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In a nut shell, this project has successfully produced the liquid fertilizer from the agricultural wastes
which are the tea waste and rice straw. The liquid fertilizer produced also shows a positive result as
the macronutrient in fertilizer was identified in the liquid fertilizer using the NPK testing. The
nutrients contain the highest in 70:30 ratio fertilizers. However, to compare with the spinach growth,
it shows the least growth of the plants. It is proven that high level of nutrient does not indicate it is the
best fertilizer because plants need optimum level of nutrients to grow. The fertilizer with ratio 50:50
was determined as the best constituent for planting spinach as this can be clearly seen on the growth
rate of the spinach plants for this ratio which shows a good and healthy result.

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