Effect of Foliar Application of Humic Acid, Em and Mineral Fertilization on Yield and Quality of Carrot Under Organic Fertilization

Document Type : Original Article

Author

Department of Soil sciences, Faculty of Agriculture, Mansoura University- El-Mansoura-Egypt.

Abstract

The current experiment was established in the experimental farm of faculty of agricultural, El-Mansoura University, Egypt, to check the growth, yield and quality of carrot (Daucus carota L. ) cv. Korea against the interaction application of mineral fertilization at different rates from recommended dose (50, 75 and 100%), foliar application of humic acid and addition of effective microorganisms (EM) all under compost town refuse as organic fertilization during season of 2017-2018. Experiment was laid out in complete randomized design with 14 treatments and each treatment was repeated three times.In general, it can be concluded that fertilizing with compost town refuse + 75% NPK +foliar application of humic acid and effective microorganisms gave the highest mean values of root length, diameter, weight and total yield as well as N, P, K%, Fe, Zn, Cu, Cd (mg kg-1 ) as chemical components and total soluble soilds, total carotene, total carbohydrates, total sugar and vitamin A as quality parameters comparing with the control (without fertilization). As for soil availability, it was observed the highest mean values only with town refuse over control.

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