Effect of nano N fertilizer on growth, fruiting and the fruits nutritive value of zaghloul date palm

Abstract

An experiment was conducted during two growing seasons 2017 and 2018 seasons to study the impact using of nano N fertilizer compare to conventional form on the growth, yield and nutritive value of the fruits of Zaghloul date palm grown under Qena, Egypt condition. Nano N fertilizer was added at 20, 40, 60 and 80% of recommended dose. Two methods of application, soil surface and foliar spray were used to applied nano fertilizer form. It is evident from the obtained results that using nanotechnology N fertilizer was very effective in improving growth and yield as well as fruits quality compare to using conventional form. Supplying of Zaghloul date palm by 20 % of recommended N dose in form nano fertilizer led to significant decreased in all studied traits. Raising the dose of N nano to 40% of recommended dose failed to show significant differences compared to control. While, raising the dose from nano N to 60% led to significant increasing in all studied traits. However, increasing the dose from 60 to 80 % of recommended dose led to non-significant increase in all studied characteristics. On the other hand, spraying method surpass adding via soil in traits of vegetative growth, while these no significant differences between different methods of application in the other studied traits. From the economic point of view, this study recommends to use N fertilizer in nano-form by rate of 60 % of recommended dose via soil surface in fertilization of Zaghloul date palms.

Partial Replacement of Chemical NPK Fertilizers with Liquid Compost and Banana Pseudostem Sap in ‘Sewy’ Date Palm (Phoenix dactylifera L.)

“…Many causes are responsible for this problem, such as environmental conditions and malnutrition. Fertilization is one of the main limiting factors for growth and productivity of various date palm cultivars, considering that each variety has different fertilization requirements (Minikaev et al, 2021;Abd EL-Rahman and Abd-Elkarim, 2022). Chemical fertilizers are considered a source of agricultural pollutants affecting negatively the ecosystem, especially with its excessive use (El-Ramady et al, 2020;Yadav et al, 2022).…”