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International Journal of Sustainable Tropical Agricultural Sciences
Published by Universitas Halu Oleo
ISSN : 24067342     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
The International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) is a peer-reviewed journal devoted to the publication of original articles, technical reports, case studies, conference and/or symposium reports, information papers and materials for research work and notes commentaries and news on all aspects related to the sustainable tropical agricultural sciences. It aims at provide an effective channel of communication and disseminate academic information among policy-makers, government agencies, academics and research institutions, and professionals working in the field.
Arjuna Subject : -
Articles 18 Documents
 1   2 
THE IMPACT OF THE GOLD MINING ON THE SOCIAL, ECONOMIC, ANDCULTURAL IN THE BOMBANA DISTRICT SOUTHEAST SULAWESI PROVINCE Usman Rianse; Weka Gusmiarty Abdullah; Abdi La Abdi; Ilma Sarimustaqiyma Rianse; Zulfikar La Zulfikar; Wa Kuasa Baka; La Ode Midi; Weka Widayati
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 1, No 1 (2014)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

The phenomenon of a gold mine brings a lot of changes in people's daily life in the Bombana District. This study aims to: (a) Aware of the social and cultural changes in society before and after the gold mining business, and (b) Knowing the changes in people's income before and after the gold mining business. The study population is the people who are in the gold mining sites.  This study result, namely: (a)  Gold  mining  have  negative impact  on social, economic, and cultural of communities around the gold mining area. Social, economic, and cultural societies tend to be in better shape before the gold mining. Average income communities after the gold mining increase by Rp 755.392 per month. (c) Gold mining do not increase the welfare of society, especially for farmers. The implication of this study is the government should strictly supervise and tighten even a moratorium against IUP, and gold mining companies should have corporate social responsibility (CSR) in the form of incentives to the affected communities of the businesses under their management in the fields of education, health, agriculture, economics, and culture as well as other aspects relating to the welfare of society.
PERFORMANCES OF VILLAGE CHICKEN FOLLOWING CROSS BREEDING WITH DIFFERENT BREEDS OF CHICKEN Takdir Saili; Rusli Badaruddin; La Ode Nafiu
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 1, No 1 (2014)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

The performances of village chicken in South-east Sulawesi, Indonesia were typically small and light weight, and low productivity of both egg and meat. However, they more resistant to disease compared to other breed of chicken such as commercial broiler or layer. Therefore, in this research the more productive breed of cocks were used. The objective of this research was to improve productivity of the village chicken using different breeds of cock. Bangkok-crossed breed chicken, commercial broiler and village chicken were used to mate the hen of village chicken using artificial insemination.  Variables measured were egg fertility, egg hatchability, and day old chick weight of village chicken crossed by different breeds. Duncan multiple range test was applied to compare the averages of each data. The results showed that the higher egg fertility and hatchability were obtained when crossing the hen of village chicken and bangkok-crossed breed cocks, although no statistical differences was showed between breeds of cock. The average of day old chick weight was also higher in a group of village chicken hen crossed by bangkok-crossed breed cocks compare to other breeds, but no significant differences was showed. It was concluded that the bangkok-crossed breed cocks tended to be a good candidate for increasing the productivity of village chicken.
BIOLOGICAL SEED TREATMENT FOR CONTROLLING ANTHRACNOSE DISEASE OF HOT PEPPER G.A.K. Sutariati; Widodo .; Sudarsono .; S. Ilyas
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 1, No 1 (2014)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

