new heterocyclic compounds, nitrogenous compounds, compositions thereof, their preparation and their application in order to reduce the loss of humidity of plants and to increase yield of crops

摘要

the invention relates to a process for reducing the loss of humidity and transpiration of plants to improve the yield of crops.by applying on the surface of plants or crops in a quantity effective to heterocyclique contains nitrogen.the invention relates to novel heterocyclic compounds and also compounds, their methods of preparation.