Click the link to read the article on the InkStain website (John Fleck):
July 5, 2024
Janet Wilson had a super helpful piece this week in the Desert Sun about steps being taken (in a hurry) to get the institutional widgets in place to meet Lower Basin commitments to reduce water use under a deal hashed out in spring 2023 to head of Colorado River NEPA litigation.
I wrote (with youthful enthusiasm) in my book Water is For Fighting Over about the potential of “deficit irrigation” as a water use reduction tool in Imperial and places like it. One of the reasons we have converged on alfalfa as a crop in the arid southwestern United States is how robust it is when the water runs short. From the book:
Do that intentionally, for money, and you have an adaptation tool that avoids fallowing entire fields or “buy and dry”. This also works with Bermuda grass and klein grass, two other forage crops grown in Imperial. Taken together, the three crops accounted for 233,000 of Imperial’s 333,000 acres under active irrigation in June, according to IID’s latest irrigation acreage report. (Total Imperial “farmable” acreage is 436,000 acres, the rest is either being fallowed or between crops right now.)
Deficit irrigation is one of three water conservation tools on the table for Imperial, as discussed in a draft Environmental Assessment released last week. Also on the table are on-farm efficiency improvements and straight up fallowing.
All involve federal money to compensate farmers (and their irrigation district). [ed. emphasis mine]