It has been studying the effect of salicylic acids derivates, in particular of ammonium- and potassium- tioureidosalicilates in combination with bioactive polyvinylpyrrolidone co-polymer on growth and development processes of cucumber, potatoes, corn plants targeting possibility to stabilize / increase the production process, in laboratory, green house and field conditions experiments, during several years. The administration of compounds (by seeds and foliar surface treatments) makes the consumption to be more economical and the use of soil water reserves more productive by increasing water retention capacity in tissues, activation of the biosynthesis and phytobiomass accumulation, which ensure the formation of more vigorous plants with higher productivity. It was established the compatibility of salicylic acids derivates with the chemical protective substances against diseases and pathogens, which provides economic advantages and environmental safety of the plant cultivation technology and enables to reduce of the labour and anthropogenic costs. 

În experienele realizate n condiii de cmp pe parcursul a mai multor ani, a fost studiat efectul unor derivai ai acidului salicilic (n particular al tioureidosalicilailor de amoniu i potasiu, n combinaie cu copolimerul bioactiv polivinilpirolidon) asupra proceselor de cretere i dezvoltare a plantelor de castravei, cartof, porumb, vizând posibilitatea stabilizrii / majorrii procesului de producie. Administrarea preparatului (prin tratarea seminelor i aparatului foliar) condiioneaz consumul mai economic i utilizarea mai productiv a rezervelor de ap din sol prin majorarea capacitii de reinere a apei n esuturi, activarea biosintezei i acumularea fitomasei, ceea ce asigur formarea unor plante mai viguroase cu o productivitate ridicat. S-a stabilit compatibilitatea preparatelor cu substanele de protecie chimic contra duntorilor i a patogenilor, ceea ce asigur rentabilitatea economic i sigurana ecologic a tehnologiei de cultivare a plantelor i permite reducerea costurilor de producie.