The New Zealand agricultural company Summit-Quinphos revealed in March that it has a working model of an automated nitrogen-inhibiting sprayer that fits under a cow’s tail, and that it has a government grant to develop the device. A company spokesman said nitrogen from cow urine, concentrated in small patches in a field, currently must be neutralized by expensively treating the entire field. However, the company’s “tail-activated” gizmo immediately fires a blast of inhibiting chemical at the ground directly below every time the cow lifts her tail for a call of nature. Summit-Quinphos scientist Jamie Blennerhasset solemnly swears that the announcement was not an April Fool’s joke.