24 research outputs found

    Nitrogen Transfer of Two Cultivar Faba Bean (Vicia faba L.) to Oat (Avena sativa L.)

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    Nitrogen fixed by the legume could be used by other plants, such as through rhizodeposition and direct transfer between roots.  The possibility of N transfer in intercropping legum-cereal have long been observed, especially legum with short and dense root.  This experiment had been carried out to determine whether there was N transfer from faba bean (Vicia faba L.) growing in association with oat (Avena sativa L.) and whether there was difference between two cultivars of faba bean in the amount of N transfer.  Methods used were complete-mixed-root (CMR) between faba bean and oat, and mixed half the root of faba bean with oat (SR).  As a tracer isotope 15N was used in form of K15NO3.  The experiment was carried out from May 2000 through January 2001 in Institute of Agronomy and Plant Breeding, University of Goettingen Germany.  The data of CMR method had great variance.  Using SR method a positive value of 15N enrichment was found in oat indicated that transfer N from faba bean cv. Minica and Scirocco occurred.  There was no difference found in the amount of N transferred between the two tested cultivars.   Key words: N transfer, 15N, Faba bean, Oa

    Respon Pertumbuhan dan Produksi Kacang Tanah (Arachis hypogaea L.) terhadap Sistem Tanam Alur dan Pemberian Jenis Pupuk

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    Penelitian ini bertujuan untuk mempelajari pengaruh sistem tanam alur dan pemberian jenis pupuk terhadap pertumbuhan dan produksi kacang tanah (Arachis hypogaea L.). Penelitian dilaksanakan di KP Leuwikopo IPB Dramaga, Bogor pada bulan Februari - Juni 2013. Percobaan menggunakan rancangan petak terbagi (Split Plot Design) dengan perlakuan terdiri dari dua faktor, yaitu sistem tanam alur sebagai petak utama dan jenis pupuk sebagai anak petak. Hasil penelitian menunjukkan bahwa perlakuan sistem tanam alur meningkatkan daya hasil pada produktivitas biji kering, produktivitas polong kering, dan bobot kering biji per tanaman lebih baik dibandingkan sistem tanam konvensional. Hal tersebut ditunjukkan dengan perlakuan sistem tanam alur yang memiliki produktivitas 2.93 ton/ha polong kering, sedangkan sistem tanam konvensional sebesar 2.55 ton/ha polong kering. Sistem budidaya kacang tanah pada sistem tanam alur dapat meningkatkan efisiensi tanaman dalam memanfaatkan unsur hara yang telah diberikan baik pupuk organik maupun anorganik, sehingga pertumbuhan dan hasil tanaman kacang tanah menjadi lebih baik. Pemberian jenis pupuk kandang ayam + Dolomit + NPK memberikan respon terhadap pertumbuhan dan  daya hasil rata-rata tanaman yang lebih baik dibandingkan jenis pupuk lainnya

    Facilitating and motivating factors for reporting reprehensible conduct in care: A study among nurse practitioners and physician assistants in the Netherlands

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    Rationale, aims and objectives The aims of this study are as follows: (a) to establish whether a relationship exists between the importance that healthcare professionals attach to ethics in care and their likelihood to report reprehensible conduct committed by colleagues, and (b) to assess whether this relationship is moderated by behavioural control targeted at preventing harm. Method In this cross-sectional study, which was based on a convenience sample (n = 155) of nurse practitioners (NPs) and physician assistants (PAs) in the Netherlands, we measured ethics advocacy (EA) as a motivating factor (reflecting the importance that healthcare professionals attach to ethics and care) and "behavioral control targeted at preventing harm" (BCPH) as a facilitating factor. "Reporting reprehensible conduct" (RRC) was measured as a context-specific indicator of whistleblowing intentions, consisting of two vignettes describing morally questionable behaviour committed by colleagues. Results The propensity to report reprehensible conduct was a function of the interaction between EA and BCPH. The only group for which EA predicted RRC consisted of individuals with above-average levels of perceived BCPH. Conclusion The results suggest that the importance that healthcare professionals attach to ethical aspects in care is not sufficient to ensure that they will report reprehensible conduct. Such importance does not induce reporting behaviour unless the professionals also perceive themselves as having a high level of BCPH. We suggest that these insights could be helpful in training healthcare providers to cope with ethical dilemmas that they are likely to encounter in their work

