A: Probably not, though itâs hard to know for sure. Hexane is a volatile solvent thatâs used, with Food and Drug Administration (FDA) approval, to extract oil from soybeans (as well as from nuts and olives).
Agriculture uses about 80 percent of Californiaâs. developed water supply. As such a large. user, it is heavily impacted by the availability. and reliability of Californiaâs water resources. Agriculture can also play an important role in. helping the state achieve a more sustainable. water future.
Drainage water from agricultural land also contains phosphorus and nitrogen. It usually has much more nitrogen because phosphorus is usually bound to soil components. Extensive use of fertilizers results in significant concentrations of nutrients particularly nitrogen, in agricultural runoff.rainage water from agricultural land also contains phosphorus and nitrogen. It usually has much more nitrogen because phosphorus is usually bound to soil components. Extensive use of fertilizers results in significant concentrations of nutrients particularly nitrogen, in agricultural runoff.