The Effect of Ricinus Communis and Eucalyptus sp. Extractions and Trichoderma harzianum on the Soil Fungi Fusarium sp and Rhizoctonia sp in the Laboratory and Field

Abstract

This Study has been conducted at a laboratory college of Agriculture of Al – Qadisiya – University . The Result show that there is a significant effect of Ricinus communis and Eucalyptus sp. and Trichoderma harzianum in Potato Dextrose agar (PDA) and the hot water extraction is more effective than cold water extraction . So the fungi spores have suspension of a significant effect on the growth indicators for Ricinus communis in the field

Keywords

• ricinus communis
• eucalyptus
• fusarium
• rhizoctonia
• trichoderma harzianum
• rhizoctonia sp
• fusarium sp