Green Area Index Tool
'GAI (Green Area Index), the ratio of leaf green area to the area of ground on which the crop is growing, is a useful tool in canopy management.
Below are a series of reference photographs for you to compare with your crop. For further details on how to use GAI, particularly in the management of forward crops see Topic Sheet 82 - Managing forward crops of oilseed rape.'
GAI 0.2
GAI 0.6
GAI 1.2
GAI 1.8
GAI 2.6
GAI 2.7
See precision farming in practice
HGCA is holding a series of farm visits throughout the summer months to demonstrate how precision farming techniques are being used in practice. The visits are part of the year-long 'Be PRECISE' initiative providing information to growers about the benefits of precision farming.
5 Sep 2008 to 31 Jul 2009
Visit www.hgca.com/events for further details
7 Jul 2009
SCRI, Balruddery Farm, Invergowrie, Dundee, DD2 5LJ
HGCA 'Be PRECISE' Farm Visit - Inverness
7 Jul 2009
Midcoul Farm, Dalcross,; Inverness, Invernessshire. IV2 7JJ.