The invention relates to the field of agriculture and, in particular, to products for improving agricultural crop yields. More specifically, the present invention relates to a strengthening composition that regulates transpiration and protects leaves and fruits, said composition containing zeolite as a base, preferably zeolite 4A, and other additives which boost the activity thereof and facilitate the application of same in an aqueous suspension or dry. In addition, the invention relates to the different uses of said composition.
