I had never listen about such a device. NPK and fertilizers are very useful plant food for all plant. They increase the productivity of plant and soil. But some act as toxic for plant. In such case knoe details the composition of fertilizer is very important. It is quite difficult to know the composition. After reading this blog I think it is now becone easy by using the above instrument. It is good news for our farming sector as well as fertilizer production industries.organic plant fertilizer
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.