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INFLUENCE OF SOME NPK FERTILIZERS WITH PROTEIN HYDROLYSATES ON SUNFLOWER CROP

Published in AgroLife Scientific Journal, Volume 6, Number 1
Written by Daniela MIHALACHE, Ana Maria STĂNESCU

Organic substances, such as: protein hydrolysates of animal origin (composed of peptides, ureide and amino acids) and protein hydrolysates of vegetal origin (algae extracts) can be successfully used to obtain new fertilizers formulas. These natural protein hydrolysates are embedded in different NPK matrix that contains meso and microelements, i.e. Fe, Cu, Zn, Mn, Mg, S, Co, Mo, resulting thus a variety of foliar fertilizers that can be used in both, conventional and organic farming (especially to protect crops from stress factors, climatic accidents and to prevent or correct nutritional deficiencies). The efficacy of these foliar fertilizers was tested in the National Network for Fertilizers Testing on sunflower crop. The tested products showed a favorable influence on sunflower seeds production by stimulating the accumulation of biomass and increasing the number of seeds/capitulum. The obtained results showed significant production yields, statistically insured.

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