Quote:
Originally Posted by Redbaron
Plants create soil with exudates. They also have different specialties in root systems, some deep tap roots and some fine sod making roots and many variations in between. Then through mycorrhizal fungi they share what they have excess for what they are lacking.
Now to be clear, this depends how the crop gets its plant nutrients. If you feed your plants with outside nutrients, (whether chemical ferts or manure) then yes, eliminate the weeds. But if you use biological processes for the bulk of the plants' nutrition, then no, as biodiverse as possible is best, because that creates soil.
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I stick by my statement. I don't see any benefit. Weeds rob soil, they do not create it. Weeds can kill trees, by taking all available nutrients. Why you mulch to keep weeds away from tree roots. Common knowledge. It's not just trees, many plant suffer greatly from the presence of weeds. So much so seed packets sometimes warn about weeds.