• Shalini Kumari

Every farmer knows how important it is to maintain optimum moisture levels in their various soils, across different textures, crops, and slopes. Moisture holding capacity drives many crop production factors, including nutrient availability, leaching, runoff, and maintaining a healthy soil environment. Having the ability to maintain soil-water levels in real-time at different depths across the profile enables you to optimize the timing and rate of your irrigation schedule which has far-reaching benefits. Minimizing saturated soils removes many barriers to maximum economic yields, like denitrification and leaching of nutrients, diseases, erosion, and more...Maximize yields-increase your ROI. The working of the soil moisture sensor is pretty straightforward. The fork-shaped probe with two exposed conductors, acts as a variable resistor (just like a potentiometer) whose resistance varies according to the water content in the soil. This resistance is inversely proportional to the soil moisture. As we know that water is a good conductor of electricity and has very low resistance. So, when water is present in the soil then it’s moisture level increases and conduction also increases with decrease in resistance. So, the probes start conducting and according to the amount of conduction, it gives the level of moisture present in the soil. We are constructing system which can ascertain the moisture content of soil and at the same time maintains it without human interference. This in turn benefits our farmers by growing healthy crops. It will be very helpful for our farmers for irrigation in field and it can be used at our homes too for watering purpose.

Sensor, denitrification, ROI

"AUTOMATIC PLANT IRRIGATION SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 3, page no.g183-g186, March-2022, Available :http://www.jetir.org/papers/JETIR2203627.pdf

"AUTOMATIC PLANT IRRIGATION SYSTEM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 3, page no. ppg183-g186, March-2022, Available at : http://www.jetir.org/papers/JETIR2203627.pdf