PACE Pesticide dose adjustment for orchards

4. Adjust dose for tree density

• The function of the growth-stage drop-down has been improved so that it now changes all orchard data in one click when a new growth-stage is selected. Previously it was necessary to change the growth-stage of each selected orchard.
• The growth-rate is an experimental parameter that has been introduced to enable different orchard growth patterns to be predicted from the limited number of branch-number options. Previously, a mean growth-rate pattern was assumed. Now different growth-rate patterns can be selected from the drop-down menu (fastest, fast, mean, slow).
• The branch-number drop-down gives a range of selectable values (i.e. max, std, mid, low).
• The table below shows the branch-number pictogram for the "mean" growth-rate pattern.

	pre-blossom	full-leaf
std
std/mid
mid
mid/low
low

• The table below shows examples of density settings (i.e. % light interception averages below maximum height and equivalent sigma values) for the various combinations of growth-stage, growth-rate and branch-number.

% light	growth	growth	branch
interception	stage	rate	number
(sigma)
67%(1.7)	pre-blossom	mean	high
55%(1.4)	pre-blossom	mean	std
33%(1.2)	pre-blossom	mean	mid
18%(1.1)	pre-blossom	mean	low
99%(4.3)	full-leaf	max	high
95%(3.2)	full-leaf	max	std
83%(2.1)	full-leaf	max	mid
59%(1.5)	full-leaf	max	low
97%(3.5)	full-leaf	fast	high
92%(2.7)	full-leaf	fast	std
73%(1.8)	full-leaf	fast	mid
55%(1.4)	full-leaf	fast	low
92%(2.7)	full-leaf	mean	high
83%(2.1)	full-leaf	mean	std
63%(1.6)	full-leaf	mean	mid
39%(1.3)	full-leaf	mean	low
82%(2.1)	full-leaf	slow	high
70%(1.7)	full-leaf	slow	std
55%(1.4)	full-leaf	slow	mid
33%(1.2)	full-leaf	slow	low