유기질 비료와 식물 생장촉진 미생물의 혼합 비율별 상추의 생육에 미치는 영향

초록

This study aimed to develop organic fertilizers that are more effective than existing ones via mixing plant growth-promoting microorganisms with them. The TB B1-B5 (Bacillus licheniformis) strain was isolated from the livestock composting process. Lettuce seed germination experiments and lettuce growth promotion tests were conducted with other plant growth-promoting microorganisms. The TB B1-B5 strain showed a superior germination promotion effect compared to other growth-promoting microorganisms and promoted lettuce growth in pot experiments. To mix organic fertilizers and the selected TB B1-B5 strains, experiments were conducted for each ratio of lettuce and organic fertilizers. Growth was excellent in the treatment with 1% organic fertilizers. In addition, the mixing ratio of 1% organic fertilizers and 5% TB B1-B5 strains promoted lettuce growth. Based on the results of this experiment, the optimal ratio of organic fertilizer and TB B1-B5 strains was confirmed; adding a mixture of 1% organic fertilizers and 5% TB B1-B5 strains was found to be more effective on plant growth than the input. The results of this study suggest the possibility of developing organic fertilizers that are superior to existing organic fertilizers and are believed to be an indicator for sustainable and eco-friendly agriculture practices in the future.

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