Agriculture

Smell, sight and smoke: Start-ups show the way
Three ventures on ways to help farmers and companies and extract fragrant oil.
The 'miracle crop' at the high table
Scientists in India and elsewhere are looking at the many benefits of cultivating hemp.
Looking ahead - and above
Start-ups root for farmers, patients and safe space.
The pulse of a farm revolution
For years, Rajeev Varshney has been using genome-assisted breeding techniques to create hardy crops.