UN SDG
Horticultural Studies (HortiS) 2014, Vol 31, Num, 1     (Pages: 1-16)
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The effects of humic acid on nutrient status yield and quality of tomato

Elif Işıl DEMİRTAŞ 1 ,Filiz ÖKTÜREN ASRİ 1 ,Nuri ARI 1

1 Batı Akdeniz Tarımsal Araştırma Enstitüsü, Antalya Viewed : 2026 - Downloaded : 1864 In order to increase organic matter content of soil, humic acid application is the most economic and fast method. In this study, the effects of humic acid and their dosages (0, 4, 8, 12, 16 and 20 l da-1) on nutritional, status of tomato and yield-quality were investigated. During the growing period, a dose of NPK was applied through drip irrigation. The experiment was carried out according to randomized completeconditions in 2011-2013 autumn tomato growing season. In order to determine effects of humic acid, plant and leaves fruit were analyzed during the experiment.

The results of analysis showed that increases of N, P, K, Fe, Cu content of tomato leaves was found important whereas Ca, Mg, Mn, Zn and B content was not important statistically. The effect of humic acid+NPK applications on fruit quality of tomato was positive. Fruit yield was increased by humic acid applications compared to control. block design with four replications under greenhouse Keywords : Tomato, Humic acid, Plant nutrition, Yield, Quality