As
you know, I'm
obsessed with leaves at the moment. I want to know which
tree leaves break down quickly for use in my
vegetable garden, which ones provide the nutrients needed by my fruit
trees, and so on.
The scientific
literature is full of intriguing answers.
Agroforesters in the tropics have been untangling the costs and
benefits of using tree leaves as a fertility source for decades and
some suggest that tree leaves can make up nearly 100% of the
nutritional requirements of vegetable crops. But no
one seems interested in using tree leaves on a large scale in the
U.S. I can only assume that chemical
fertilizers are so much cheaper than labor here that using tree leaves
isn't worth farmers' while.
Can we apply any of the
lessons learned in the tropics to our southeast
U.S. garden? This week's lunch time series will at least give it
a shot.
This post is part of our Leaves for Fertility lunchtime series.
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