Bogor Agriculture Institute

Bogor, Indonesia

Bogor Agriculture Institute

Bogor, Indonesia
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Sarjito,Diponegoro University | Haditomo A.H.C.,Diponegoro University | Desrina,Diponegoro University | Ferinandika F.B.,PT. Perindo | And 2 more authors.
Jurnal Teknologi | Year: 2016

Infectious of ectoparasites and vibrios were found as a problem in fattening mud crab. The aims of this study were to determine the clinical sign of infected mud crabs and to identify the ectoparasites and generic vibrio in the fattening mud crabs from Pemalang Coast, Indonesia. Ectoparasites were collected by smear method. Whereas, 20 isolates were collected from hepatopancreas, gills, hemolymph and injured carapace of the mud crabs. Thiosulphate Citrate Bile Salt Sucrose (TCBS) medium was used to isolate suspected vibrios. The clinical signs of mud crabs infected by ectoparasites were shown through the damaged gills and the attachment of other organisms on the gills, whereas the clinical signs of mud crabs infected by vibriosis were shown through red spot on carapace and wound in carapace, claw and abdomen, followed by weak condition. It also indicated that seven ectoparasites were Ichthyobodo sp., Epistylis sp., Carchesium sp., Vorticela sp., Octolasmis sp., Lepeophtherius sp, and Copepodit sp., whilst five Vibrios were V. harveyi, V. Cholerae, V. parahaemolyticus, V. alginolyticus and V. fischeri. © 2016 Penerbit UTM Press. All rights reserved.


Aliyah M.,University of West Sulawesi | Aliyah M.,Bogor Agriculture Institute | Susanto S.,Bogor Agriculture Institute | Sukma D.,Bogor Agriculture Institute | Ardie S.W.,Bogor Agriculture Institute
Asian Journal of Agricultural Research | Year: 2015

Pummelo (Citrus maxima (Burm.) Merr.) is one of important horticulture commodity in Indonesia. Most of pummelo which is cultivated in Indonesia came from grafted seedling. There are some problem in using grafted seedling, namely: Limited number of plant material, the size of grafted seedling is not uniform and heavy grafted is caused damaging to mother plant. One of alternative seedling performance improvement of pummelo is by strangulation and pinching. This research conducted aimed to study the effect of combination of strangulation and pinching to change the performance of young pummelo. The treatment of strangulation and pinching on young pummelo showed significant difference to the variables observed. Interaction between strangulation and pinching showed significant difference on root and canopy dry weight. Combination treatment of double strangulation with pinching produced early bud emergence, more number of leaves, wider leaf area, elongation and larger stem diameter. © 2015 Knowledgia Review, Malaysia.


Amisnaipa,Indonesian Agency for Agricultural Research and Development | Susila A.D.,Bogor Agriculture Institute | Susanto S.,Bogor Agriculture Institute | Nursyamsi D.,Indonesian Agency for Agricultural Research and Development
Journal of Agronomy | Year: 2014

Calibration of soil P test is a stage in determining P fertilizer rate that appropriate to plant requirement and soil nutrient availability. Research on soil test calibration conducted by field trials on pepper response to P fertilization on various nutrient status in Inceptisols soil from the lowest to highest. This research has been conducted from August 2012 to April 2013 in district of Prafi, Manokwari, West Papua. The research was conducted in order to determine the class of P nutrient availability and calculates the recommended P fertilizer for pepper on Inceptisols soil. Treatment placement use split-plot design with three replications. Treatment in the main plot is constructing P soil nutrient status, namely: Very low (OX), low (1/4X), medium (1/2X), high (3/4X) and very high (IX), where X = 1730.16 L H3PO4 ha-1 or 5.69 H3PO4 plot-1. Subplot treatment is rate of P fertilizer, namely: 0, 40, 80, 160 and 320 kg P2O5 ha-1. The results showed that P fertilization on Inceptisols with P status very low to moderate significantly effect on the growth and yield of pepper, while at high and veiy high status, the effect is not significant. Class of soil P nutrient availability with three extractors each for veiy low, low, medium, high and veiy high are: Bray I (<185, 185-<472, 472 -<1027, = 1027, >1027 ppm P2O5), Olsen(<107,107-<338,338-<837 ppm, = 837, >837 ppmP2O5), danMechlich(<533,533-< 982, 982-1811 ppm P2O5). The needs of optimum P fertilizer for pepper cultivation on inceptisols with class of nutrient availability very low, low and moderate are: 148.24, 111.56, dan 85.75 kg P2O5 ha-1, respectively. Inceptisols with high and very high nutrient availability does not require P fertilizer but for maintanance purposes of as much as 3.75 kg P2O5 ha-1 is needed. © 2014 Asian Network for Scientific Information.


