CHECK POINT Flashcards
PH Refers to
Potential hydrogen
PH refers to _ concentration of soil
Hydrogen ion concentration
PH is a measure of soil _
Acidity
PH scale ranges from
1-14
Soil with a PH of 6 is _ times more acidic than a soil of a PH or 7
10
Neutral pH is
7.0
Acidic soil has a ph lower than
7.0
Soil with pH higher than 7.0 is
Alkaline
Soil acidity determines
Availability of mineral nutrients for your veggies
In alkaline soil _ are limited (3)
Zinc
Iron
Phosphorus
In acidic soil _ are less available to plants (2)
Magnesium
Calcium
Soil pH varies up to _ over a year
Half a point
PH tends to be higher when the soil is
Cool
PH tends to be lower in
Summer
Why warm soil lower pH
Increased bacterial activity
Ideal soil pH range for veggies
6.5-7.0
Green leafy veggies prefer pH
7.0-7.2 (alkaline)
Broccoli,cauliflower, cabbage, kale preferred pH
7.0-7.2
Fall veggies preferred pH
7.0-7.2
Fruiting plants prefer pH range
6.0-6.8
Tomatoes, peppers, eggplants pH preferred range
6.0-6.8
Cucumbers, melons, eggplants preferred pH range
6.0-6.8
Adding organic matter is an indirect method of
PH adjustment
The higher organic matter in soil the more it takes
To change pH
I’m healthy soils with adequate organic matter _ may not be necessary
Changing soil pH
