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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.commy soil has tested at 4.2 for ph. I was advised that it would require 180 lbs per 1000 sq. ft.. How often can I apply lime to help boost the ph level?
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1 Comment To "ph level of soil"
#1 Comment By MichiganDot On 08/16/2018 @ 8:02 pm
There is no risk of burning plant roots when liming; however, it is most effective if worked into the top 7 inches of soil where most of the plant roots are. Lime is slow to act and will take up to a year for full effect. If dug in this fall, there will be a substantial difference by spring. Get a soil test a year after application. I suggest you submit samples to your state’s extension service. Results include recommendations to correct pH and nutrient problems specific to the plants you will be growing. https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/adding-lime-to-soil.htm [1]
Clay soils need significantly more lime to affect pH than sandy soils. I hope the recommendation you were given takes this into consideration. 180 pounds sounds like a lot but I don’t know what pH you are aiming for.