INVESTIGATING THE SYNERGISTIC BENEFITS OF CHICKEN EGGSHELLS AND SPENT COFFEE GROUNDS AS AN EFFECTIVE FERTILIZER FOR BRASSICA RAPA (PECHAY)

Abstract

Sustainable agriculture is increasingly critical in the face of global environmental challenges and a growing population.  Additionally, there is a growing emphasis on utilizing organic waste materials as viable alternatives to synthetic fertilizers. This study explores the beneficial relationship between combined chicken eggshells and spent coffee grounds as a natural fertilizer for Brassica Rapa (Pechay), aiming to assess their synergistic effects on plant growth and nutrient uptake. The study used quantitative research as the method, experimental for research design. The sample that the researchers used to determine the effectiveness and liability of the results is controlled and experimental group. The control group received commercial fertilizer, while the experimental group was treated with a fertilizer made from combined chicken eggshells and spent coffee grounds. Growth rate measurements and T-test statistical analysis were used to compare the effectiveness of the different fertilization methods. Through the findings of the study revealed that there is no significant difference on the level of effectiveness between the combined chicken eggshells and spent coffee grounds fertilizer, and commercial fertilizer on the growth rate of Brassica rapa (Pechay). The t-statistical values were 1.199 for height and -0.519 for width, compared to t-critical values of 2.200 for height and 2.199 for width. The null hypothesis was accepted, proving that the combination of chicken eggshells and spent coffee grounds fertilizer could serve as an alternative fertilizer. It demonstrates potential benefits and effectiveness as an organic fertilizer for Pechay plants.