Asked November 16, 2024, 11:38 AM EST
Greetings:
I'm writing for guidance on my fruit trees and on our blueberries:
Fruit Trees:
Please see S24-01389, attached.
I have seven (remaining) fruit trees in my back field, from an original planting of 14 trees in 2012. They are on somewhat higher ground in a characteristically wet field. I think the mortality has been mostly from too wet Soils, and certainly in part from neglect! This is the first time I have tested the Soils, and no surprise, they are acid and low in nutrients. I plan to add three more trees to this orchard.
I have a scheme to surface apply dolomitic limestone beneath the seven trees and in the three areas where I will add new trees. These are dwarf trees, so I'm considering only applying the lime to a 10-foot radius at each of the 10 locations (3200 sf). At an application rate of 400lb/1000sf, my calcs indicate that I will need about 3,200 pounds of dolomitic limestone in total. Please let me know if this makes sense. The P, K and Mg levels are low to very low. Should I amend the soils for these chemicals or wait to see if the increased pH will take care of things?
If my approach is right, I'll need 26 - 50lb bags of lime. I could borrow a trailer and pick this up in bulk, which I would think would be cheaper. If you know of a source, I'd appreciate guidance.
Blueberries:
Please see S24-01388.
Note that the sulfur level is high. My wife has applied sulfur to these 10 bushes in the past. I've also added sawdust a few times. I need to lower the pH, and my big question is how to do that without adding more sulfur. The soils appear to be low in K and high in P. I'm not sure whether I should add amendments for potassium. This area is well away from streams and surrounded with grass, so the high P should not migrate to surface waters.
Many thanks for your assistance!,
Dean Grover
Chittenden County Vermont