By Jamie Martin
Water scarcity is becoming a major concern for agriculture, especially in dry regions. Farmers must carefully manage how much water their crops receive to avoid stress, wasted resources, and rising costs. New precision agriculture tools are now making irrigation more accurate and efficient.
A modern robotic system has been developed to map soil moisture levels for individual trees in orchards. Traditional soil moisture sensors are costly and are usually installed in only a few spots. As a result, farmers often rely on estimates rather than complete field information.
"The information those sensors provide is very limited," said Elia Scudiero, associate professor of precision agriculture and the Director of UCR's Center for Agriculture, Food, and the Environment (CAFE). "It really only tells you what's happening in the immediate areas where they're placed."
The robotic system moves through orchards measuring soil electrical conductivity. This property changes depending on moisture, salt levels, and soil texture. By combining conductivity data with readings from fixed sensors, researchers generate detailed moisture maps for entire fields.
Different soil types cause water to spread unevenly. Sandy soils drain quickly, while finer soils retain moisture longer. These differences mean that even neighboring trees can experience very different watering conditions. The new system helps farmers identify these variations clearly.
With accurate moisture maps, farmers can irrigate only the areas that need water. This prevents overwatering, protects root health, and improves crop growth. It also reduces the risk of fertilizers washing into groundwater.
As water regulations tighten and costs rise, efficient irrigation is no longer optional. Precision tools like robotic soil mapping help farmers continue producing crops while using fewer resources.
This technology highlights how innovation in agriculture can support sustainability, protect water supplies, and ensure long-term food production.
Photo Credit: gettyimages-mvburling
Categories: National