تاثير الرش بالسماد الورقي (البولي سلفايد)‎على إصابة بعض فسائل نخيل التمر بالفطر Alternaria Alternata كمسبب لمرض التبقع على الأوراق

Abstract EN

This experiment was carried out to study the effect of spraying with leave fertilizer (poly sulfide) with different concentrations on infecting date palm offshoot with Alternaria alternata as a cause of spot disease on the leaves, and the concentrations used were (0, 2, 4, 6) cm3/L.

The results showed that there were significant differences between the concentrations used The highest rate of effect of leave fertilizer (polysulfide) when spraying at 6 cm3/L and the lowest rate of development of artificial infection with fungi Alternaria alternata (2, 025 mm, followed by concentration 4 and 2 cm 3 / liter).

Recording 2.575 and 3.275 mm respectively, and recorded a comparative treatment.

The rate of development of synthetic infection 3.725 mm.

The results showed that there were significant differences between the concentrations used, with a direct relationship with the increase in concentration, for all varieties (Al-Sayer, Halawi and Al-Barhi), and that the highest rate of effect was when spraying with a concentration of 6 cm3/ L.