Pesticides are substances that kill insects, weeds, fungi, bacteria, and other organisms harmful to humans or agricultural products. There are many different types of pesticides, including herbicides, fungicides, insecticides, miticides, nematicides, and rodenticides.Soil testing refers to the analysis of soil samples to determine the levels of various elements present in the soil. Soil testing is

performed to identify any potential environmental problems, such as heavy metal contamination, and to help farmers make informed decisions about fertilizer use.Mobile apps are programs designed specifically for mobile phones. They allow users to interact with their phone's hardware capabilities. Mobile apps can be used to monitor weather conditions, track crops, and control irrigation systems. smart farming in India