<![CDATA[This study aims to determine the effect of various biochar materials and doses of chicken manure on soybean growth and yield. The research method used a 2 factorial Randomized Group Design. The first factor is the treatment of various biochar materials consisting of 4 levels, namely: no treatment, corn cob biochar, jengkol skin biochar, rice husk biochar. Factor II is chicken manure consisting of 0 ton/ha, 5 ton/ha, 10 ton/ha and 15 ton/ha. The results showed that the provision of biochar on the growth and yield of soybean plants had a significant effect on the parameters of stem diameter, number of pods, dry weight of seeds/plant, dry weight of 100 seeds. The provision of jengkol skin biochar gave the highest effect on stem diameter (1.750 cm), number of pods (181.60 pods), dry weight of seeds/plant (45.64 gr), weight of seed/m2 (442,98 g). The application of chicken manure on the growth and yield of soybean plants gives a significant effect on stem diameter, number of pods, dry weight of seeds/plant, dry weight of 100 seeds. The dose of chicken manure 15 tons/ha showed the highest effect on stem diameter, number of pods, dry weight of seeds/plant, dry weight of 100 seeds. The interaction of biochar and chicken manure fertilizer did not give a significant effect on all treatments.]]>
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