CEC and Nutrient Requirements

lubadub · September 28, 2019

If a person's CEC (cation exchange content) per soil test were 10 to 15, thus giving their soil the ability to hold lots of nutrients, does this remove the need to add nutrients to the soil during the growing season? Does a high CEC allow you to put enough plant nutrients in your garden soil in the spring such that it will meet the needs of the plants without having to add anything additional during the growing season? How many of you believe you can put everything in in the spring and how many of you fertilize throughout the growing season to make up for what the plants use and what is leached out by rain and watering? I have been adding additional potassium throughout the season and am now thinking I may need to add some magnesium as well.

September 28, 2019	#1
lubadub Tomatovillian™ Join Date: Feb 2006 Location: PA Posts: 169	CEC and Nutrient Requirements If a person's CEC (cation exchange content) per soil test were 10 to 15, thus giving their soil the ability to hold lots of nutrients, does this remove the need to add nutrients to the soil during the growing season? Does a high CEC allow you to put enough plant nutrients in your garden soil in the spring such that it will meet the needs of the plants without having to add anything additional during the growing season? How many of you believe you can put everything in in the spring and how many of you fertilize throughout the growing season to make up for what the plants use and what is leached out by rain and watering? I have been adding additional potassium throughout the season and am now thinking I may need to add some magnesium as well. __________________ Bigger is Better!