Corrugated board adhesives
Corrugated board adhesives are the next largest application of non-food starches globally.
Starch glues are mostly based on unmodified native starches, plus some additive such as
borax and caustic soda. Part of the starch is gelatinized to carry the slurry of uncooked
starches and prevent sedimentation.
Adam Briggs wrote:But you still run into problems of ink and glue going in the ground. Especially with the old carpet. Lots of glue and toxins there.
I do not recommend these methods.
Peter Herrel wrote:I think that the more organic material you piled on that cardboard the faster it would decompose. I have an old hemp shower curtain that I'm going to experiment as a grass suppression layer in a sheet mulch this winter.
Do you have any pictures of the cardboard underneath the straw? How much straw was used exactly?