Interfacing Soil Moisture Sensor with Arduino

Where should soil moisture sensors be placed?

Sensors should be placed at several different depths and locations in the field. Typically, sensors are placed in pairs at one-third and two-thirds the depth of the crop root zone and at two or more locations in the field, preferably away from high points, depressions and slopes.

How much area can a soil moisture sensor cover?

It depends on the sensor. A satellite-based passive microwave sensor will cover a very wide area of ground, while cheap Chinese hobby sensors can cover only 20-30 cm of land.

Why should soil moisture be continuously monitored?

Soil moisture monitoring can help growers efficiently use and apply water and nutrients. All soil moisture instruments provide data that help a grower make good decisions about how much water to apply and when to apply it.

Which soil moisture sensor is best? What are the other options?

The soil moisture sensor discussed here is mostly used for hobby applications. If you are looking for a professional application, the top five best soil moisture sensors are given below:

> Sonkir MS02 Soil pH Meter – Best Overall. ...
> VIVOSUN 3-in-1 Plant Moisture Meter – Best Value. ...
> Gain Express Soil pH & Moisture Meter – Premium Choice. ...
> XLUX T10 Soil Moisture Sensor Meter
> Generic Soil Moisture Sensor