PROCESS FOR PREPARING FOLIAR BIO-FERTILIZERS TOGETHER WITH COMPONENT ESSENTIAL OIL MICRO-CAPSULES AND FOLIAR BIO-FERTILIZER COMPOSITIONS

• Main Authors: OPRESCU ELENA EMILIA, STEPAN EMIL, VELEA SANDA, RADU ADRIAN, EPURE DORU-GABRIEL, GAIDĂU CARMEN CORNELIA, ENĂŞCUŢĂ CRISTINA EMANUELA, RADU ELENA
• Format: Patent
• Language: English; Romanian
• Published: 30.09.2019
• Subjects: CHEMISTRY; FERTILISERS; MANUFACTURE THEREOF; METALLURGY; ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE

The invention relates to a foliar bio-fertilizer composition and to a process for preparing the same. According to the invention, the composition consists of 14.31...19.41% hydrolised proteins with average molecular mass of 320...750 Da, 0.24...0.68% leaves adherence enhancing agent, 0.2...0.3% thickening agent, 0.73...2.70% hydrolised keratin, 6.50...8.25% micro-capsules with essential oil content having an oil release rate of 40.3...48.2% at 120 h, 4.04...5.96% non-ionic surfactants, 0.66...0.92% mixture of Cu, Zn, Fe, Mo, Mn, Mg salts of the ethylenediaminetetraacetic acid, as well as water, for the remainder, the percentage being expressed by mass. According to the invention, the process consists in manufacturing the micro-capsules with essential oil to be added into a mixture comprising hydrolised proteins, usual agents and hydrolised keratin, with intense stirring for 30 min, after which the surfactants and the aqueous solution comprising the salt mixture are added, to result in an aqueous suspension of fertilizer having a stability of >6 months. Invenţia se referă la o compoziţie de biofertilizant foliar şi la un procedeu de obţinere a acesteia. Compoziţia, conform invenţiei, este constituită, în procente masice, din 14,31...19,41% proteine hidrolizate cu masa moleculară medie de 320...750 Da, 0,24...0,68% agent de îmbunătăţire a aderenţei de frunze, 0,2...0,3% agent de îngroşare, 0,73...2,70% cheratină hidrolizată, 6,50...8,25% microcapsule cu conţinut de ulei esenţial având viteza de eliberare a uleiului la 120 h de 40,3...48,2%, 4,04...5,96% surfactanţi neionici, 0,66...0,92% amestec de săruri de Cu, Zn, Fe, Mo, Mn, Mg ale acidului etilendiaminotetraacetic, precum şi, în rest, apă. Procedeul, conform invenţiei, constă în realizarea microcapsulelor cu ulei esenţial care se adaugă într-un amestec format din proteine hidrolizate, agenţii uzuali şi cheratina hidrolizată, cu agitare intensă timp de 30 min, după care se adaugă surfactanţii şi soluţia apoasă conţinând amestecul de săruri, rezultând o suspensie apoasă de fertlizant având o stabilitate >6 luni.