Three rhizobacteria (Bacillus polymixa  BG25,  Pseudomonas fluorescens  PG01 and Serratia liquefaciens SG01) which inhibited the conidia germination of Colletotrichum capsici  and produced the phytohormone indoleacetic acid (IAA) were selected and evaluated as biocontrol agents for controlling Colletotrichum capsici, the causal agent of hot pepper anthracnose and for improving the growth, yield and seed quality of hot pepper in glasshouse and field conditions. Two cultivars of hot pepper, cv. Lokal Brebes and cv. Tit Super were also used in this experiment. The result of the experiment showed that seed treatments with P. fluorescens PG01 either alone or in combination with B. polymixa BG25 increase yields and seed quality under glasshouse and field conditions. However, the most effective treatment was the combination of both agents. Moreover, biological seed  treatment with P. fluorescens PG01 either alone or in combination with B. polymixa BG25 led to induction of resistance against C. capsici, as a result of increase in peroxidase activity and biosynthesis of phytoalexins that have been considered as resistance mechanisms against plant diseases.
RADIATION USE EFFICIENCY AND SOIL WATER CONTENT ON MAIZE-MUNGBEAN INTERCROPPING Laode Sabaruddin; L.M. Harjoni Kilowasid; Hasbullah Syaf; La Ode Afa; Lies Indriani
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 1, No 1 (2014)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

Mungbean is traditionally intercropped with maize by small-scale farmers which do widely in the tropics, including Southeast Sulawesi.  This study aims  to  assess the radiation use efficiency (RUE) and soil water content (SWC) in maize intercropped with mungbean. The research was arranged on Split-Plot Design of  two factors, i.e. dose of “komba-komba” compost as the main plot consists on 5 t ha-1 and 10 t ha-1 and planting time of mungbean as a subplot, consists on planting mungbean with maize at the same time, delayed planting of mungbean 7 and 14 days after planting (DAP) of maize.  The results shown  that the highest RUE of maize 2.69 g MJ-1 and 3.15 g MJ-1 obtained on komba-komba compost dose 10  t ha-1 and planting mungbean 7 DAP of maize, while highest RUE of mungbean  0.31  g MJ-1  and  0.60  g MJ-1  obtained  on  komba-komba compost dose 10 t ha-1 and planting mungbean and maize at the same time, respectively.  The  soil  temperature  has  negatively correlated with  (SWC)  that  at  the  komba-komba compost with rxy = - 0.7422 and at the time planting of mungbean in intercropping with maize with rxy = - 0.7922.
THE RELATIONSHIP BETWEEN PERFORMANCE AND BENEFITS OF AGRICULTURAL COOPERATIVE TOWARD FARMERS’ ECONOMY AND BEHAVIOUR IN THE DISTRICT OF KOLAKA Ilma Sarimutaqiyma Rianse; Usman Rianse; Slamet Hartono; Any Suryantini; Wa Kuasa
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 1, No 1 (2014)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

This study aimed to determine: (1) an analysis of the cooperative’s performance based on the  agricultural  criteria  in  the district  of Kolaka, according to  the guidelines  on cooperative fostering and  cooperative  classification;  (2)  the performance of  the cooperative  as perceived by  farmers  and  cooperatives management;  (3) determine  the benefits gained by farmers as members of cooperatives; (4) an analysis of the relationship between performance and the benefits obtained by farmers as a cooperative member. The results showed that,  based on the  Guidelines  for  Cooperatives  Classification,  the performance of agricultural cooperatives in Kolaka in 2007 was on the average of 61.58 and fell within the “quite well” category. In 2008 the average performance of 62.05 and cooperatives are included in the category quite well. In2009, the average performance of the cooperatives was  62.38, remaining in the same  category.  In 2010  the  average performance was 61.28, also staying  in the category of “quite well”. Furthermore,  the management of cooperatives as well as the majority of stakeholders considered that the agricultural cooperatives in Kolaka met the criteria of “quite well”, as many as 48.75%. The majority of  respondents  (65%) considered the agricultural cooperatives  in Kolaka helpful.  Based on  SEM  analysis,  the relationship  of  the agricultural  cooperative performance was found  to be positively correlated  to the benefits obtained by farmers. Standardized  coefficient  value  of 0.85  has a value  of  14.40t statistic.  Standardized coefficient value of 0.85 indicates that the performance and benefits of the cooperative have  a real  relationship  closeness.  Sequentially  the  components  of  performance  that contribute  from  the  largest to  the smallest are, firstly, the concern for the community, which is equal to0.86. The component of voluntary and open membership component is 0.80.  The component of  democratic  control  by members  is 0.79.  The component of economic participation of member is 0.71. And the component of education and training is  0.25.  Regarding the  components of  the  cooperative  benefits,  the components that contributes  sequentially,  from  the  largest to  the smallest, are  the economic benefits of marketing,  that is equal to 0.96;the benefits of a large savings and loan with 0.88;  the economic benefits of farmers needs 0.86; and social benefits 0.48.
COMPARATIVE STUDIES ON PHYSICOCHEMICAL PROPERTIES OF THE MINERAL SOILS IN THE MAJOR SAGO-PALM (METROXYLON SAGU ROTTB.)-GROWING AREAS OF EASTERN INDONESIA Fransiscus Suramas Rembon; Yulius Barra Pasolon; Yoshinori Yamamoto; Tetsushi Yoshida
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 1, No 1 (2014)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

