Review on sensing the fertility characteristics of agriculture soils

For efficient agriculture production accurate measurement of soil nutrients are needed, including site-specific crop management, where nutrient application rates are adjusted on basis of requirements. Soil fertilityrefers to the ability of the soil to supply essential plant nutrients and soil water in adequate amounts and proportions for plant growth, fitness of seedbed, and impedance to seedling emergence and root penetration by providing nutrients and suitable soil structure and reproduction in the absence of toxic substances which may inhibit plant growth. Soil fertility can be calculated by parameters like Ph level, temperature, Moisture, Percentage of Nitrogen, Phosphorus and Oxygen. With the help of electrochemical sensor we are able to obtain the values of nitrogen, phosphorus, temperature, pH. The farmers should know these primary nutrients. so with the combination all these electrochemical sensor we are making one device who can Measures the all parameter which result to calculate fertility in terms of crops.