This study aimed to determine the influence of posbidik compost and jajar legowo planting system on the growth and yield of Ciherang rice varieties. This study was conducted on irrigation paddy fields owned by farmers in West Toili District, Banggai Regency, in August-December 2020. This study used a factorial randomized block design consisting of 2 factors, namely posbidik compost consisting of 3 levels, namely: K1 = 5 tons/ha; K2 = 7.5 tons/ha; K3 = 10 tons / ha, and planting system legowo 2:1 line consisting of 3 levels, namely: L1 = 20 x 10 x 40 cm; L2 = 25 x 12.5 x 50 cm; L3 = 30 x 15 x 60 cm. The results showed that the interaction of posbidik compost and jajar legowo planting system does not affect the plant height; however, it affects the number of productive tillers, the weight of 1000 grains and productivity. The results showed that the best performance of the yield rice in the treatments of 7.5 tons/ha posbidik dose with planting space of 25 x 12.5 x 50 cm
The Growth and Yield of IPB 3S Rice Variety With NPK and Rice Straw Compost
To minimize the use of inorganic fertilizers is by giving rice straw compost to the soil. The rice straw compost is a potential organic material for lowland rice plants. This study was aimed to determine the effect of the combination of NPK fertilizer and rice straw compost on the growth and yield of IPB 3S rice variety. This research was carried out on farmers' land in Dowiwi village, Simpang Raya sub-district, Banggai district. The study used a factorial randomized block design with two factors. Factor A (NPK) consisting of four levels namely A1 (62.5 kg / ha), A2 (125 kg / ha), A3 (187.5 kg / ha) and A4 ( 250 kg / ha). Factor B of rice straw compost (B) consisting of four levels, namely B1 (1.25 tons / ha), B2 (2.5 tons / ha), B3 (3.75 tons / ha), and B4 (5 tons / Ha). The results showed that rice straw compost can be increased plant height and 1000 grains weight. The interaction of NPK and rice straw compost (NPK 62.5 kg/ha + 5 tons/ha) was able to minimize the use of NPK fertilizer by 75% in panicle length and 1000 grains weight.
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REFERENCES
Amrah ML. (2008). Pengaruh manajemen jerami terhadap pertumbuhan dan hasil padi sawah (Oryza sativa L.). Skripsi. Bogor: Institut Pertanian Bogor.
Arafah, Sirappa MP. (2013). Kajian penggunaan jerami dan pupuk N, P, dan K pada lahan sawah irigasi. Jurnal Ilmu Tanah dan Lingkungan. 4(1): 15-24
Barus Y. (2012). Application of rice straw compost with different bio activators on the Growth and yield of the rice plants. Journal of Tropical Soils. 17(1): 25-29. Doi: 10.5400/jts.2011.17.1.25
Boroomand N, Grouh MSH. (2012). Macroelements nutrition (NPK) of medicinal plants. Journal of Medicinal Plants Research 6(12): 2249-2255
Diptaningsari D. (2013). Analisis keragaman karakter agronomis dan stabilitas galur harapan padi gogo turunan padi lokal Pulau Buru hasil kutur antera. Disertasi. Bogor: Institut Pertanian Bogor.
Hartatik W, Setyorini D. (2008). Validasi rekomendasi pemupukan NPK dan pupuk organik pada padi sawah. hlm 275-283 Dalam : M. Anda, B. Hendro, Irawan, E. Surmaini, Wahyunto, dan E. Husen (eds). Prosiding Seminar Nasional Dialog Sumberdaya Lahan Pertanian. Bogor: Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian.
Hartatik W, Widowati LR. (2015). Pengaruh Pupuk Majemuk NPKS dan NPK terhadap Pertumbuhandan Hasil Padi Sawah pada Inceptisol. Jurnal Penelitian Pertanian Tanaman Pangan. 34(3):175-186.
Hosseini SM, Aziz HA. (2013). Evaluation of thermochemical pretreatment and continuous thermophilic condition in rice straw composting process enhancement. Bioresource Technology. 133: 240–247. doi: 10.1016/j.biortech.2013.01.098
Idawati, Rosnina, Jabal, Sapareng S, Yasmin, Yasin SM. (2017). Penilaian kualitas kompos jerami padi dan peranan biodekomposer dalam pengomposan. Journal TABARO. 1(2): 127-135
Juwita Y. (2014). Teknologi Pengolahan, Manfaat, dan Kendala Penggunaan Kompos Jerami Padi.. hlm 769-775. Dalam: S. Herlinda, Suwandi, F.H. Taqwa, Tanbiyaskur, Eko Handayanto, Sarjan, N. Aini, Rajiman, dan Mardhiana (eds). Prosiding Seminar Nasional Lahan Suboptimal. Palembang: Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) UNSRI.
