In order to study the effect of spraying different concentration (200, 300 and 400 ppm) of
micronized sulfur on vegetative growth, yield and fruit physic-chemical characteristics of Sewy date palm trees,
un field experiment was conducted during 2018 and 2019 in sandy soil located at El-Karaga oasis New Valley
Governorate, Egypt. The obtained results confirmed that all vegetative growth leaves main pigments
(chlorophyll a, b and total carotenoids), yield in kg/palm as well as physic-chemical characteristics were
significantly improved as a result of spraying micronized sulfur at 200 to 400 ppm, rather than control treatment.
This increment was parallel and correlated with increasing the concentration used from 200 to 400 ppm.
However, non-significant differences were observed between the two highest concentrations (300 and 400 ppm),
neither during the first nor during the second season. Generally, in order to improving the growth and fruiting of
Sewy date palm trees grown under sandy soil, this study strongly recommended by spraying the palms with 300
ppm micronized sulfur three times yearly.