تأثير تشميس التربة على الأعشاب الضارة في محصول السمسم في دلتا تبن بمحافظة لحج، اليمن

الملخص EN

A field experiment was conducted at the Agriculture College in Delta Tuban, Lahej Governorate, using transparent and black polyethylene sheets mulching for 30 or 60 days.

Sesame seeds were sown after solarization.

Results indicated that soil solarization using transparent and black polyethylene sheets decreased significantly the annual weed population in the field and their dry weight by 67.7-90.3 and 59.3-77.1%, 45 days after planting, and by 42.6-79.2 and 41.5-63.7% immediately after harvest as compared to the non- solarized treatment, respectively.

Mulching with transparent sheets for 30 or 60 days was better than mulching with black sheets.

The perennial weeds such as Alhagi maurorum Medik, Cyperus rotundus L, and Cassia italica (Mill) Lam.

Ex Steud.

were not affected by soil solarization.

Crop yield was positively affected by soil solarization and increased significantly by 15.0-24.8%, as compared to the control.