Kaya E, (2013). Pengaruh kompos jerami dan pupuk NPK terhadap N-tersedia tanah, serapan-N, pertumbuhan dan hasil padi sawah (Oryza sativa L.). Prosiding FMIPA Universitas Pattimura. Ambon, Hal. 41-47
Ma’sum FQA, Kurniasih B, Ambarwati E. (2016). Pertumbuhan dan hasil padi sawah (Oryza sativa L.) pada beberapa takaran kompos jerami dan zeolite. Jurnal Vegetalika. 5(3): 29-40
Noviani PI, Slamet S, Citraresmini A. (2018). Kontribusi kompos jerami-Biochar dalam peningkatan P-tersedia, jumlah populasi BPF dan hasil padi sawah. Jurnal Ilmiah Aplikasi Isotop dan Radiasi. 14(1): 47-57
Pranata M, Kurniasih B. (2019). Pengaruh pemberian pupuk kompos jerami padi terhadap pertumbuhan dan hasil padi (Oryza sativa L.) pada kondisi salin. Jurnal Vegetalika. 8(2): 95-107.
Sabran I, Soge YP, Wahyudi HI. (2015). Pengaruh pupuk kandang ayam bervariasi dosis terhadap pertumbuhan dan hasil tanaman kacang tanah (Arachis hypogeae L.) pada entisol Sidera. Jurnal Agrotekbis. 3(3) : 297-302
Sitepu RB, Anas I, Djuniwati S. (2017). Pemanfaatan jerami sebagai pupuk organik untuk meningkatkan pertumbuhan dan produksi padi (Oryza sativa). Buletin Tanah dan Lahan, 1(1): 100-108
Surahman M, Budiman C, Aswidinnoor H, Qadir A, Diaguna R. (2017). Optimization of NPK and silica fertilization for seed production of IPB 3S rice varieties in Pinrang, South Sulawesi. International Journal of Agronomy and Agricultural Research. 11(6): 102-107
Susanto U, Daradjat AA, Suprihatno B. (2003). Perkembangan pemuliaan padi sawah di Indonesia. Jurnal Litbang Pertanian 22(3) : 125-13
The Effect of Trichoderma sp on the Intensity of Fusarium Disease and Production of Shallot
Fusarium wilt disease can cause damage and reduce the yield of shallot. Trichoderma sp is a biological agent that can be used to reduce the incidence of fusarium wilt disease in shallot. This study aims to determine the effect of Trichoderma sp on the intensity of fusarium wilt attack and shallot production. This research was conducted in Salodik Village, Luwuk Utara District, Banggai Regency, using a non-factorial randomized block design consisting of five treatments with four replications, namely: P0 (Control), P1 (10 gr Trichoderma sp./liter of water), P2 (12 gr Trichoderma sp./liter of water), P3 (14 gr Trichoderma sp./liter of water) and P4 (16 gr Trichoderma sp./liter of water). The results showed that giving Trichorderma sp had a very significant effect on the average intensity of fusarium wilt disease and had a significant effect on the average production of shallot. The provision of 10 gr Trichorderma sp /liter of water is the best treatment to reduce the intensity of fusarium wilt attack and increased the average production of shallot
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
KELAS KESESUAIAN LAHAN UNTUK PENGEMBANGAN TANAMAN VANILI DI KECAMATAN BALANTAK KABUPATEN BANGGAI
Kajian evaluasi lahan perlu dilakukan untuk memaksimalkan penggunaan lahan yang berpotensi untuk pengembangan komoditi perkebunan. Penelitian ini bertujuan untuk mengetahui karakteristik dan kesesuaian lahan untuk pengembangan tanaman Vanili (Vanilla planifolia) serta mengethui faktor pembatas apakah yang menjadi kendala dalam pengembangan tanaman Vanili di Desa Mamping Kecamatan Balantak. Penelitian ini dilaksanakan di Desa Mamping Kecamatan Balantak dengan metode indeks lahan menurut Storie (1985), dimana S = A× B × C × Xn. Hasil penelitian untuk Kelas kesesuaian lahan (KKL) pedon (Profil-1, Profil-2) termasuk dalam kategori kelas 3 (sedang), sehingga dapat diarahkan untuk pengembangan tanaman Vanili, namun membutuhkan pengelolaan lahannya (pemupukan) yang teratur. Pada Profil-3 perlunya penataan dalam olah tanah agar menjaga kestabilan dari suatu lahan untuk tanaman Vanili jangka panjang. Selanjutnya faktor pembatas untuk penggunaan lahan tanaman Vanili di pedon (Profil-1, 2 dan 3) yakni lapisan atas yang bertekstur sedang dan kurangnya kandungan bahan organik, N dan K, bertekstur liat yang tinggi serta drainase tanah yang kurang baik
Dispelling the Myths Behind First-author Citation Counts
We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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