Agriculture
fromModern Farmer
23 hours agoHow to Kill Winter Crops Without Losing Soil Gains
Proper timing and method for terminating cover crops are crucial for maximizing soil biomass and ensuring successful subsequent crop growth.
"In the Gulf, desalination is built with enough breathing room that losing one plant doesn't immediately show up at the tap," says Rabee Rustum, professor of water and environmental engineering at Heriot-Watt University Dubai.
The powerful March storms that drenched Hawaii produced more than 2 trillion gallons of rain and pushed precipitation levels to as much as 3,000% above normal in a 14-day period for this time of year.
Data from the US Department of Agriculture's Natural Resources Conservation Service shows that out of approximately 70 river basins across the Western US, only five are at or above the 1991-2020 median snow water equivalent for this time of year.
In many Texas households, outdoor watering accounts for more than half of the total summer water use. The biggest mistake people make is watering in the middle of the afternoon. When the sun is at its peak, a significant percentage of that water evaporates before it ever hits the roots of your St. Augustine or Bermuda grass.
The Colorado River is an interconnected system, sustained by Rocky Mountain snowpack, rainfall and groundwater. It is fragile, and under increasing stress. Two and a half decades into this century, the river that built the modern West has 20% less water flowing through it than it did on average in the last century. As heat and drought intensify, so do the stakes: Failure to recognize the severity of changing conditions, managing the river in parts without considering needs of the whole and inadequate planning for long-term shortages put the future of all the basin at risk.
The largest share, $235 million, will be used to rehabilitate the Delta-Mendota Canal, which carries water to farmlands. An additional $200 million will help continue repairs on the Friant-Kern Canal, another key conduit for water in the valley. Sinking ground, an effect of heavy groundwater pumping, has damaged segments of the Friant-Kern Canal and reduced its capacity.
In 2009, Wall Street had just imploded, and the Mojave Desert town of Victorville, California-sunblasted, shoddily constructed, and abruptly abandoned-was one of the housing bubble's most spectacular wipeouts. But amid the boarded-up McMansions and tumbleweed-traversed deserted culs-de-sac, the journalist Yasha Levine stumbled upon an entirely different story. Seeking water, a drought-stricken Victorville bulk-purchased enough to supply as many as 30,000 families for a year. The arrangement gave Levine pause: Since when did a public resource like water come with a deed? That question unspooled into the reporting behind his new documentary, Pistachio Wars.
Over time, the water evaporated to form the smaller, brinier Owens Lake. Indigenous Paiute people call the Owens Valley Payahuunadü, 'the land of the flowing water'. Today, Owens Lake is a 'Dusty Vestige of the Old West', as NASA described a photograph of the lake taken from space.
The surge of water, more than 22,400 gallons a second, plunged from the foot of Warm Springs Dam, launching a fine mist above. That was the spectacle of abundance last week at Lake Sonoma, the North Bay's largest reservoir, where the U.S. Army Corps was releasing what dam managers call an "oversupply" - the welcome product of heavy runoff from recent storms.
The proposed 1.5 million acre-foot Sites Reservoir would store water from the Sacramento River and distribute it during droughts to several parts of California, including the Sacramento and San Joaquin valleys, Southern California and the Bay Area. Stretching about 4 miles across and 13 miles north to south, it's meant to provide water to approximately 24 million people, and it would mark California's first major reservoir project since 1979, when New Melones Lake was completed.
The question of how to protect fish and the ecological health of rivers that feed California's largest estuary is generating heated debate in a series of hearings in Sacramento, as state officials try to gain support for a plan that has been years in the making. "I am passionate that this is the pathway to recover fish," said state Natural Resources Secretary Wade Crowfoot. "This is the paradigm we need: collaborative, adaptive management versus conflict and litigation."