Automatic Soil Testing System

Soil is a vital, living component of the environment–a component that can be manipulated to affect crop performance. Soil contains vital nutrients, NPK (Nitrogen, Phosphorous and Potassium) contents and pH which are necessary for successful growth of plants. But this testing is very painful process for the farmers because, farmer need to bring that soil to testing lab and testing takes more than 4-5 days to complete process. And cost of soil testing is also high so poor farmers can’t afford it so they avoid to soil testing. The main aim of this proof of concept model is to construct a soil nutrient testing kit using Arduino UNO board and sensor module. This project gives the details regarding the amount of macro-nutrients and micro-nutrients present in the given sample of soil. The pH value and electrical conductivity of the soil are also measured. From the electrical conductivity we are estimating the salinity of soil and water drainage in the field. All this information regarding the soil which help to determine the which type of crop that can grown more effectively in same soil.