Comparative Study of the Chemical Contents in locally used Organic and Inorganic Fertilizers

Abstract

This study aimed to compare the chemical content of organic and locally used inorganic fertilizers. Three types of organic fertilizers (sheep, chicken, and pigeon manure) and three inorganic fertilizers (Sulostate, Compound, and Monoammonium phosphate) were selected for analysis. The laboratory analysis revealed that the moisture percentage in sheep manure (sample A) was 20%, similar to that of commercial fertilizers. On the other hand, both chicken and pigeon manure had a moisture percentage of only 4%. The ash percentage was highest in sample F at 92%, and lowest in sample E at 10%, while the values were similar in the organic fertilizers. In terms of protein content, the range in organic fertilizers was between 12.75% and 15.98%, while in commercial fertilizers, the highest protein content was found in the compound fertilizer (sample E) at 31.14%. The chemical content analysis was performed using XRF. However, highest percentage of phosphate was found in sample F at 65.2%, and the lowest in sample A at 2.89%. As for potassium, the highest percentage was 60.7% in sample E, and the lowest was 1.54% in sample F. The organic fertilizers contained higher percentages of calcium (34.1%), with the highest percentage found in sheep manure (sample A). They also contained silicon, aluminum, iron, and other elements such as iodine, titanium, and trillium. Additionally, they contained substantial amounts of sulfur and copper, making them a suitable alternative for plant nutrition and soil improvement.