    Penurunan Kadar Rhodamin B dalam Air Limbah dengan Biofiltrasi Sistem Tanaman

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    The textile industry is growing rapidly and as the result it's producing waste that can harm the environment. One of which is rhodamine B. Rhodamine B is a synthetics dyes that have a form crystalline which an organic base containing amino groups, so it is difficult to degrade naturally by microorganism. Biofiltration system method is one of many ways in handling wastewater. Layered filtration unit of sand and rocks combine with the adsorption of plant and decomposition by microorganisms in rhizosphere so that wastewater can be reused. The aim of this study determined effectiveness and capacity of biofiltration system vegetation in reducing concentrate of rhodamine-B, total dissolved solid (TDS), total suspended solid (TSS) and the pH in wastewater. The result showed that biofiltration effectiveness in reducing rhodamine B, TDS and TSS concetrate were 51,70%; 47,60%; 50,44% while decreasing and stabilization of pH obtained at 30 hours treatment time with pH value is 7,5. Capacity of biofiltration system vegetation with volume 0,06 m3 can reduced rhodamine B, TDS and TSS by 0,2256 ppm; 278,0237 ppm and 9,4978 ppm respectively, while the optimum detention time of wastewater in the biosystem for reducing rhodamine B was 30 hours and for TSS and TDS was 36 hours. It can be concluded that biofiltration system vegetation was able to reduce rhodamine B, TDS, TSS and pH of wastewate

    Statur Antibodi Anak Balita Setelah Kegiatan Pin I di Kalimantan Tengah

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    Status Antibodi Anak Balita terhadap Virus Entero -71 di Kota Wisata Denpasar Bali

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    Telah dilakukan penelitian status antibodi anak Balita terhadap virus entero-71, penyebab Hand Foot and Mouth Disease, di kota Denpasar Bali tahun 2002. Tujuan penelitian adalah untuk mengetahui seberapa luas penyebaran virus entero-71 di Indonesia. Apakah penyakit tersebut kemungkinan dibawa oleh para turis masuk ke Indonesia setelah ada wabah di negara tetangga (Malaysia, Singapura,Taiwan dan Australia)? Lokasi penelitian dilakukan di Denpasar sebagai kota wisata dan Kebumen daerah pedalaman (bukan ibukota dan bukan kota wisata). Sampel penelitian adalah anak-anak yang berumur kurang dari lima tahun sebanyak 200 anak per lokasi. Specimen berupa darah/serum anak yang diambil dengan syring dan needle dari vena di lengan anak. Hasil penelitian menunjukkan bahwa prevalensi infekai virus entero-71 masing-masing di Denpasar (kota wisata) sebesar 45% dan di Kebumen 27%. Dari data kasus yang dilaporkan ternyata hanya 5 kasus di Denpasar yang spesifik menunjukkan gejala HFMD dan dari lima kasus tersebut satu kasus positip entero-71. Dari hasil penelitian ini dapat disimpulkan bahwa di kota wisata Denpasar, dimana banyak turis berkunjung, menunjukkan prevalensi infeksi yang lebih tinggi dibandingkan dengan kota non wisata Kebumen. Dari data tersebut diatas dapat diasumsikan bahwa virus entero-71 memang berasal dari luar Indonesia atau import dari negara tetangga. Disarankan untuk memonitor kasus-kasus HFMD terutama di daerah wisata dan ibukota, dimana banyak dikunjungi orang asing terutama yang datang dari daerah endemis HFMD, dengan melakukan surveilans penyakit HFMD
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