Drip irrigation is tremendously beneficial if you use it wisely. It is therefore quite essential to know the situation when to irrigate your plants and how much watering is necessary. For this, you need to observe the moisture level in the soil and the type of the soil. If it is loam or normal soil and the moisture is appropriate, you can keep control on your water supply. Suppose it is clay or hard soil and the moisture level is minimal, then you require increased level of watering to keep your plants nourished.