In this study, there are several things that can describe the socio-economic conditions of farmers having differences in income, education, and health levels, among others: 1. The highest level of income is in Siosar Suka Meriah Village, because they receive government assistance in the form of land, funds , subsidized fertilizers, and seeds, while in Kuta Tengah Village Shelter the income is lower because the government only provides temporary shelter. The lack of capital also caused the lack of income and land to not allow farming because it was located on the slopes of Mount Sinabung. 2. The education level in Siosar Suka Meriah Village is lower, because after moving to relocation the distance to school is too far and some children do not want to continue their education. Whereas in Kuta Tengah Village Shelter their education is higher, because the distance to school is not too far away and most children also have the desire to go to school. 3. The health level in Siosar Suka Meriah Village and the level of health in the Kuta Tengah Village Shelter together use BPJS / KIS which is programmed by the government for the Mount Sinabung eruption refugee community.

Andung sari 1 coffee seeds made in Suka Mbayak Village have a large fruit production, but not too high, do not have many wild shoots, are resistant to pests and stems so that farmers are more interested in planting Arabica coffee seeds (Coffea arabica) Andung sari varieties 1. The research method in the research area was determined purposively or deliberately based on the primary data of 20 families of Andung sari 1 arabica coffee farmers, with the characteristics of the respondents described by gender, education, age and occupation. Based on the results of respondents in the field according to gender, the male andung sari coffee farmers were the most respondents (90.1%). Based on the latest education, the most respondents were junior high school and high school students (38.8%). According to respondents, the most age groups were respondents aged 31 - 40 years (65.6%) and while based on job respondents the most respondents were coffee farmers (60.5%). Based on the results of the above research, it can be concluded that cultural, social, personal and psychological factors simultaneously have a positive and significant effect on the decision to purchase Arabica coffee seedlings of Andung Sari 1 variety, this can be seen in the value of F count> F table (18,144> 2,494 ) and the significant value is smaller than the significant level 0.05 (0.000 <0.05), then the fifth hypothesis is accepted, meaning that it simultaneously has a positive influence on the decision to purchase Andung Sari 1 coffee seedlings.

The aim of study is to 1) determine the productivity of oil palm in the study area, 2) determine the income of oil palm farming in the study area and 3) determine the relationship of the cost of oil palm production with the income of oil palm farmers in the study area. This research was conducted in Pulo Bayu village, Hutabayu Raja district, Simalungun regency. The population in this study were farmers who worked on oil palm plants in Pulo Bayu village with a field area ranging from 0.5-10 Ha and the age of the plants between 3.5-18 years. The number of samples in this study were 30 oil palm farmers. Data analysis was performed descriptively and using simple linear regression analysis. The result showed that the productivity of oil palm plants in the study area was classified as low. The production of oil palm farming in the study area is 82,342.80 kg/year or 1,744.76 kg/ ha (1.75 tons/ha/month). This is lower than the average CPO productivity of smallholder estates 2.5 tons/ ha/month. Net income of oil palm farmer in the study area is Rp 1,308,973.06/ha/month is classified as low because it is lower than the UMR of Simalungun regency (Rp 2,224,036.00/ month). Farming production costs significantly have a positive linear effect on the income of oil palm farmers in the study area.

Andaliman (Zanthoxylum acanthopodium DC.) is one of exotic plants in Indonesia because its has a unique smell and taste and it grows on a spesific place like dairi regency, north tapanuli, south tapanuli, simalungun and karo regency. This study aim to determine soaking time of andaliman with kalsium klorida concentration 45%. Soaking time consist of 4 type : L1 = 10 Menit, L2 = 20 Menit, L3 = 30 Menit dan L4 = 40 Menit.