Palm Oil Managemet Behavior In Using Chemical Fertilizer In Sungai Bahardistrict At Muaro Jambi Regency. Palm oil fruits as a mainstay commodity in Sungai Bahar District which it gives a lot of benefits in that district. However, there were the change of productivity of palm oil fruits such as there was no significant increase in productivity of palm oil fruits because the farmers still used chemical fertilizers, the behavior of the farmers in using chemical fertilizer, and the correlation between the level of farmers knowledge and the behavior of the farmers in using chemical fertilizers in descriptive analysis by using intervals and spearman rank. The result showed that thee farmers had a good behavior with score was 34,04. Besides, the knowledge of farmers in the use of chemical fertilizers was they were lack of knowledge about using chemical fertilizer witch the average score was 26,80. They knowledge were divided into the knowledge of fertilizer content, the effect of fertilizer was categorized as know, the knowledge of the dose of chemical fertilizers was categorized as unknown, the knowledge of the use of fertilizer was categorized know, and there was no correlation between farmers knowledge an the behavior of farmers ikn the use of chemical fertilizer in Marga Mulya Village, Sungai Bahar District in Jambi Province.