Hello bdnow,
Gil et al,
An interesting outcome of the soil and petiole analysis is that
Phosphorus under the compost is higher than under straw or herbicide
treatments? May be due to pH changes under compost making P more
available rather than a contribution of P from the compost.
I had the compost analysed by SFI and Elaine reckoned that it would
contribute 50 lbs per acre of N from soil biota activity (~50KG/ha)
and this is certainly showing up in the petiole analysis and to a
lesser extent in the soil analysis.
0.01% OM? Are you farming on the beach?
I am tempted to try rock dust to boost soil P , but as I make the wine
from the fruit from this vineyard and have been happy with the quality
I am wary of changing too much just for the joy of experimenting.
This trial and 10 years observation have convinced me that
herbicides, my last chemical dependence, can be safely removed from my
shopping list from now on!
--
Best regards,
John mailto:[EMAIL PROTECTED]
