The work responses to needs of having a coffee seedlings production technology in a sustainable way, the reason why micorrhizae, earthworm humus and green fertilizers were combined, which allowed to find a soil-effective strain high specificity, being the main criterium for strain selection, mostly determined by sustratum riches. The studied soils represent more than the 40% of Cuban agriculture soils.

The result have been initially generalized in coffeee enterprises with a strong economic impact, annually saving 2 800 tons of fertilizer. It was for the first time established a mycorrhisal associations management system in coffee seedlings production, determined as a procedure in each type of soil, with an adequate indicators and measurment parameters selection.

The result was internationally accredited as novel with supports of Mursia University, Spain, an Agrobiology specialist from Brazil and Dr. Octavio Pérez from INIFAP of Mexico. It has been supported by Coffee Enterprises and the Ministry of Agriculture. It has also 14 related publications and several reports. A total of 25 works were presented in national and international events. Two Masters in Sciences obtained their degree out of it. It has obtained acknowledgements in Science and Technology Forum and in the 15th Congress of the Soil Science Latin American Society, were it received the Best Research Award.