Amisnaipa,Indonesian Agency for Agricultural Research and Development | Susila A.D.,Bogor Agriculture Institute | Nursyamsi D.,Indonesian Agency for Agricultural Research and Development | Purnomo D.W.,University of Indonesia
Journal of Agronomy | Year: 2016

Background and Objective: Research on soil test calibration has been conducted through field experiment on pepper responses to potassium (K) fertilization at various K soil nutrient status. The objectives of this study were to determine class of K soil nutrient availability and calculate recommended K fertilizer for pepper cultivation on inceptisols soil. Methodology: This study used single location approach, where the treatment were randomized according to split-plot design with three replications and conducted in SP-1 Prafi Manokwari from December, 2012 to July, 2013. The treatment of the main plot is prepare K soil nutrient status through K fertilizer application with 5 doses, namely: 0 X (Very low), 1/4 X (low), 1/2 X (medium), 3/4 X (high) and X (very high). Dose X is application of K fertilizer as much as 367.54 kg K ha-1 to achieve very high K content in the soil. Treatment on subplot is the dose of K fertilizer, namely: 0, 40, 80, 160 and 320 kg K2O ha-1. Results: The results showed that K fertilization on soil with very low-medium K soil status has significant effect on the growth and yield of pepper, while high and very high K soil status has not significant effect. Class of K soil nutrient availability based on two extractors for very low, low, medium, high and very high, respectively are as follows: Morgan Vanema (<114, 114 to <228, 228 to <460, = 460 and >460 ppm K) and HCl 25% (<5960, 5960 to <6645, 6645 to <8100, = 8100 and >8100 ppm K). Conclusion: The maximum dose of K fertilizer recommended for pepper cultivation on inceptisols with K nutrient availability very low, low and moderate are: 165.00, 148.50 and 127.50 kg K2O ha-1, respectively, while high-very high class of K nutrient availability does not require fertilization. © 2016 Amisnaipa et al.


Sudarsono W.A.,University of Indonesia | Melati M.,Bogor Agriculture Institute | Aziz S.A.,Bogor Agriculture Institute
Agrivita | Year: 2014

The study was addressed to investigating the effect of cow manure application rate on organic rice growth and yield in the first cropping season. The study was conducted from January to April 2012 in Blora, Central Java, Indonesia. The experiment was arranged in Randomized Complete Block Design, consisting of four treatments and four replications. There were two types of control treatments i.e. organic fertilizer treatments (statistically analyzed) and conventional fertilizer (not statistically analyzed). The treatments were corn biomass, corn biomass+cow manure (7.5 tons ha-1), corn biomass+cow manure (10 tons ha-1) and cow manure (10 tons ha-1) with square spacing of 20 cm × 20 cm. The organic control treatments were corn biomass+sheep manure (7.5 tons ha- 1) with spacing of 20 cm × 20 cm and corn biomass+cow manure (7.5 tons ha-1) with double-row spacing of 40 cm × 25 cm × 15 cm. For every treatment, the rate of corn biomass was 3 tons ha-1. All organic treatments were also added with 3 tons rice hull ash ha-1. The application of cow manure (10 tons ha-1) with square spacing or corn biomass+cow manure (7.5 tons ha-1) with double-row spacing resulted in better performance than those of other treatments. © 2014, Agriculture Faculty Brawijaya University. All rights reserved.

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