Design and application of portable and electric system of soil sampling and positioning

The soil nutrient survey is an important part of variable rate fertilization to carry out precision agriculture. The soil sampling system can improve the sampling efficiency, reduce labor intensity and shorten the time of field operations, which is composed of a portable machine, GPS positioning equipment and battery-powered motor which can be used for power instead of manpower. Every soil sample has unique information of latitude and longitude which can match to soil sampling ID one by one. The soil samples can be traced back to find corresponding points in the field. It has been proven to be markedly improved the accuracy and efficiency of sampling in the experiment. The system can solve the problem of inefficiency and labor-intensive in the process of soil sampling because all the work rely on manual labor.