The use of fertilizers in agriculture has been a hotly debated subject, as the excess nitrogen and phosphate that isn't absorbed by the crops typically makes its way into the groundwater.
The Environmental Protection Agency has said that this type of nutrient pollution is quickly becoming the U.S.'s largest concern regarding water quality; it is currently the largest contributor to the Gulf of Mexico's "dead zone," a hypoxic area of water stretching about 5,800 square miles.
Financial Strain
The use of fertilizer also presents an economic challenge as it costs farmers around $16 billion per year and makes up around 35 percent of the $4.8 billion that water treatment plants spend annually removing nitrate from the nation's drinking water.
Smart Soil
The company has developed crop sensors, which contain Nutrient Complexity Reservoirs (NCRs) designed to deliver the nutrients plants need when they need them.
How Does It Work?
ASI has worked together with a wastewater treatment plant to collect biosolids, which were then processed into granules and charged to retain specific macronutrients needed for particular crops.
Those granules are then placed into the surrounding soil and designed to release those nutrients as they are required. The process reduces run off and keeps farmers from over fertilizing their crops.
Big Benefits
If successful, ASI estimated that it may save farmers up to $8 billion per year in fertilizer expenditure and increase farms' crop yields by up to 25 percent.
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