On Friday my last visit in the US was to Texas Tech University in Lubbock. One of the highlights of the whole trip actually. Basically in a nutshell - Texas uses a huge amount of bore water to produce cotton, corn and sorghum. The corn and sorghum help feed around 40% of the US cattle feedlots which are located here. Thats a lot of cows.
The university are conducting research as to how they can reduce water use yet maintain production. They are comparing a typical system of continuous cotton v's a pasture, sorghum, lucerne rotation all done under sub-surface irrigation. See the lines in the pasture from the drip lines.
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