| dc.description.abstract | The use of superior varieties and proper fertilization is essential for
enhancing plant growth. This study aimed to determine the effect of sugarcane
bagasse compost application on the growth and yield of several soybean
(Glycine max L.) varieties. The research was conducted at Pasar 1 Tanjung Sari,
Medan Selayang District, Medan, North Sumatra (3°33'31.608"N,
98°37'24.3588"E) at an altitude of ± 25 meters above sea level from July to
September 2024. A Factorial Randomized Block Design (RCBD) was used,
consisting of two factors with three replications. The first factor was three
soybean varieties: Dering 1, Dering 2, and Dering 3. The second factor was the
dosage of sugarcane bagasse compost at four levels: 0 tons/ha, 15 tons/ha, 30
tons/ha, and 45 tons/ha. The Dering 1 variety significantly produced the highest
plant height, flowering time, root dry weight, number of productive branches,
harvest time, and number of pods per plant. The Dering 2 variety had the highest
seed weight per plant and 100 seed weight, while the Dering 3 variety showed no
significant effect on all observed parameters. The 45 tons/ha compost dosage
significantly increased plant height, root dry weight, seed weight per plant, and
seed weight per plot. The 30 tons/ha compost dosage significantly affected
flowering time and the number of pods per plant, while the 15 tons/ha dosage
significantly increased the number of productive branches and 100 seed weight.
The interaction between the three soybean varieties and compost dosage had a
significant effect on plant height at 7 weeks after planting, the number of
productive branches, and 100-seed weight. | en_US |
