Automated Soil Macro-Nutrient Analyzer Using Embedded Systems

Nutrient is a substance which provides essential nourishment for the growth of plant. Nutrients are classified as Micronutrients & Macronutrients. Nutrients those are needed in small amount are known Micronutrient while those are needed in large amount for growth of plant is known as Macronutrients. NPK are Primary Macronutrients. In this Paper, Soil Macro-Nutrient analyzer is designed which measures amount of NPK available in soil sample using color sensor, also soil pH using pH Sensor. Microcontroller controls the operation and displays the contents. This method will reduce human efforts, time and reduces errors in measurement.