Last irrigation and defoliation date

15 February, 2018

The prime objective of the last irrigation is to ensure that boll maturity is completed. Crops that come under stress prior to defoliation (60% bolls open or 4 (boll carrying) Nodes Above (last) Cracked Boll) (NACB), can suffer some fibre quality reduction, especially micronaire.

There are several methods available to accurately time final irrigation and defoliation, which are outlined in this Facts on Friday.


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