Physicochemical properties of the mineral soils, under major sago-palm-growing areas in  the eastern  Indonesia around Sentani near Jayapura, Papua  Province (hereafter Jayapura);  Kairatu,  Seram Island, Maluku Province (Seram);  Kendari, Southeast Sulawesi Province (Kendari); were studied and compared. The soil samples of 0-15 cm and 15-30 cm depth were collected from every site, respectively, from September 2005 to January 2008. The results revealed that the average of physicochemical properties of the soils from 0-30 cm depth  in  the sago-palm-growing areas varied depending on  the site.  Soil bulk densities were  averagely  higher  in Seram (1.35 g cm-3)  than those  in Kendari (0.98 g cm-3) and Jayapura (0.89 g cm-3). Soil textures around Jayapura were dominated by silty loam. While in Seram soil texture was dominated by silty loam and loam,  and around Kendari  it was dominated by  sandy loam,  loam  and silty clay. The averages of soil pHs were slightly acid (6.4) in Jayapura, acid in both Seram (5.5) and Kendari (4.9). Total carbons (total-C) in Kendari were higher (30.5 g kg-1) than those in Jayapura (27.2 g kg-1) and Seram (9.9 g kg-1). Based on the averages of nutrient contents including the CEC and the total-C, the sago-palm-growing areas showed the same trend in the order of Kendari > Jayapura > Seram in the CEC, total-N and total-C. On the other hand, the exchangeable-K, and the available-P were showed the trend in the order of Jayapura > Seram > Kendari. Variations of soil fertility such as the exchangeable-K, CEC, and total-N among the soils collected sites in each area are higher in the order of Kendari > Jayapura > Seram. And also we tried to discuss about the relation between the soil physicochemical properties and the reported growth parameters or starch productivity of sago palms grown on the same researched areas.
CHEMICAL COMPOSITION AND IN VITRO RUMINAL FERMENTATION CHARACTERISTIC OF SONNERATIA ALBA Dian Agustina; Takdir Saili; Nursanty Asminaya
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 1, No 1 (2014)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

The aim of study was to determine chemical composition and comparison of nutritive value of  Sonneratia alba  and other forages (Gliricidia sepium  and  Leuchaena leucochepala) by using in vitro gas production technique. The result showed  crude protein  content in S. alba was lower than that G. sepium (p<0.05) and L. leuchochepala. The NDF content among treatments non significant difference. The ADF and lignin content  S. alba were the highest. VFA production and dry matter degradability of  S. alba comparable with G. sepium and L. leuchocepala.The ammonia-N production S. alba higher than G. Sepium  but showed  lower than  L. leuchocepala.  In conclusion, according to the chemical composition Sonneratia alba was a high-quality feed resources. Utilization of Sonneratia albaby ruminal microorganism in vitro was available. Further in vivo  studies could be required to expand the knowledge of the nutritive value Sonneratia alba.
LAND SUITABILITY AND PROBLEMS ASSESSMENT FOR FOOD CROP DEVELOPMENT BASED ON PEDO-AGROCLIMATE AND RESOURCE MANAGEMENT Aminuddin Mane Kandari; Sumbangan Baja; Ambo Ala; Kaimuddin .
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 1, No 1 (2014)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

