Humic substances application for the vegetative development of hybrid tomato seedlings (Lycopersicon esculentum L.)

It is known that the use of resistant cultivars and mineral nutrition associated with humic substances, such as fulvic acids, can favor plant development, promoting aerial parts roots growth, being a viable technique for better vegetative development plants in general, and, consequently, final productivity. The aim this work was to evaluate effect fertilizer Bio Humate®, based on Justyne® hybrid tomatoes. experiment conducted greenhouses University Tuiuti do Paraná/Brazil completely randomized experimental design, arranged 4 x 2 factorial scheme three doses commercial product’s application (1.5, 2, 2.5 mL L-1 Humate®) repetitions tomato seedlings were subjected samplings at 42nd 56th days after transplanting (DAT)). treatments applied every 14 days, starting 7 DAT 42 56 DAT. soil Humate® showed results biometric biochemical parameters evaluated tomatoes, even though chlorophyll content lowest.