The Effect of Carica papaya Peels and Mānuka Honey to Create a Sustainable Liquid Fertilizer for Rapid Cycling Brassica rapa

Synthetic fertilizers are recognized for their negative impact on soil health, yet their affordability leads to widespread use, adversely affecting plant vitality. Mānuka honey is well-known for its medicinal properties; however, there are few studies on mānuka honey's impact on plant development. Along with this, Carica papaya is known for its vitamin content, specifically in the peel, which contains essential nutrients for plant growth.This study focused on the synergistic potential of combining mānuka honey and Carica papaya peels to formulate an organic fertilizer that surpasses synthetic alternatives in efficacy. It was hypothesized that a mixture of mānuka honey and Carica papaya peels (mL) would enhance the growth of Brassica rapa (cm) more effectively than standard chemical fertilizers. A total of five groups, including a control, were established, with thirty Brassica rapa seeds planted in each. Carica papaya fertilizers were prepared ahead of time by crushing peels with a mortar and pestle and were refrigerated. Mānuka honey was stirred with water in a separate flask, and a third flask was used to mix mānuka and Carica papaya. Miracle-Gro was the synthetic fertilizer used. The two-way ANOVA revealed that fertilizer was the most important factor impacting Brassica rapa development, with a p-value of <0.001. The one-way ANOVA demonstrated this as well, with a p-value of 0.016. Adding mānuka and Carica papaya peels did not promote Brassica rapa development, resulting in a lower height mean of 0.2400 compared to the highest, the control, which was 0.7400. Consequently, the hypothesis was partially supported.