China has revealed plans to increase grain output in 2013 by using 276.6mn acres of additional land for farming in the year

Bhutan has revealed plans to produce crops in a completely organic way by banning pesticides and insecticides and using only animal and farm waste as fertiliser

Rice shipments from Thailand are expected to increase 15 per cent in 2013, making the country the top rice exporter in the world

The Philippines agriculture department has revealed plans to set up two germplasm laboratories by 2015 in an attempt to preserve and develop corn varieties

Weeds are simply green plants in the wrong place at the wrong time growing under and around trees competing with root systems for water and nutrients