Evaluating the efficacy of sulfur and trichoderma harzianum fungi against wheat (territicum astivum l. )‎ and their effect on production

Abstract EN

Sulfur fertilizers were used in this experiment and the bio-fungus (Trichoderma harzianum) to studying the effect of each of them on the pathogen Alternaria alternata and on the total yield of wheat (Triticum aestivum L.

).

The results showed that the fertilization treatment with potassium sulfate added through the soil was significantly excelled compared to the control treatment with a percentage of decrease amounted to (66.31% ) in the percentage of infection, the same treatment has excelled in reducing the severity of infection with a percentage of decrease amounted to (86.99% ) compared to the control treatment in the growth stage (31).

As for the growth stage (59), the superiority was for the bio-control factor for Trichoderma harzianum, with a decrease in the percentage of infection amounted to 84.22% compared to the control treatment.

As for the severity of infection in the growth stage (59), the superiority was for the fertilization treatment with potassium sulfate with the bio-vaccine (T.

harzianum) added through the soil at a percentage of decrease amounted to (67.47% ) compared to the control treatment.

While the fertilization treatment with potassium sulfate added through the soil was significantly excelled in reducing the severity and percentage of infection in the growth stage 77, with a percentage of decrease amounted to (97.78% and 98.81% ), respectively, compared to the control treatment.

The fertilization treatment with potassium sulfate had a significant excelling in the total yield, with an percentage of increase amounted to 30.17% compared to the control treatment.