Amiga
Lovin' The Homestead
The best thing for the root zone is material that has already at least mostly composted, as well as some mineral components. Recognizable leaves, straw, and wood bits will still be using up more nitrogen than they release.
There are some seeming exceptions. When growing potatoes in a tower, one fills in straw or leaves as they grow. However, to my experience, the potato pieces used to start the plant sit on soil or in compost - and that's where the primary roots go to feed.
Some of the nitrogen draw of high-carbon material can be mitigated if material high in nitrogen is included. I am thinking cottonseed meal or blood meal. I have grown in a pile of used duck bedding by digging a hole, filling that with compost, and setting my winter squash plant in there. Over time, as the bedding broke down, the squash could send its roots through, and also down into the parent soil the bedding was sitting on. But I made sure it had a basic bucket of plant-usable organic material to get going.
There are some seeming exceptions. When growing potatoes in a tower, one fills in straw or leaves as they grow. However, to my experience, the potato pieces used to start the plant sit on soil or in compost - and that's where the primary roots go to feed.
Some of the nitrogen draw of high-carbon material can be mitigated if material high in nitrogen is included. I am thinking cottonseed meal or blood meal. I have grown in a pile of used duck bedding by digging a hole, filling that with compost, and setting my winter squash plant in there. Over time, as the bedding broke down, the squash could send its roots through, and also down into the parent soil the bedding was sitting on. But I made sure it had a basic bucket of plant-usable organic material to get going.