Cash-strapped farmers in New South Wales (NSW) have welcomed  a ruling that they may legally cultivate hemp, a variety of the cannabis plant that can be used in food products, clothes and even plastic. Farmers have got until 27 April to apply for a licence to grow the plant in a trial that will begin this spring, revealed a NSW agriculture spokesman. The resilient crop will grow in many conditions, requires little water and few chemicals, and unusually returns nutrients to the ground as it grows.