318 research outputs found

    Pertumbuhan Tanaman Kelapa Sawit (Elaeis Guineensis Jacq.) Pada Media Campuran Gambut Dengan Effluent Di Pembibitan Utama

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    This research aimed to observe the effect of deposited effluent application on land application in the peat medium on growth of palm oil seedlings in the main nursery. The research was conducted at the experimental field of the Faculty of Agriculture, University of Riau, Jl. Bina Widya km 12.5 Simpang Baru Villae, Tampan District, Municipality of Pekanbaru. The experiment was conducted for 3 months, starts from February to April 2013. The research was conducted as experiments using Completely Randomized Design (CRD) non-factorial that consisting of 5 treatments and 3 replications. To see the differences between treatments tested Duncan New Multiple Range Test (DNMRT) at the 5% level. Parameters were observed are increased seedling height, increased leaf number, increased diameter stump, root volume, dry weight ratio of roots and canopies of palm oil seedlings. Result of research have shown that effluent application with various doses significantly affected all parameters

    Aplikasi Kompos Tandan Kosong Kelapa Sawit Dan Dolomit Pada Medium Sub Soil Inceptisol Untuk Pembibitan Kelapa Sawit (Elaeis Guineensis Jacq.) Di Pembibitan Utama

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    The purpose of this research is determining the effect of some treatment combinations and to determine the combination of best compost bunches empty palm oil and dolomite that could support growth seeds palm oil plantations in a main nursery. This research has been conducted in the experimental field, Agriculture Faculty, University of Riau from April to July 2015. The research used Completely Randomized Design Factorial that consisting of two factors. The first factor is giving compost bunches empty palm oil which consist of three levels, they are: K1= 37,5 g/polybag, K2= 75 g/polybag and K3= 112,5 g/polybag. The second factor is giving lime dolomite (CaMg (CO3)2) which consist of three levels, they are: D1=9 g/polybag, D2= 18 g/polybag and D3= 30 g/polybag. Both of these factors resulted in 9 treatsments combination. Each combination made three replications, so that there are 27 experimental units. Each experimental unit consisted of two plants, so the total crop was 54 plants. The data were statistically analyzed using analysis of variance and the means were tested with Duncan 's New Multiple Range Test (DNMRT) at level of 5%. The research results show that combination of compost bunches empty palm oil and dolomite had show the real effect on the increase in diameter hump of seedlings , but the effect not real on the parameters height of seedlings,increase number of leaves, volume roots, ratio crown rootsand and dry weight of seedlings. Combination compost bunches empty palm oil 112,5 g/polybag and dolomite 18 g/polybag showed better results for the growth of palm oil seedlings

    Pengaruh Jerami Padi Dan Rasio Pupuk Urea, Tsp, Kcl Terhadap Pertumbuhan Dan Produksi Kedelai ( Glycine Max (L) Merril. )

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    This research was conducted to find out the effect of rice straw and ratio of Urea, TSP, KCL on the growth and production of soybean. This research has been conducted in the experimental farm, Faculty of Agriculture University of Riau, from January to April 2016. This study used randomized block design (RAK), arrange in a factorial with 2 factors, factors of rice straw mulch with 3 levels doses of 0 kg/Ha, 5 kg/Ha, 10 kg/Ha and factor ratio of Urea, TSP, KCL with 4 levels doses of 0 kg/Ha, 25, 50, 50 kg/Ha, 50, 100, 100 kg/Ha, 75, 150, 150 kg/Ha, two factors combined to obtain 12 combined treatment, for each treatment consisted of three replications, in order to get 36 experimental units. The data were analyzed by analysis of variance and significantly different continued with Duncan New Multiple Range Test (DNMRT) at 5% level. Each experimental unit consisted of 52 plants, only seven plants become sample. The parameters measured were the number of the effectiveness root nodules per plant, the growth rate of plants, weeds, number of pods per plant, pods percentage pithy, dry seed weight/m2, and the weight of 100 seeds. Research data show that rice straw dose of 10 ton/Ha and ratio of Urea, TSP, KCl doses of 50, 100, 100 kg/Ha produces a dry seed weight of 2,69 tons/Ha, higher than without treatments is 1,3 tons/Ha

    Perubahan Sifat Fisik Gambut Akibat Kebakaran di Desa Teluk Binjai Kecamatan Teluk Meranti Kabupaten Pelalawan

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    This research is conducted to compare the physical characteristic change between burnt & unburnt peat soil and also to understand its change on both seven days & four months after burn. This research is held in “Teluk Binjai Village, District ofTeluk Meranti, Regency ofPelalawan” and its physical analysis is held at Soil Science Lab of Riau University Agricultural Faculty on January until June 2014. Moreover, it uses survey method to determine its location and purposive sampling for sampling method. Both peat soil sampling & field observation are done twice. First sampling is conducted on seven days after burn and the second sampling is done four months later (after burn). Its data analyzed by using descriptive statistic and presented on tables & graphs. In addition, the observed parameters are Particle Size Distribution (PSD), water holding-capacity, Bulk Density (BD), Particle Density (PD), porosity and permeability. The results show that fire on peat land causes physical characteristic change on peat soil with the sign of decreasing on water holding-capacity, porosity and permeability. Meanwhile, both Bulk Density (BD) and Particle Density (PD) are increasing on the burnt rather than the unburnt one. Physical characteristic change of peat soil from seven days until four months after burn causes re-increasing on water holding-capacity, porosity and permeability at the depth of 10-20 cm. Moreover, there are increasing on fine particle size (88 µm and 106 µm) at the depth of 10-30 cm and increasing on both Bulk Density (BD) & Particle Density (PD) at the depth of 20-25 cm

    Spectrum of Paediatric Lysosomal Storage Disorders in Oman

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    Objectives: The aim of this study was to look at the spectrum of paediatric lysosomal disorders in Oman. Lysosomal storage disorders (LSDs) are a heterogeneous group of inherited metabolic diseases. Few studies on the birth prevalence and prevalence of LSDs have been reported from the Arabian Peninsula. Methods: We studied 86 children with LSDs diagnosed over a period of nine years, from June 1998 to May 2007. Detailed clinical data, including age of onset, sex, age and mode of first presentation, and presence of consanguinity were collected. Results: Our data showed the combined birth prevalence for all LSDs in Oman to be around 1 in 4,700 live births. Sphingolipidoses was the most common group of disorder encountered (47.7%), followed by neuronal ceroid lipofuscinoses (NCL) (23.2%) and mucopolysaccharidoses (MPS) (23.2%). The proportion of consanguineous marriages in our series was found to be 87.5%. Conclusion: Our data represent the birth prevalence and clinicalspectrum of such disorders in Oman, one of the highly consanguineous societies in the Middle East.
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