Tag Archives: wild relatives

Salvaging the salty small holdings

When people interested in food security aren’t busy worrying about plateauing crop yields, they tend to be worrying about how much agricultural land we’re losing. We already use so much of the world for growing food crops (around a third) that there’s very little spare land left, and some of the techniques we use for growing crops lead to the land we already have being lost. When crops are grown in an area with insufficient rainfall they must be irrigated (i.e. watered). But all standing water, even if it doesn’t come from the sea, contains small traces of salts: just look at the label on a bottle of Evian. This means that over time, the land becomes saltier or salinised and since plants don’t like salty soil they struggle to grow there.  Continue reading