Respected sir,

This is a very good nut emerging technology. Actually there are some substances in the root of a crop which inhibits the growth of the others. As an example, we can tell that the pumpkin and bottle gourd can not be grown in the same protective structure or can not be intercropped. So it also works and gives a benefit in the integrated weed control. I have never work with weed control, but in my experimental fields, I have observe this property. For further guidelines you can go through this materials given below as link -

Article Allelopathic cover crop of rye for integrated weed control i...

https://www.researchgate.net/publication/294259602_Allelopathic_effects_and_weed_suppressive_ability_of_cover_crops

https://www.tandfonline.com/doi/abs/10.1080/13504509.2010.507402?src=recsys&journalCode=tsdw20

Thanks for the valuable insights Saswatik Tripathy

The role of allelopathic cover crops can be critical to lowering the weed seed bank over time. These effects are also mediated by competitive interactions. To get the most allelopathic effect the cover needs to be vigorous and complete. The use of cereal winter rye is very effective prior to a summer soybean crop. The cereal rye cover must have some 5,600 kg/ha dry matter to obtain high levels of weed suppression to effectively manage the potential weed losses. This demands treating the cover crop with certain priority and not as just an after throught. This approach varies in being preventive rather than remediative in its application. At Rodale we developed systems of regenerative no till where the advantages of cover crops organic culture and reducing tillage can be used in tandem and will the use of labor saving implements.