science
Farmers increasingly bury sensors in their fields to decide exactly when and how much to water their crops.
Soil moisture is the most common measurement in precision agriculture, telling farmers how much water is actually present in the root zone rather than relying on guesswork or a fixed schedule. Sensors measure a soil property that changes predictably with water content, and the reading can trigger irrigation only where and when actually needed.
Sky color might hint at coming rain through simple observation, but a buried sensor cannot measure it, and it doesn't reveal how wet the soil already is. Crop market price is an economic figure, unrelated to what a soil sensor detects.
Precision irrigation guided by moisture data can significantly cut water waste compared to fixed-schedule watering, which matters in drought-prone regions expected to produce more food with less available water.
science
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