Effect of Biofertilizer from Food Waste on Growth of Sunflower Sprouts
Abstract
This work integrating the research and academic service contributed to the community around Thammasat University (Rangsit campus). The research aimed to study the properties of organic fertilizer made from the food waste of Canon (Thailand) Co., Ltd by anaerobic biological reactor owned by Prasart Thong Municipality, Ayutthaya Province, and also its benefits on plant growth. The results showed that the properties of organic fertilizer made from the food waste met the standards specified by Department of Agriculture with the moisture content of 5.5-6.4%, pH of 6.33-6.58, Electrical Conductivity (EC) of 1.89-2.02 mS/m, and Soil Organic Matter (SOM) of 31.65-45.12%. In addition, the amount of essential soil nutrients including Total Nitrogen (TN), Available Phosphorus (Avail.P), and Available Potassium (Avail.K) were 2.5-2.57%, 0.07-0.36% and 0.27-1.66% respectively. In terms of the effectiveness of fertilizer made from the food waste on improving the soil fertility, it was found that the 1:1 ratio of the soil to the organic fertilizer by weight was the optimum ratio with the proper amount of essential plant nutrients and the most suitable fertilizer application when compared to the others ratio. Moreover, the study also compared the uses of the soil only, the soil with chemical fertilizer, and the soil with organic fertilizer from the food waste to grow sunflower sprouts. Considering the germination numbers and percentage of plants, plant height, numbers of leaves, length and width of leaves, chlorophyll content in leaves and nitrogen content in plants, the results revealed that the organic fertilizer made from the food waste mixed with the soil from the studied area at the ratio of 1:1 by weight could greatly enhance the growth of the sunflower sprouts due to the nutrients needed for plant growth were adequately supplied. Furthermore, the richness of potassium in the organic fertilizer makes it suitable for cultivating the fast-growing plants with a short harvest time such as sunflower sprouts.
Keywords : biofertilizer ; food waste ; sunflower sprouts
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