Batool Salameh* (1),Leila Habib (1), Areej Adra (2) and Zyad Hatem (1)
(1). Department of soil and water sciences, Faculty of Agriculture, Tishreen University- Lattakia-Syria.
(2). Department of Environmental Chemistry, Higher Institute for Environmental Research, Tishreen University. Lattakia. Syria.
(*Corresponding author: Batool Salameh. Email: Batoolzaka@gmail.com)
Received: 23/10/2022 Accepted: 6/12/2022
Abstract:
In this study, the effect of two slow-release phosphate fertilizers (SRF1, SRF3) on Zea maize growth was studied in comparison with commonly used triple superphosphate (TSP) fertilizer. The slow-release fertilizers were prepared by phosphate loading on a surface-modified nanozoolite by treating with hexa dimethyl triamine-bromide (HDTMA-Br) with two modification rates: 100 and 300% of the external cation exchange capacity ECEC of nanozeolite, they called: SRF1 and SRF3 respectively. A greenhouse pot experiment was carried out in Tishreen University, Lattakia, Syria during summer of 2022. The experiment included three treatments from different fertilizer sources, the commonly used triple superphosphate fertilizer TSP and the prepared slow-release fertilizer SRF1 and SRF3. Fertilizers were applied at three levels based on their phosphorous content, which are 10, 20, 30 ppm as P . Main achieved results of the study: a significant increase in plant shoot weight by using slow-release fertilizers SRF1 and SRF3 compared to TSP treatment. The use of slow-release fertilizers led to an increase in phosphorus uptake by the plant, and it was significantly higher than TSP treatment. The slow-release phosphate fertilizers showed a high phosphorus use efficiency, it reached to 53% for the SRF1 treatment and 45% in the SRF3 treatment, while it didn’t exceed 10% in the TSP treatment.
Key words: Nano-fertilizers, Phosphorus, Slow release fertilizers, P-Efficiency, Zea maize.
Full paper in Arabic: pdf