Abstract
The demand for soybeans in Rokan Hulu is on the rise due to the increasing population and the expanding array of soy-based products. However, the local farmers are unable to meet this growing demand as a result of diminishing arable land for soybean cultivation and declining soil fertility levels. Therefore, concerted efforts are required to boost soybean production in the region. It is believed that applying solid palm oil could potentially enhance soybean yields. A study was conducted to investigate the impact of various doses of solid palm oil on the growth of soybean plants. The study's findings analyzed using Duncan's multiple range test (DMRT α 5%), revealed that the application of solid compost did not significantly affect plant height, stem diameter, flower age, or the number of fruiting pods. However, a significant difference was observed in the number and weight of seeds per sample plant, with the optimal dose being 360 g per plot.
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