Smart farming takes off in the West

SciDev.Net: Farmers from as far afield as Africa and China have flocked to see how a US farmer is harnessing precision farming techniques to boost crops yields and cut costs. Precision farming enables farmers to use satellite positioning in smart new ways. Clay Mitchell, based in Iowa, uses an autopiloted tractor with satellite navigation (satnav) to spray his crops. The technique is supported by 'real-time kinematics' (RTK), which takes a basic car satnav system and improves its accuracy from three metres......

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