too much compost?

Can we have too much compost?


In the spirit of continuously questioning all of my habitual garden practices, the thought occurred to me that maybe conventional wisdom needs questioning. Could I be using too much compost?

“Linda Chalker-Scott, a horticulturist at both Washington University and Washington State University, with experience in forests, landscaping, and gardens, devotes several entries in her “Horticultural Myths” column to proving that one can indeed use too much compost…”

Freak out.

“The nutrient content of compost and other organic amendments is much lower than that of most fertilizers. When it is mixed with soil at a ratio of 1:4 or even higher, there’s a huge, but slowly- released nutrient load. Compost increases the nutrients in soil not only by adding those it contains, but also by boosting the activity of microbes that release nutrients already in the soil. The nutrients contributed by compost, therefore, far exceed those actually in it.”

OK.  I…

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