Judul: Precision farming of rice cultivation to increase rice productivity
Abstrak: Salah satu usaha untuk meningkatkan produktivitas padi sawah yaitu dengan pengelolaan pertanian secara cermat (precision farming), yang salah satunya yaitu dengan Perlekatan Pengelolaan Tanaman Terpadu (PTT). Penelitian ini bertujuan untuk melihat perbedaan budidaya antara cara petani, PTT pemerinatah, dan PTT cermat; melihat kualitas hasil panen dariketiga pengelolaan petani, PTT pemerintah dan PTT cermat; dan menigkatkan nilai ekonomi / keuntungan usaha tani padi sawah dengan membandingkan efisiensi input dari ketiga budidaya padi sawah.
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Judul: Persepsi petani dan penerapan inovasi pengelolaan tanaman dan sumberdaya terpadu padi sawah di lokasi Prima Tani, Kabupaten Serang, Provinsi Banten:
Abstrak: Upaya meningkatkan produktivitas padi lahan sawah dapat dilakukan dengan pendekatan Pengelolaan Tanaman dan Sumberdaya Terpadu (PTT). Upaya percepatan diseminasi pendekatan PTT padi pada petani, telah dilakukan dengan berbagai kegiatan seperti: gelar teknologi, model percontohan, temu lapang dan temu wicara. Selain aspek inovasi teknologi, faktor petani sebagai pelaku usahatani juga memegang peranan penting dalam menunjang keberhasilan pemanfaatan inovasi tersebut. Prasyarat yang diperlukan agar peningkatan produksi padi sesuai dengan target yang diinginkan adalah tumbuhnya kesadaran petani akan pentingnya teknologi pertanian. Proses adopsi teknologi memerlukan komunikasi yang efektif, diharapkan terjadi persamaan persepsi antara sumber pesan dengan petani sebagai penerima pesan perihal informasi yang disampaikan. Dengan persepsi yang baik diharapkan tingkat adopsi inovasi meningkat. Dengan demikian penelitian tentang persepsi petani diperlukan sebagai acuan dalam melakukan diseminasi inovasi. Penelitian ini bertujuan mengidentifikasi faktor-faktor yang berhubungan dengan pembentukan persepsi petani tentang pengelolaan tanaman secara terpadu (PTT) pada padi, dan mengkaji hubungan antara persepsi petani dengan tingkat penerapannya. Penelitian dilakukan dilokasi Program Rintisan dan Akselerasi Pemasyarakatan Inovasi teknologi Pertanian (Prima Tani) Serang, di Desa Teras Kecamatan Carenang Kabupaten Serang, Provinsi Banten pada petani peserta PTT padi pada bulan Maret – Mei 2009. Jumlah petani responden adalah 59 petani diambil secara sensus dari populasi yang ada.
Keyword: pengelolaan tanaman secara terpadu, adopsi teknologi, padi sawah, Serang, Banten

Judul: Seroprevalence of Chikungunya and The Risk of Transmission Transmitted Among Blood Donors In Sulawesi-Indonesia
Abstrak: Chikungunya (CHIK) is an arthritogenic alphavirus in the Togaviridae family of arboviruses with an enveloped RNA containing a positive single-stranded 11.8 kb genome. Transmission occurs through the bite of infected Aedes mosquitoes, which are commonly found in tropical and temperate regions. Primary vertebrate hosts include monkeys and humans, in whom this virus replicates efficiently (Diallo et al. 1999). Chikungunya virus (CHIKV) is known for causing acute illness, manifesting with fever, rash, and arthralgia known as Chikungunya fever (Horwood dan Buchy 2015). Despite the high number of Chikungunya cases in Indonesia, comprehensive data are lacking in CHIKV seroprevalence. Previous studies reported the median seroprevalence of anti-CHIKV antibodies in all situations 18.5%, ranging from 0.0 – 73.% (Harapan et al., 2019). However, the gap in epidemiological data of CHIKV in many regions of Indonesia including Sulawesi, is noteworthy. The objective of this study was to determine the seroprevalence of CHIKV infection among healthy individuals from North and South Sulawesi using archive samples. Additionally, an asymptomatic course of CHIKV infection and the high pre-symptomatic viral load as 108pfu/mL (Appassakij et al. 2013) suggest that the infection can threaten blood transfusion safety. Evidence of CHIKV infection among blood donors (Simmons et al. 2016) indicates transfusion-transmitted is probable, although it has not been documented (Petersen dan Epstein 2014). Our study also aimed to test the archive blood donor specimens from North Sulawesi for CHIKV IgM and viremia to determine blood safety in endemic areas. Samples were screened for anti-CHIKV IgG antibodies to determine exposure to CHIKV using an in-house IgG ELISA as previously described (Kosasih et al. 2013) with minor modifications. CHIKV IgM, a marker for recent infection and endemicity, was tested in 303 samples randomly selected from IgG-positive samples using a Euroimmun anti-CHIKV IgM ELISA kit (Luebeck, Germany) following the manufacturer’s instructions. CHIKV RNA detection was carried out using one-step-qRT-PCR. The data generated were analyzed with IBM-SPSS v20 (IBM Corporation, USA). Chi-square (χ2) test to determine significant differences between categorical variables, and a p-value less than 0.05 was considered statistically significant. As many as 1092 serum and plasma samples were analyzed, with CHIK IgG seropositivity at 53.48% (584/1092). The results also show a statistically significant difference in the seropositive rates based on gender (58.8% male and 48.5% female) and region (53.9% South Sulawesi versus 48.7% North Sulawesi). Seropositivity increased with age; approximately half of adults between their 40s and 60s had seroconverted. Most of the participants, 304 (27.8%), were between 21-30 years. The age groups with the least participants were those >60 years and <20 years, with 93 participants each (8.5%), followed by the 51–60-years age group with 142 (13.0%) participants. In addition to IgG, the overall anti-CHIKV IgM seropositivity comprised 12.9% (39/303). A Chi-square analysis shows a statistical significance of anti-CHIKV IgM seropositivity based on gender and region with p-values (p=0.047 and p=0.038, respectively). On the contrary, there was no significant difference in anti-CHIK IgM based on age. The age group with the most participants was the 21-30 years with 19.3% (16/83), while those with the least participants were those >60 years. The current study
Keyword: Chikungunya, Serosurvey, Sulawesi, Blood donors, ELISA, qRT-PCR.