Judul: Perbandingan persepsi masyarakat terhadap hutan rakyat berbasis karet dan kebun kelapa sawit
Abstrak: Palm oil as one of Indonesian main export commodities shows rising trend and presumed affecting the societies of various regions in using land. Oil palm plantation furthermore became the main competitor for traditional farming systems, such as rubber community forest in Sumatera. Sipaho administratively located in Padang Lawas Utara District, which is an agricultural area of rubber production centers in North Sumatra. Rubber plantations in this region owned by community and developed extensively, mostly in agroforestry system. This research aims to analyse and compare Sipaho society perception to rubber community forest and oil palm plantation, and identify its influencing factors. Moreover, it also assessed the contributions of both plantation types to household income. Data were obtained through literature studies and interviews with 62 respondents that represent rubber farmers, rubber and palm oil farmers, and non farmers. Intake of respondents used purposive sampling method. Study result shows that respondents have medium perception on medium to socioeconomic, ecology, and socioculture aspects of rubber community forest as well as oil palm. Perception to rubber community forest were influenced by schooling period, land ownership, and income, while the perception to oil palm plantation correlated with age. Regarding to economic aspect rubber community forest and oil palm plantation contributed 47% and 43% on household income from agricultural sector.
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Judul: A Study of Oil Palm Plantation in Sukabumi Regency: Land Suitability and Socio-Economic Approach
Abstrak: The increase of the world oil palm demand, encourage Indonesia to develop oilm palm industry both of expansion and conversion. Commodity crop conversion can be interpreted as a change in the cropping system from one crop commodity to another. As happened in Sukabumi Regency, West Java, commodity crops have been converted from rubber and tea to oil palm on state-owned plantation land. This research analyzes land suitability and consistency, social conditions, and the standard of living of oil palm plantation workers in the Sukabumi Regency. The data used in this study are primary data and secondary data. The method used is the visual interpretation of satellite imagery, overlay, table matching using ArcGIS, and different tests using SPSS software from the results of interviews with respondents using a questionnaire. The results show that the percentage of land area converted to commodity crops from rubber and tea to oil palm continued to be massive from 2002 to 2020. The conversion was made because the selling price of the previous commodity continued to fall. The land suitability level of state-owned oil palm plantations in Sukabumi Regency is dominated by category S3. 95% of oil palm plantations in Sukabumi Regency are following the 2011-2032 Sukabumi Regency spatial planning. The conversion of commodity crops from rubber and tea to palm oil has a positive impact on improving the social conditions and the standard of living of oil palm plantation workers. The eight recommendations are prepared based on an analysis of land suitability and consistency of land use with spatial plans. Other recommendations given are based on the social conditions and standard of living of plantation workers. It is hoped that this will form an independent local workers' association to increase the gaining power to demand justice, rights and proper welfare for workers and their families. In addition, the existence of associations can also mutually control the performance of workers in carrying out their obligations.
Keyword: Commodity crop conversion, land suitability, land consistency, social conditions, standard of living

Judul: Pengujian Virus Newcastle Disease Gen VII Isolat Lapang Sebagai Virus Standar Pada Uji Tantang Vaksin
Abstrak: This study was conducted to determine the standard of Newcastle disease virus Gene VII field isolate as a virus challenge to vaccine test. A virus suspension that has previously been tested by HA test then titrated with EID50 using 30 Specific Pathogen Free (SPF) of 10 day old chicken embryonated eggs. In addition, chicken lethal dose50 (CLD50) test were used to determine the virus titer that could cause 50% death of the chicken population. The CLD50 test was used 25 day-old-chickens (DOC) divided into 5 groups. The virus was diluted from 10-1 to 10-8. The 104 to 10-8 dilution of NDV was infected to every group of chicken via eyedrop and intranasal with 0.1 ml/chicken dosage. Haemagglutination test showed that the allantoic fluid were contain high titers of NDV is 512 HAU. The infective NDV that had been titrated by EID50 test showed the virus titers is 109 EID50/0.1 ml or 1010 EID50/ml and the virus titers of CLD50 test e.i 106.48 CLD50/0.1 ml or 107.48 CLD50/ml. These results can be concluded that the NDV Gene VII field isolates were most appropriate to be used as a standard virus to vaccine test
Keyword: Newcastle Disease Virus Gene VII, HA tes, EID50 test, CLD50 test