PH #2 Flashcards
When you increase soil organic matter you are
Increasing plants tolerance for acidic or alkaline conditions
Weeds are weaker in
Acidic soils
Soil pH can be lowered by half a point (7.0-6.5) by
Increasing soil nitrogen
Manure can help
Decrease soil pH over time
Alfalfa meal helps
Lower soil Ph
Lower pH in large amounts (more than half a point) with
Elemental sulfur
Other word for elemental sulfur
Flowers of sulfur
How elemental sulfur lowers pH
Bacteria oxidizes sulfur and releases dilute sulfuric acid into soil
When using elemental sulfur
Mix in well so it doesn’t accumulate just in certain spots
Sulfur only works in
Summer
Why sulfur only works in summer
Warm soil, high bacterial activity
Elemental sulfur can take (range) (2) to affect soil
Several weeks, several months
When using elemental sulfur use _ applications over entire season (range)
2-3
Fall or cool season veggies pH preference (range)
6.8-7.5
Make soil more alkaline using
Dolomite Lime