Rabab Moner Nasser*(1) Leila Ahmed Habib(2) and Ghiath Ahmed Alloush(2)
(1). Department of Soil and Water Sciences, Faculty of Agriculture, Tishreen University, Latakia, Syria.
(*Corresponding Author: Eng. Rabab Moner Nasser. Email: firstname.lastname@example.org).
Received: 21/11/2017 Accepted: 15/01/2018
A field trial was conducted for two years (2013 and 2014) at Al Henadi village, which located south of Latakia, to evaluate the response of Bermuda grass to Syrian phosphate rock (PR) and its mixture with three rates of elemental sulfur (10, 20 and 50%) compared to triple super phosphate (TSP). Phosphate sources (TSP and PR) were applied at four rates (0, 520, 1040, and 1560 kg P/ha). Amendments were added at the beginning of the experiment. Eight consecutive cuts were executed during the experiment. The results showed that Bermuda grass was able to use PR during the first year, with a relative agronomic effectiveness (RAE%) of 75% at the end of this year. PR showed a residual effect and this led to continues response during the next year and 109% for RAE was achieved. RAE value increased to 126, 131, and 193% when PR mixed with elemental sulfur at 10, 20, and 50% respectively. Response to PR mixtures with sulfur was continued during the next year.
Key words: Bermuda grass, phosphate rock, sulfur, Agronomic effectiveness.
Full Paper in Arabic: PDF