A farmer ploughs a field in Wasco in the Central Valley of California that has turned to dust following the four-year-long drought© Global Warming Images /REX
The Central Valley is known as the breadbasket of America and covers a vast area, equivalent to half the size of England, writes Pat Thornton who joined Marr Arable Group’s grower trip to California. It is really two valleys – the San Joaquin to the south and Sacramento to the north. It is about 450 miles long and 60 miles at its widest point and is the world’s largest patch of Class 1 soil (reportedly one mile deep in places). […]