This  study specifically aimed to:  (i) identify of pedo-agroclimate characteristics, (ii) evaluate of  potential avaibility land,  suitability  land  and  problems  for food crops development, (iii) develop planting  and land  recource  management.  This  study was conducted  on  the mainland Buton  Regency, the  used  a spatial analysis method employing GIS.   The study  results showed that: (i) the mainland Buton  regency had relatively varied characteristics of land biophysic. For climate aspects, the region had low and uneven distributed rainfall; (ii)  potential land avaibility for food crops development in study area was : 74,664.64 ha, where the land suitability level of S2 of 5,096.52 ha, S3 of 44,521.38 ha, and the rest was N1 and N2.  The Land suitability classes for crop plant in the study area were: S3 and N1 except for cassava, there were S2, S3, and N. Similar problems were found in almost all areas, i.e. high soil pH >7  -8.5 or low 4 - 4.5, P2O5 content was very low, high air humidity  > 90% or low < 30%, high erosion risk, high slope >15 - 25%, high level of surface rocks >40%, high level of surface layer >40%, very high erosion risk, very high slope >25%), shallow effective dept < 20 cm; (iii) the land resource management, suggested were  improvements: i.e: drainage system, nutrient retention through liming and addition of organic matter for CEC and pH, nutrient availability through liming and fertilization, mechanization potency on slopy area, erosion risk level through reducing erosion rate, making terrace, parallel contour planting, cover crop planting, terrace construction for rice at slopes 3 -8%  and  8 - 15%, water availability through improvement of irrigation system.
ANALYSIS OF POTENTIAL DEVELOPMENT OF INLAND FISHERY IN THE DISTRICT OF EAST KOLAKA Lukman Yunus; Muhammad Ramli; Yusnaeni Yusnaeni; Muhammad Aswar Limi
International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS) Vol 2, No 1 (2015)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences (IJSTAS)

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Abstract

ABSTRACTThe existence of Fishery Potential resources in the county of East Kolaka is a comparatif advantage that will be valuable if it is supported by analysis of potency about inland fishery development according to the area characteristics. The objectives of this research are to analyze the strategies and potencies of inland fishery in East Kolaka. The research location was focused on the center of inland fishery development in all districts areas. The method of data analyses were consist of qualitative, quantitative and spatial analyses. From the result of this research, it can be concluded that: (a) The district of Ladongi and Mowewe are considerably accepted as the center of fish breeding, (b) the center of fish maturation in the development of inland fishery is divided into five subclusters, (ponds, rawa, bendungan/waduk, river and persawahan, (c) the center of inland fish pocessing consists of two subclusters which are cullinary and fishery product diversivication.Keywords: potency, development, inland fishery.
THE ANALYSIS OF ADDITIONAL VALUE OF BROWN-PALM-SUGAR AGROINDUSTRY IN Kolaka Rianse, Ilma Sarimustaqiyma; Hartono, Slamet; suryantini, Any; Jamhari, Jamhari; Darwanto, Dwidjono Hadi; Widodo, Sri; Waluyati, Lestari Rahayu
International Journal of Sustainable Tropical Agricultural Sciences Vol 2, No 1 (2015)
Publisher : International Journal of Sustainable Tropical Agricultural Sciences

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Abstract

AbstractBrown-palm-sugar agroindustry in Kolaka is an industrial model that tends to have a simple character for moldable sugar processing. Moldable brown palm sugar is produced by processing of unfermented palm-juice. Its processing into brown-palm-sugar can provide additional value as reward for the usage of production factors. The additional value is multiplier effect that occurs in an agroindustrial activity. The strategical role of agroindustry that relies on increasing of the additional value of domestic natural resource potency is believed to be capable of supporting in national competitive improvement.This study is objected (1) to recognize the additional-valuable amount in processing unfermented palm-juice into brown palm sugar; (2) to determine the influence factors in brown-palm-sugar additional value. Additional value analysis which was using hayami method demonstrates that the additional value whose craftsmen of unfermented-palm-juice into brown-palm-sugar process received is 696.51 rupiahs per kilogram. The other input prices (such as the price of palm oil, lime price and firewood) and labor costs significantly and negatively effected on the additional value, while the output price significantly and positively effected. And then, the price of unfermented palm-juice unsignificantly effect on the additional value.Keywords: agroindustry; brown palm sugar; additional value

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