What happens when farmers stop watering the surface and start feeding the roots directly? In northern Espírito Santo, that shift is already changing the math for coffee and sugarcane growers.
Local reports from Jaguaré and Linhares say subsurface drip irrigation has lifted yields sharply, cut waste, and lowered some operating costs in fields that once depended on more traditional watering methods.
Why buried irrigation can save water and improve efficiency
The system is fairly simple on paper. Hoses are buried below the soil so water and fertilizer reach the root zone with more precision. In practical terms, that means less evaporation, less runoff, and fewer weeds competing for nutrients.
That matters in tropical farming, where heat can dry out the ground fast and every extra pass across the field adds labor, fuel, and pressure on already stretched water supplies.
Research on subsurface drip irrigation has consistently linked the method to better water use efficiency and stronger crop performance, especially when nutrients are delivered directly to the soil profile through fertigation.
Coffee and sugarcane producers are seeing higher yields
The business case is getting harder to ignore. In Jaguaré, producer Ataydes Armani reportedly installed the system on 23 hectares of conilon coffee, with hoses buried about 15 centimeters deep. He says labor costs fell in areas such as weeding and harvesting, and he is now planning to expand.
In Linhares, a sugarcane operation that adopted the technology in 2023 on 250 hectares reportedly raised average productivity from 40 tons per hectare to 120 tons per hectare, with expectations of reaching 140 tons per hectare this year.
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The environmental case for precision irrigation
That is the environmental angle, too. For the most part, better irrigation is not just about growing more. It is about wasting less.
Studies in Brazil have found that subsurface drip systems can increase sugarcane productivity while reducing parts of the crop’s water footprint, which is increasingly important as agriculture faces tighter climate and water constraints and rising energy costs that can show up in something as ordinary as the electric bill.
Why this irrigation technology matters for agribusiness
So this is more than a farm upgrade. It looks a lot like a test case for how technology, agribusiness, and irrigation tech can move in the same direction. Quietly. Underground.
The study was published on Journal of Cleaner Production.
