Today’s Erosion and Sediment Control Tip: #4

 

We often discuss the importance of vegetation to control erosion.  In order to establish permanent vegetation and ensure that it is long-lived, the root zone in the soil must be "right".  That is, the pH must be within an acceptable range and the plant community must have access to the plant nutrients needed for a particular species to thrive.

So, what if your soil test calls for Ag. Lime and plant nutrients (NPK Fertilizer)?  How do you ensure these soil amendments are incorporated the best way for the roots?

Whenever possible (generally slopes 3:1 or flatter), lime and fertilizer should each be applied in split applications crossing each other to ensure uniformity.  Once applied, the soil amendments should be incorporated (heavy discing or roto-tilling) to the depth needed to create an adequate zone for root development (generally 6-8 inches).  Incorporation of lime increases pH at a much faster rate in the root zone than surface-spread lime with no incorporation because surface applied lime slowly moves down into the soil (I've been told only ¼ inch per year).

So, whenever possible incorporate your lime and fertilizer, and the vegetation will thank you by being there for years.


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