Response of moringa plants to foliar application of nitrogen and potassium fertilizers
Moringa is a native plant and is grown wild in the Red Sea belts and Southeast Asia. All moringa parts are edible and have long been consumed by humans. Moringa is a model plant for cultivation in desert areas and newly reclaimed land. This study is aiming to evaluate the response of one-year-old moringa (Moringa oleifera) plants cultivated in two different soil types to different foliar applications of nitrogen (N) and potassium (K) fertilizers. The field experiment was carried out in newly reclaimed land at Belbeis desert, Sharkia governorate, north-east of Egypt. A two-factorial experiment was conducted in a split plot design with three replicates. The first factor was soil types, e.g., sandy soil and calcareous soil. The second factor contained four foliar application treatments, e.g., single N, single K and combined treatment of N and K fertilizers compared with untreated control. Plant vegetative growth characters, yield and its components as well as chemical composition of leaves were evaluated. Plants cultivated in sandy soil showed a better response in terms of vegetative growth characters (plant height and number of leaves plant-1), pod yield and its components (number of pods plant-1, mean pod length and number of seeds plant-1) compared to those cultivated in calcareous soil. All foliar application treatments improved the vegetative growth characters, yield and pod quality as well as chemical contents (total chlorophyll, vitamin C, N, K and Ca) of leaves compared to untreated control. The combined treatment of N and K ranked first in increasing moringa growth and productivity, followed by the single N and, finally the single K treatment.
Abdelwanise, F.M., Saleh, S.A., Ezzo, M.I., Helmy, S.S. and Abodahab, M.A. (2017). Response of moringa plants to foliar application of nitrogen and potassium fertilizers. Acta Hortic. 1158, 187-194
moringa, soil types, nitrogen, potassium, foliar application, leaves and seeds